high pressure safety valve  高压安全阀

low pressure safety valve assembly  低压安全阀总成

low pressure safety valve spring  低压安全阀弹簧

pressure controlled valve  压力调节阀

pressure safety valve  安全阀

pressure-controlled valve  压力控制阀

ball type surface controlled safety valve  地面控制的球型安全阀

velocity-controlled safety valve  流速控制的安全阀

Adjusts pressure valve  调压阀

air pressure valve  空气压力阀; 气压阀

automatic oil-water pressure safety cutout device  油-水压力自动安全停车装置

auxiliary relief valve pressure  备用安全阀压力

BACK PRESSURE VALVE  逆止阀; 背压阀; 回压阀; 止回阀; 向后反射X射线判测法; 单向阀; 反压阀; 止逆阀

back pressure valve(Non-return vale)  羌活; 止回阀; 止逆阀

back-pressure valve  回压阀; 背压阀

brake accumulator charging valve pressure  制动加力器充气阀压力

brake accumulator charging valve pressure check  制动加力器充气阀压力检查

brake control valve pressure switch  制动器控制阀压力开关

brake oil filter relief valve pressure test  制动油滤清器安全阀压力试验