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SFA20 D precast concrete headwalls are designed to comply with Sewers for Adoption guidelines for pipework discharging into open watercourses for plastic, clay or concrete pipework up to 1500mm. SFA20 D concrete headwalls have a backwall height of 2350mm and are manufactured in 2 pieces. We cast the opening in the back wall of our precast headwalls to suit the pipe diameter and material of the pipe being used. We can cast multiple pipe openings, elliptical, square or rectangular culvert openings into any of our precast concrete headwalls. We can also cast pipe openings into the wing walls of our headwalls. We can factory fit all our precast SFA headwalls with Kee Klamp® handrails, Sewers for Adoption specification gratings, flap valves, penstocks and other flow control devices.

All Althon Sewers for Adoption precast headwalls are available with either 300 or 500mm thick toe extensions. If you cannot find the drawing or information you are looking for please contact us. The SFA20 D headwall weighs 7305kg / 3653kg per half.

If you require any assistance or more information please contact us by phone on 01603 488700 or by email sales@althon.co.uk

SFA20 D Headwall line drawing
As standard our headwalls have a natural concrete finish.
We can offer coloured headwalls in 4 colours but the final shade is affected by many influences.
Our Headwall Products are available in a range of colours
Natural
Our Headwall Products are available in a range of colours
Cotswold
Our Headwall Products are available in a range of colours
Agate
Our Headwall Products are available in a range of colours
Raven Grey
Our Headwall Products are available in a range of colours
Everglade
Product Name
Max Pipe Opening PCC
Max Pipe Opening Plastic / C'ware
Backwall Height
Approx Headwall Weight (kg)
SFA20 D Headwall
1500
1500
2350
7305

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    SFA20 D Headwall + 1000 x 500mm Toe + 1100mm Penstock + Cranked Grating + 3 Sided Kee Klamp

    SFA20 D Headwall + 1000 x 500mm Toe + 1100mm Penstock + Backwall Kee Klamp

    SFA20 D Headwall + 1000 x 500mm Toe + 1100mm Penstock + Cranked Grating + Backwall Kee Klamp

    SFA20 D Headwall + 1000 x 500mm Toe + 1100mm Penstock + Halfway Kee Klamp

    SFA20 D Headwall + 1000 x 500mm Toe + 1100mm Penstock + Cranked Grating + Halfway Kee Klamp

    SFA20 D Headwall + 1000 x 500mm Toe + 1200mm Penstock

    SFA20 D Headwall + 1000 x 500mm Toe + 1200mm Penstock + 3 Sided Kee Klamp

    SFA20 D Headwall + 1000 x 500mm Toe + 1200mm Penstock + Backwall Kee Klamp

    SFA20 D Headwall + 1000 x 500mm Toe + 1200mm Penstock + Halfway Kee Klamp

    SFA20 D Headwall + 1000 x 500mm Toe + 1300mm Penstock

    SFA20 D Headwall + 1000 x 500mm Toe + 1300mm Penstock + 3 Sided Kee Klamp

    SFA20 D Headwall + 1000 x 500mm Toe + 1300mm Penstock + Backwall Kee Klamp

    SFA20 D Headwall + 1000 x 500mm Toe + 1300mm Penstock + Halfway Kee Klamp

    SFA20 D Headwall + 1000 x 500mm Toe + 1500mm Penstock

    SFA20 D Headwall + 1000 x 500mm Toe + 1500mm Penstock + 3 Sided Kee Klamp

    SFA20 D Headwall + 1000 x 500mm Toe + 1500mm Penstock + Backwall Kee Klamp

    SFA20 D Headwall + 1000 x 500mm Toe + 1500mm Penstock + Halfway Kee Klamp

     

    BIM Objects

    If you cannot find what you are looking for, please either email us or use our Headwall Design Service

    You can select multiple files below to be added to a single zip file, your selections will be retained across different Headwalls

    SFA20 D Headwall - 1200mm ID pipe - 225mm Invert Level

    Example Render

    SFA20 D Headwall - 1200mm ID pipe - 225mm Invert Level render

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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_SFA20D_1200mmIDPipe_225mmIL_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-20T11:36:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberSFA20D
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2200
    NominalWidth2000
    NominalHeight2350
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2200 x 2000 x 2350
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_SFA20D_1200mmIDPipe_225mmIL
    Version1
    LastUpdated2019-05-20T11:36:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 1500mm ID and Max Pipe Opening Pastic/Clayware = 1500mm ID
    AlthonToeInformationOur Sewers for Adoption compliant outfall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    SFA20 D Headwall - 1200mm ID pipe - 225mm Invert Level + 400 x 300mm Toe

    Example Render

    SFA20 D Headwall - 1200mm ID pipe - 225mm Invert Level + 400 x 300mm Toe render

    IFC Object

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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_SFA20D_1200mmIDPipe_225mmIL_400x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-20T11:36:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberSFA20D
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2200
    NominalWidth2000
    NominalHeight2350
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2200 x 2000 x 2350
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_SFA20D_1200mmIDPipe_225mmIL_400x300mmT
    Version1
    LastUpdated2019-05-20T11:36:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 1500mm ID and Max Pipe Opening Pastic/Clayware = 1500mm ID
    AlthonToeInformationOur Sewers for Adoption compliant outfall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    SFA20 D Headwall - 1200mm ID pipe - 225mm Invert Level + 650 x 300mm Toe

    Example Render

    SFA20 D Headwall - 1200mm ID pipe - 225mm Invert Level + 650 x 300mm Toe render

    IFC Object

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    Last Updated: May 20, 2019, 11:36 a.m.

