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ANSI/AHRI 770-2007: Performance Rating of Refrigerant Pressure Regulating Valves

Standard Scope
This standard establishes a single set of requirements for the testing and rating of capacity for refrigerant pressure regulating valves for use with refrigerants R-12, R-22, R-134a, R-502, R-404A, and R-717. The standard applies to refrigerant pressure regulating valves controlling volatile refrigerant flow whose primary response is to pressure.

Free Download: ANSI/AHRI Standard 770-2007

© 2007, by Air-Conditioning, Heating and Refrigeration Institute