1095-00-216-2265

4820-01-358-8277 4820013588277 013588277 is a valve designed specifically so the diaphragm seals the flow stream from the valve operating mechanism. the flow is controlled by the lifting of the diaphragm from or compressing it against an integral seat. for packless diaphragm valves which utilize a diaphragm as packing and a disk to control the flow, see valve, y.

4820-01-359-0550 4820013590550 013590550 is a valve permitting flow in one direction only. it does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. it may be inline or cartridge (manifold) design.