Diaphragm pressure relief valve V86/186

86/186 Back Pressure Regulator The V186 Back Pressure Regulator maintains adequate upstream pressure as upstream pressure reduces from branch line cycling. The V186 may also be used as an inline pressure relief valve. The piston spring keeps the outlet closed until the set point pressure is achieved. Size Range: 20-110mm (½" – 4") Ideal Applications Include: UPW, WFI, RO/DI Systems, Semiconductor, Photovoltaic, Pharmaceutical, Biotech, Institutional, Laboratory Research, Nanotech