Self Regulating Pilot Operated Pressure Reducing Valve with screwed and flanged end is ideal for low and medium pressure, steam, gas and air. Self Regulating Pilot Operated Pressure Reducing Valve is offered by Flow-tek Valves and Controls which is an ISO 9001:2000 certified company. Flow-tek Valves and Controls also manufacture various types of valves. The Self Regulating Pilot Operated Pressure Reducing Valve has size ranging from 1/2" to 4". This Pressure Reducing Valve has stainless steel diaphragm.