JB/T 7255-1994 (English Version) PDF

Scope: This standard specifies the types and basic parameters, technical requirements, test methods, inspection rules, product complete sets and use guarantees, marking, packaging, transportation and storage of water ring vacuum pumps and water ring compressors (collectively referred to as water ring pumps when not distinguished). . This standard applies to water ring pumps with a suction or delivery temperature of -10 to 40°C, a working water temperature of 0 to 35°C, no solid particles, and no corrosive gases. For water ring pumps that suck or pressure corrosive gases and use other non-aqueous liquids as the working liquid ring, you can refer to it.

JB/T 7255-1994 history