The WAR valve is easy to fit and operates in 11omm or 4" straight or bent clay or plastic pipe.
This valve is a universal fit product due to its unique design with a shaped stainless steel flap, that also has an intergrated mechanism to allow it to be locked watertight and is also rodent resistent.
Typically installed in the last access chamber before the sewer to prevent backflows affecting the drainage of the dwelling.
Should only be pushed into the upstream connection / inlet to the manhole, do not fit into the downstream / outlet from the chamber.
Suitable for most situations as the swing of the flap usually clears even if the channel is at 45 degrees.
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