弹簧受压差的作用自动控制阀胆上过流面积的大小，从而使通过阀门的流量恒定。
The role of compression springs bad gall on automatic control valve flow area of the size, so that a constant flow through the valve.
曲柄轴箱通风阀和配有废气帽的空气污染控制阀(的使用)对减少挥发性有机混合物释放有积极作用。
The positive crankcase ventilation valve and gas caps with air-pollution control valves reduce volatile organic compound loss.
对于所有元件(流量元件或控制阀除外)，列出了元件预计起作用范围内的实际最小、正常和最大压力与温度？
For all elements other than flow elements or control valves, the true minimum, normal and maximum pressure and temperature ranges over which the element is expected to be effective are shown.
适用于非腐蚀性的液体、气体和蒸汽，在各种加热系统中起温度控制的作用，当被控介质温度升高时，控制阀关闭。
It is suitable for controlling temperature of non-corrosive liquids, gases and vapors in various heating systems. When the temperature of the controlled medium rises, the control valve is closed.
四通 手动控制阀可用于所有气动或液动双作用缸体执行器。
Four-Way Diaphragm Pilot Valves are for use on all double-acting pneumatic cylinder actuators.
四通 手动控制阀可用于所有气动或液动双作用缸体执行器。
Four-Way Diaphragm Pilot Valves are for use on all double-acting pneumatic cylinder actuators.
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