AR21040 Mini-Matic 4/B

The AR21040 Bolt on Regulating Valve is the Unloader valve for RC, XT and XM Series AR Annovi-Reverberi pressure pumps.This AR21040 Unloader features a bolt on design with an internal by-pass system.This series unloader allows the adjustable pressure to release pressure in the pump head when in the by-pass mode protecting the pump over pressurization.This series unloader eliminates the need for a by-pass hose and fitting having to be installed on the pressure pump.The Mini-Matic 4/B Unloader can be order with either a fixed chemical injector or a fixed chemical injector.The molded plastic adjusting knob is designed for user comfort.The AR Mini-Matic 4/B Series Unloader valve comes with a standard brass body, stainless steel plunger and spring with either a aluminum or brass by-pass fitting depending on the specific unloader.