Bl This standard establishes the dimensions and characteristics of brass service valves used in refrigeration equipment compressors. B-2 The valves considered in this standard are suitable for service with sulfur dioxide or chlorinated or chlorofluorinated derivatives of hydrocarbons at a maximum working pressure of 25 kg/cm2 and a maximum temperature of 100 C.
IRAM 2558-1961 history
1961IRAM 2558-1961 Compressor valves in refrigeration valves. Series 25