... used for pipe connection characterized of simple installation and reliable performance.Under low pressure,the sealng is ... , tee, cross, reducer, cap, mechanical tee, mechanical cross, flange adaptorStandardANSI, ASTM, DIN, JIS, GB, BS, etc.TypeManufacturerSize1/2 ... Automatic sprinkler system for fire protection on commercial, civil and municipal constructions like water supplying, gas supplying, heat ...