Self Actuating Pilot Operated Automatic Control Valve with flanged or screwed end is used for various types of functions like on/off, pressure reducing, pressure relief, flow control, pump bypass etc. Self Actuating Pilot Operated Automatic Control Valve is manufactured by Flow-tek Valves and Controls which is an ISO 9001:2000 accredited company. Flow-tek Valves and Controls also manufacture various types of valves. The Self Actuating Pilot Operated Automatic Control Valve is available in sizes ranging from 1/2" to 12". This Control Valve has body made of cast iron, cast steel, stainless steel and gun metal.