oil pressure relief valve
油压卸压阀
油压泄压阀
油压泄放阀
油压安全阀
机油减压器
governor oil pressure device
Pneumatic proportional pressure relief valve
pressure relief valve
减压阀
泄压阀
压力释放阀
卸压阀
减压安全阀
压力排放阀
安全阀
释压瓣
释压阀
油层压力
proportion pressure relief valve
balanced-piston governor valve
electro-hydraulic proportional governor valve
accumulator oil pressure
actuator oil pressure output check
additional safeguard oil pressure
bearing oil pressure trip device
Centrifugal oil pressure
dynamic and static pressure oil film bearings