真空差压阀 vacuum differential valve ; VDV
自力式差压阀 ZZCP
自力式差压阀-铸钢 ZZCP
差压调节阀 [自] differential pressure regulating valve ; differential pressure control valve ; differential pressure
差压延迟阀 DVD Differential Delay Valve ; Differential Delay Valve
压差油阀 [机] differential pressure fuel valve
压差阀活塞 pressure difference valve piston
压差阀柱塞总成 piston assy
压力差动阀 Pressure differential valve ; Pressure plate
要求：压差安全阀必须具有将两个止回阀之间的“区域”压力维持在比供应压力低至少2 P SI的功能。
Requirements: the pressure differential relief valve must operate to maintain the "zone" between the two check valves at least 2 PSI less than the supply pressure.
目的：检测差压安全阀的工作性能。
Purpose: To test operation of pressure differential relief valve.
建立了热力膨胀阀模型，重点建立了流量与阀前后压差及制冷剂进出口干度的关系。
The model of thermal expand valve is built and the connection of flux, pressure difference between the front and behind of the valve and cryogen dryness of inlet and outlet.
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