plastic non return valve diaphragm valve in line valve 1.100% factory tested 2. Free sample 3. Free freight 4. best price plastic non return valve diaphragm valve in line valveDCV018AVNproduct detailbody material: PA66diaphragm material: VITONopening pressure: < 1.0KPAback pressure: > 0.3MPA Major Applicationindustrial inkjetwide inkjet printerstestergasoline engineCheck valves are used to ...