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    ADSK Object

    Version: 1
    Last Updated: May 20, 2019, 11:36 a.m.

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    RFA Object

    Version: 1
    Last Updated: May 20, 2019, 11:36 a.m.

    Download RFA Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_SFA20D_1200mmIDPipe_225mmIL_650x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-20T11:36:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberSFA20D
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2200
    NominalWidth2000
    NominalHeight2350
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2200 x 2000 x 2350
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_SFA20D_1200mmIDPipe_225mmIL_650x300mmT
    Version1
    LastUpdated2019-05-20T11:36:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 1500mm ID and Max Pipe Opening Pastic/Clayware = 1500mm ID
    AlthonToeInformationOur Sewers for Adoption compliant outfall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    SFA20 D Headwall - 1200mm ID pipe - 225mm Invert Level + 950 x 300mm Toe

    Example Render

    SFA20 D Headwall - 1200mm ID pipe - 225mm Invert Level + 950 x 300mm Toe render

    IFC Object

    Version: 1
    Last Updated: May 20, 2019, 11:36 a.m.

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    ADSK Object

    Version: 1
    Last Updated: May 20, 2019, 11:36 a.m.

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    RFA Object

    Version: 1
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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_SFA20D_1200mmIDPipe_225mmIL_950x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-20T11:36:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberSFA20D
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2200
    NominalWidth2000
    NominalHeight2350
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2200 x 2000 x 2350
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_SFA20D_1200mmIDPipe_225mmIL_950x300mmT
    Version1
    LastUpdated2019-05-20T11:36:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 1500mm ID and Max Pipe Opening Pastic/Clayware = 1500mm ID
    AlthonToeInformationOur Sewers for Adoption compliant outfall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    SFA20 D Headwall - 1350mm ID pipe - 225mm Invert Level

    Example Render

    SFA20 D Headwall - 1350mm ID pipe - 225mm Invert Level render

    IFC Object

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    ADSK Object

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    RFA Object

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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_SFA20D_1350mmIDPipe_225mmIL_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-20T11:36:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberSFA20D
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2200
    NominalWidth2000
    NominalHeight2350
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2200 x 2000 x 2350
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_SFA20D_1350mmIDPipe_225mmIL
    Version1
    LastUpdated2019-05-20T11:36:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 1500mm ID and Max Pipe Opening Pastic/Clayware = 1500mm ID
    AlthonToeInformationOur Sewers for Adoption compliant outfall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    SFA20 D Headwall - 1350mm ID pipe - 225mm Invert Level + 400 x 300mm Toe

    Example Render

    SFA20 D Headwall - 1350mm ID pipe - 225mm Invert Level + 400 x 300mm Toe render

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    Last Updated: May 20, 2019, 11:36 a.m.

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    ADSK Object

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    RFA Object

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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_SFA20D_1350mmIDPipe_225mmIL_400x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-20T11:36:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberSFA20D
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2200
    NominalWidth2000
    NominalHeight2350
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2200 x 2000 x 2350
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_SFA20D_1350mmIDPipe_225mmIL_400x300mmT
    Version1
    LastUpdated2019-05-20T11:36:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 1500mm ID and Max Pipe Opening Pastic/Clayware = 1500mm ID
    AlthonToeInformationOur Sewers for Adoption compliant outfall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    SFA20 D Headwall - 1350mm ID pipe - 225mm Invert Level + 650 x 300mm Toe

    Example Render

    SFA20 D Headwall - 1350mm ID pipe - 225mm Invert Level + 650 x 300mm Toe render

    IFC Object

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    Last Updated: May 20, 2019, 11:36 a.m.

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    ADSK Object

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    Last Updated: May 20, 2019, 11:36 a.m.

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    RFA Object

    Version: 1
    Last Updated: May 20, 2019, 11:36 a.m.

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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_SFA20D_1350mmIDPipe_225mmIL_650x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-20T11:36:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberSFA20D
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2200
    NominalWidth2000
    NominalHeight2350
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2200 x 2000 x 2350
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_SFA20D_1350mmIDPipe_225mmIL_650x300mmT
    Version1
    LastUpdated2019-05-20T11:36:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 1500mm ID and Max Pipe Opening Pastic/Clayware = 1500mm ID
    AlthonToeInformationOur Sewers for Adoption compliant outfall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    SFA20 D Headwall - 1350mm ID pipe - 225mm Invert Level + 950 x 300mm Toe

    Example Render

    SFA20 D Headwall - 1350mm ID pipe - 225mm Invert Level + 950 x 300mm Toe render

    IFC Object

    Version: 1
    Last Updated: May 20, 2019, 11:36 a.m.

