先导式安全阀(pilot operated safety valve) ： 一种靠从导阀排出介质来驱动或控制的安全阀，该导阀本身应是符合标准要求的直接载荷式安全阀。
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（71）脉冲式安全阀（Pilot operated safety valve） 脉冲式安全阀也称先导式安全阀，由主阀和辅阀组合构成，通过辅阀的先导作用驱动主阀动作。
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... 杠杆重锤式 lever and weight type 引导阀操纵的安全泄气阀 pilot operated safety valve 复式安全泄气阀 twin type safety valve ...
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... 吸入阀限位器 suction valve guard 先导式 安全阀 Pilot operated safety valve 先导式液压阀 Pilot-operated reducing valve ...
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The structure characteristics and operation principium of new type pilot operated all open safety valve under low pressure and vibration working conditions are introduced.
介绍一种在超低压和振动条件下工作的先导式全启安全阀的结构特点及工作原理。
There are four types for PWR pressure-relieving devices: direct acting safety valve, pilot-operated pressure relief valve, power-operated pressure relief valve and safety valve with auxiliaries.
PWR的压力释放装置主要有四种类型：直接作用式安全阀、先导操作压力释放阀、动力作用式压力释放阀和具有辅助装置的安全阀。
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