Mfr's name is "pressure control"
A value designed to automatically maintain within close limits a predetermined pressure within a closed system regardless of the higher fluctuating or constant inlet pressure. The excess pressure is by-passed to the accumulator or reservoir in lieu of passing through the entire system. It is designed primarily for use in refrigeration and air conditioning systems. Excludes valve, regulating, fluid pressure and valve, calibrated flow.
Classification: Regulator valves, self-operating, for controlling variables such as temperature, pressure, flow and liquid level
NSN 5925-00-826-8813
NSN 5835-00-284-0882
NSN 2925-01-590-3981
NSN 6220-01-213-3210
NSN 5935-00-103-1660
NSN 6135-01-370-2599
NSN 5915-00-816-9056
NSN 5930-01-569-9554
NSN 5998-00-782-0414
NSN 7035-01-322-8180
NSN 6320-00-731-6134
NSN 5920-00-503-1858