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    ADSK Object

    Version: 1
    Last Updated: May 20, 2019, 11:36 a.m.

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    RFA Object

    Version: 1
    Last Updated: May 20, 2019, 11:36 a.m.

    Download RFA Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_SFA20D_1350mmIDPipe_225mmIL_950x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-20T11:36:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberSFA20D
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2200
    NominalWidth2000
    NominalHeight2350
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2200 x 2000 x 2350
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_SFA20D_1350mmIDPipe_225mmIL_950x300mmT
    Version1
    LastUpdated2019-05-20T11:36:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 1500mm ID and Max Pipe Opening Pastic/Clayware = 1500mm ID
    AlthonToeInformationOur Sewers for Adoption compliant outfall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    SFA20 D Headwall - 1500mm ID pipe - 225mm Invert Level

    Example Render

    SFA20 D Headwall - 1500mm ID pipe - 225mm Invert Level render

    IFC Object

    Version: 1
    Last Updated: May 20, 2019, 11:36 a.m.

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    ADSK Object

    Version: 1
    Last Updated: May 20, 2019, 11:36 a.m.

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    RFA Object

    Version: 1
    Last Updated: May 20, 2019, 11:36 a.m.

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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_SFA20D_1500mmIDPipe_225mmIL_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-20T11:36:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberSFA20D
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2200
    NominalWidth2000
    NominalHeight2350
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2200 x 2000 x 2350
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_SFA20D_1500mmIDPipe_225mmIL
    Version1
    LastUpdated2019-05-20T11:36:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 1500mm ID and Max Pipe Opening Pastic/Clayware = 1500mm ID
    AlthonToeInformationOur Sewers for Adoption compliant outfall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    SFA20 D Headwall - 1500mm ID pipe - 225mm Invert Level + 400 x 300mm Toe

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    SFA20 D Headwall - 1500mm ID pipe - 225mm Invert Level + 400 x 300mm Toe render

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    ADSK Object

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    RFA Object

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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_SFA20D_1500mmIDPipe_225mmIL_400x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-20T11:36:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberSFA20D
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2200
    NominalWidth2000
    NominalHeight2350
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2200 x 2000 x 2350
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_SFA20D_1500mmIDPipe_225mmIL_400x300mmT
    Version1
    LastUpdated2019-05-20T11:36:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 1500mm ID and Max Pipe Opening Pastic/Clayware = 1500mm ID
    AlthonToeInformationOur Sewers for Adoption compliant outfall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    SFA20 D Headwall - 1500mm ID pipe - 225mm Invert Level + 650 x 300mm Toe

    Example Render

    SFA20 D Headwall - 1500mm ID pipe - 225mm Invert Level + 650 x 300mm Toe render

    IFC Object

    Version: 1
    Last Updated: May 20, 2019, 11:36 a.m.

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    ADSK Object

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    RFA Object

    Version: 1
    Last Updated: May 20, 2019, 11:36 a.m.

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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_SFA20D_1500mmIDPipe_225mmIL_650x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-20T11:36:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberSFA20D
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2200
    NominalWidth2000
    NominalHeight2350
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2200 x 2000 x 2350
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_SFA20D_1500mmIDPipe_225mmIL_650x300mmT
    Version1
    LastUpdated2019-05-20T11:36:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 1500mm ID and Max Pipe Opening Pastic/Clayware = 1500mm ID
    AlthonToeInformationOur Sewers for Adoption compliant outfall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    SFA20 D Headwall - 1500mm ID pipe - 225mm Invert Level + 950 x 300mm Toe

    Example Render

    SFA20 D Headwall - 1500mm ID pipe - 225mm Invert Level + 950 x 300mm Toe render

    IFC Object

    Version: 1
    Last Updated: May 20, 2019, 11:36 a.m.

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    ADSK Object

    Version: 1
    Last Updated: May 20, 2019, 11:36 a.m.

    Download ADSK Object

    RFA Object

    Version: 1
    Last Updated: May 20, 2019, 11:36 a.m.

    Download RFA Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_SFA20D_1500mmIDPipe_225mmIL_950x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-20T11:36:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberSFA20D
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2200
    NominalWidth2000
    NominalHeight2350
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2200 x 2000 x 2350
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_SFA20D_1500mmIDPipe_225mmIL_950x300mmT
    Version1
    LastUpdated2019-05-20T11:36:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/sfa20-d-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 1500mm ID and Max Pipe Opening Pastic/Clayware = 1500mm ID
    AlthonToeInformationOur Sewers for Adoption compliant outfall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    Brochures, Datasheets and Installation Instructions for SFA20 D Headwall

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