มอก. 1252-2537

Scope (English)

Covers single-acting air-cooled reciprocating air compressors combined with electric motors with a rated output or with a continuous rated power of not more than 11 kW, having an ambient working temperature in the range of -15 to 40 C. Classifies compressors into 2 types, i.e. feed-oil and non-feed-oil, and into 2 categories, i.e. single-stage and two-stage. Specifies rated output or continuous rated power of electric driving motor with respect to the maximum pressure of the compressor, main components, materials for making compressor parts (e.g. cylinder cover, crankshaft, connecting rod, valve plate, etc.), construction (e.g. compressor main body, internal combustion engine, air tank, bed, etc.). Prescribes requirements for workmanship, air volume, performance, hydraulic-pressure resistance, pressure drop, pressure switch or automatic unloader, safety valve. Includes marking, labelling, sampling and criteria for conformity, testing.