... equipment is composed of oil tank, oil pump, oil cooler, valves, filter, pipes and instrument panel and so on.Equipped with ... , oil leveler, electrical contacts and bimetal thermometer, air purifier, sampling valves, oil drainage valve an so on.Thin oil lubrication equipment ... out by oil pump from oil tank and goes through shut-off valve, filter, oil cooler, duplex tank mesh filter, then directly ...