Minimum allowable values of energy efficiency and energy efficiency grades for displacement air compressors specified the energy efficiency grade, energy efficiency limit value and test and calculation method of positive displacement air compressor . This standard applies to:
①General-purpose oil-injected rotary air compressors with a driving motor power of 1.5-630kW and an exhaust pressure of 0.25-1.4MPa (including general-purpose oil-injected screw air compressors, general-purpose oil-injected single-screw air compressors, general Oil-injected vane air compressors and oil-injected scroll air compressors in general);
②General-purpose variable-speed oil-injected rotary air compressors with a driving motor power of 2.2-315kW and an exhaust pressure of 0.25-1.4MPa (including general-purpose variable-frequency oil-injected screw air compressors and integrated permanent magnet variable-frequency screw air compressors) );
③General-purpose reciprocating piston air compressors (including miniature reciprocating piston air compressors and general-purpose fixed reciprocating piston air compressors) with a driving motor power of 0.75-75kW and an exhaust pressure of 0.25-1.4MPa;
④A full oil-free reciprocating piston air compressor with a driving motor power of 0.55-22kW and an exhaust pressure of 0.4-1.4MPa;
⑤Direct Portable Reciprocating Piston Air Compressor.
