This is a 4 inch valve. It has a light spring. Similar to p/n 740005-091which has a medium valve.
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 6105-00-339-2921
NSN 6620-01-286-2204
NSN 6685-00-638-9261
NSN 5999-01-265-7037
NSN 6135-01-579-3534
NSN 6150-01-360-1516
NSN 5920-01-393-5460
NSN 5985-01-220-6384
NSN 5975-01-310-8848
NSN 6135-00-840-6451
NSN 5975-01-541-2551
NSN 6220-00-650-4216