Pilot Operated Check Valve

Check Valve The check valve is a valve which automatically opens and closes valve disc depending on the flow of the medium itself, and it is also used to prevent medium from flowing backwards. It is also called single direction valve, no-return valve and back pressure valve. Production Size:DN40-DN600mm Pressure range:PN10,PN16 Design Standard: Face to Face:DIN3202/EN558-1 F6 Flange Standard:EN 1092/DIN2533 Testing Standard:EN12266 Main Material of parts: Body:GG20/GG25/GGG45/GGG50 Disc:GG20/GG25/GGG45/GGG50/Carbon steel Stem:2Cr13/SS304/SS316 Seat:Brass/Stainless Steel Check valve is a kind of automatic valve,Main function of check valve is to prevent the reverse flow of the medium, prevent the reversal of the pump and drive motor, and the discharge of the container medium.