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AHRI 770-2001
M00003994
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AHRI 770-2001 Refrigerant Pressure Regulating Valves
standard by Air-Conditioning, Heating, and Refrigeration Institute (formerly ARI), 01/01/2001
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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.