250mm ASA Manhole & Flow Control Penstock
250mm ASA Manhole & Flow Control Penstock to suit pipework up to 250mm and designed for use in manhole chambers and Flow Control chambers.
Our Flow Control penstocks have a design life of 50 years at 1Mwc and 72 hours at 5Mwc.
Typically the contractor will create a flat surface within the manhole chamber to fix the penstock to. The smoother the surface finish of the concrete the better the seal will be between the penstock and the wall. We provide all required fixing bolts, chemical anchors and an EPDM seal with every penstock.
Our penstocks for Flow Control and manhole chambers are manually operated with a T – key and have a non – rising spindle. Where required we can provide a spindle extension from the top of the penstock to the cover level.
