Caleffi 519502A Differential Pressure Bypass Valve

Differential Pressure Bypass Valve; Type Differential Pressure Bypass Valve; Nominal Size 3/4 Inch; End Connection Female Threaded Union x Male Threaded Union; Body Material Brass; Temperature Rating 32 to 230 Deg F; Pressure Rating 150 PSI; Inclusions/Features Brass Valve Plug, EPDM Valve Plug Gasket, EPDM O-Ring Seal, Asbestos Free NBR Union Seal, ABS Plastic Control Knob, Stainless Steel Spring; Application Fixed Speed Circulating Pump; Applicable Standard ISO 9001, FM 21654, BSI; Flow Rating up to 9 GPM