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.
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。
Introduces the working principle and the method of the selection about the type ZY47 Valve controlled by the pressure difference, and analyses its adaption condition.
介绍了ZY 47型自力式压差控制阀的工作原理和选型方法，分析了不同被控环路系统的适用条件。
When the pressure difference changes with time, a phase shift will occur between the transient pressure difference and displace of valve flap, which could cause leakage and even reverse flow.
当阀片两侧的压差随时间变化时，阀片的启闭与压差的变化之间存在一定的相位差，有可能引起泄漏甚至反向流动。
Our main products include solenoid valve, thermostatic expansion valve, sight glasses, filter dryer, pressure controller, pressure difference controller , temperature controller.
公司主要产品为电磁阀、热力膨胀阀、视液镜、干燥过滤器及压力、压差控制器。
In this paper the static stress distribution of closed valve during diastole under the peak across valve pressure difference is analyzed with nonlinear finite element method.
用有限元数值方法计算了在心室舒张期瓣膜关闭瞬时峰值跨瓣压差作用下的静态应力分布。
The intensity of the murmur reflects the size of the valvular leak, the acoustic properties of the chest, and the pressure difference across the valve.
其强度提示瓣膜泄漏面积、胸腔声学特征、及穿过瓣膜的压力差异。
Using the pressure difference formed by pressure difference regulating valve, overcome flow resistance of refrigerant in evaporater, supply excess low pressure liquid refrigerant for evaporater.
用压差调节阀形成的压差克服蒸发器内制冷剂的流动阻力，把低压液体制冷剂超量供入蒸发器。
Performance experiments about ZY47 pressure -difference control valve and ZL47 flux control valve have been done, based on their structure and work principle, presented the method of type selection.
对ZY 47型自力式压差控制阀和ZL47型流量控制阀进行了性能实验，并依据它们的结构特点和工作原理，提出了选型方法。
Solenoid valve flow coefficient generally small, and the work of a very small pressure difference.
电磁阀一般流通系数很小，而且工作压力差很小。
The utility model discloses a large pressure difference professional valve which is suitable for work conditions with high temperature and pressure.
本实用新型公开一种适用于高温高压工况下使用的大压差专业阀门。
Working pressure is the hydraulic pressure control valve before the working hydraulic control valve back pressure minus the difference.
工作压差是指水力控制阀前的工作压力减去水力控制阀出口背压的差值。
The method solved the problem of invariable pressure difference when the valve was tested.
该方法解决了电液比例方向阀稳态流量特性测试中保持阀压降恒定的问题。
The difference between leak rate and rate of pressure rise of high vacuum pneumatic operation baffle valve is analyzed.
本文通过高真空气动挡板阀的数据分析来说明漏率和升压率在高真空范围内二者之间的差异。
There is difference attitude about whether it is necessary to open all the governing valve in sliding pressure operating mode.
滑压调节时是否有必要全开所有的调节阀，还是可以仅仅全开部分的调节阀运行，国内在理论上对此存在着分歧。
There is difference attitude about whether it is necessary to open all the governing valve in sliding pressure operating mode.
滑压调节时是否有必要全开所有的调节阀，还是可以仅仅全开部分的调节阀运行，国内在理论上对此存在着分歧。
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