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DIAPHRAGM VALVE; NOMINAL SIZE: 4"; PRESSURE: 150 PSI; BODY TYPE: STRAIGHT; BODY MATERIAL: PVC; DIAPHRAGM MATERIAL: EPDM; MOUNTING TYPE: RF FLANGES PER ANSI B16.5; FLUIDS: AIR, WATER, GAS, EFFLUENTS MILD MAXIMUM TEMPERATURE 70 °C; DRIVE TYPE: PNEUMATIC; MARK 1: CHEMLINE;