Flap Gate Valve – Designed by NORHAM, Predl Systems provides a flow control solution for sewers from a Flap Gate with high mechanical strength due to durable GRP construction. Effective watertight solution up to 1 bar (10m head), back pressure (0.8 to 1.0 bar by model) and flexible couplings enable watertight connection to any circular pipe. Integral rubber seals are replaceable if damaged. The Flap Gate is constructed from corrosive and UV resistant materials for long service life with low maintenance. Factory-installed by Predl with the manhole base liner as a seamless, fully integrated component.
Slide Gate Valve – Valterra Products Inc., California supplies Predl Systems with an economical Slide Gate Valve ideal for sewage manhole service applications when there is low head flow pressure. The Slide Gate is equipped with a stainless steel manually controlled handle and knife for corrosion protection. Available in a range of sizes including 3” (76mm), 4” (102mm), 6” (152mm) and 8” (203mm). Factory installed by Predl with the manhole base liner as a seamless, fully integrated component.