Unloader Valve, Brass, 3/8" FPT Inlet, 3/8" FPT Outlet, 1/4" FPT Bypass and Gauge Ports, 3.35 to 5.00 GPM, 500-3600 PSI

Pressure Activated

ST261I Pressure Activated Unloader Valve with chemical injection feature. Adjustable design allows for setting on both maximum and minimum pressures. Brass body with Teflon and Viton® seals for heat and chemical resistance. Rated from 500 to 3600 PSI and 176° F. 3/8" FPT inlet and outlet ports. 1/4" FPT bypass and gauge ports. Injection feature allows for use with high/low wand assemblies to inject chemicals downstream of the pump.