Chemline SB12A005VU Back Pressure Relief Valve

Chemline SB12A005VU is a 1/2-inch connection, PVC-bodied back pressure/relief valve from the SB12 Series. It features union socket ends for leak-free installation and Viton (FPM) seals, making it compatible with aggressive chemical liquids. Installed inline downstream of a dosing pump, it maintains downstream pressure by acting as a back pressure valve and provides relief at a user-adjustable setpoint from 5 to 150 psi. The True Union design ensures straightforward assembly and disassembly without disturbing the piping, essential for maintenance in chemical dosing and transfer lines. The SB12A005VU configuration, PVC body with FPM seals, is common in PVC piping systems handling oxidizers, acids, and caustic solutions where dependable pressure control is needed in compact, corrosion-resistant equipment. Typical applications include chemical dosing systems, water treatment dosing lines, and other inline processes requiring precise downstream pressure control in PVC services.