Type 405 - Non return valve
The head loss is very low as the plate folds away completely. Plate angled on the valve seat to ensure closure.The unrestricted passage out through the valve means that it can be used for all kinds of water including waste and sewage. All parts in metal are coated, so there is no risk of corrosion. Inspection cover for ease of dismantling. The check valve is designed with a drain plug. The plate may be lifted by external screw if required.
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