... magnetic material.The pressure reducing valve of oil supply system can insure constant pressure when changing of low.There ... and bimetal thermometer, air purifier, sampling valves, oil drainage valve an so on.Thin oil lubrication equipment, electrical control ... Conditions:Elevation: ≤1,000 metersPower: Three-phase four-wire system AC380V/220VFluctuations≤10%;50Hz, Fluctuations≤1%Ambient Temperature: (0 ...