Backwater valve dn 250mm end, type 0, for external sewage system ZBK250

High product durability achieved through the use of the highest quality materials in the production process. Resistance to sewage temperature up to 95 degrees C. All metal parts are made of stainless steel. Design ensuring 100% uninterrupted sewage flow. Chrome-nickel cover of the hatch protecting against rodents not only the hatch, but also the gasket, and in addition, preventing it from slipping off. Excessive resistance to internal pressure - up to 1.0 bar. No obstacles or faults to disturb the flow.