Press fitting system joins pipe without welding or bolting, can be widely used in cold and hot water supply, heating supply, fire protection,medicinal gas, industrial petroleum pipeline system etc.
Standard:Press fitting standard: GB/T 19228.1-2003, DVGW W534-1995 and JWWA G116Pipe standard: GB/T 19228.2-2003, BS EN 10312 and JIS G3448Sealing ring standard: GBT 19228.3-2003, EN681-1:1998
Technical information: --Material: Stainless steel 304/304L and 316/316L available. --Max working pressure 1.6MPa (equal to 232 psi), --Testing water pressure: 2.5MPa for JIS sizes (equal to 362.5psi), and 5MPa for EN10312 sizes.
What kinds of O-Rings are suitable for your choosing ? Option 1. CIIR(Chlorinated butyl rubber): Sanitary for human consumption, not oil resistant. Suitable for drinking water, tap water, hot and cold water, sanitary air. Option 2. EPDM (Ethylene-Propylene Diene Monomer):Sanitary for human consumer, not oil resistant. Suitable for drinking water, tap water, hot and cold water, sanitary air and compressed gas. Option 3: FKM(Fluororubber): It is both oil proof and sanitary. suitable for edible oil, compressed air. But a little more expensive than CIIR, EPDM and NBR.