Farmington Engineering Inc. is one of the leading designers and manufacturers of expansion Cv Plugs, Rv plugs, SAE threaded plugs, flow Cv Restrictors and solenoid valves. Its solenoid valves find applications in plumbing, automotive, medical/dental, general fluid power, beverage, refrigeration and commercial washing equipment. Expansion Cv Restrictors design have calibrated orifice, stainless steel and optional filter screens. It is an ISO 9001:2000 certified firm. Farmington Engineering Inc. s product includes pump motors, rebuilding kits, electronic connectors, BSP threaded fittings and several others. .