rotary vane compressors 1.low noise 2.used printing,packing,grain processing,sewage processing 3. ... ,porcelain,lamp and lantern manufacturing,and cereals processing etc.2.Technical Data ItemUnitYBW250HCapacitym3/h245Over pressurekPa150Motor powerkw11.0Motor speedr/min960Noise ... leveldB(A)84Inlet port threadG"2 1/2"Weightkg380sizemm1344*612*548 rotary vane compressors