... widely used in cold and hot water supply, heating supply, fire protection, medicinal gas, industrial petroleum pipeline system etc. ... information:-- Material: Stainless steel 304 and 316L available.-- Max working pressure 1.6MPa (equal to 232 psi), testing water pressure: 2 ... butyl rubber O ring),-- Suit medium: cold water, hot water, compressed air, gas, oil etcSizes range:The norminal diameters are: ...