850-20 Tubular Diaphragm Seawater Relief Valve

The Cla-Val Model 850-20 Seawater Relief Valve is a pressure-operated, in-line axial valve. A tube diaphragm actuates the valve, which is comprised of three major components: 1) Tube 2) Barrier and 3) Body. There is only one moving part in the valve – the tube diaphragm. There are no shafts, packing, stem guides or springs