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 6110-01-249-5038
NSN 6610-01-075-8755
NSN 5895-00-940-9144
NSN 5965-01-119-1898
NSN 4140-00-179-3977
NSN 6685-00-435-8097
NSN 5960-01-340-1641
NSN 5915-01-027-8158
NSN 6220-01-658-0175
NSN 5910-01-560-4230
NSN 5996-01-156-1526
NSN 5999-01-247-9020