Export pump with check valve, it will immediately turn off to prevent reverse flow back high-pressure water pump.
水泵出口装有逆止阀时，它会立即关闭，防止高压水反向流回水泵。
According to flow in a different, balanced spool valve the pressure can be pre-pressure, can also be a back pressure valve.
根据流向不同，平衡阀芯所受的压力可以是阀前压力，也可以是阀后压力。
Venous blood within the valve to help the leg from a single direction of flow back from the heart.
在阀门静脉血帮助脚倒流的单一方向发自内心的。
Of large air-conditioning system, using the manual control valve regulating the complex process of manually adjusting the front-end valves, back-flow will be affected.
对大型空调系统而言，采用手动调节阀调节过程复杂，手动调节前端阀门，后端流量会受影响。
The key of calculation and selection of the valve is to select the correct flow value and the differential pressure value between the valve front and back for calculation.
在阀径计算和选型时关键在于正确选取用于计算的流量值和阀前后差压。
The filter member includes a filtering part to filter oil, a second orifice to rectify oil flow, and a check valve to permit oil to flow back when braking operation is released.
该过滤器的成员包括一个过滤器的一部分石油，第二个孔，以纠正油流，单向阀，允许石油回流时，制动操作释放。
All Stenner metering pumps have a 3-point roller design in the pump head, which ACTS as a check valve to prevent back flow, siphoning, overdosing and loss of prime.
泵头有3点滚筒设计，设备可作为止回阀阻止回流，虹吸，过量用药和避免大量的材料损失等。
Move flame back and forth as alloy is drawn into joint. When the proper temperature is reached alloy will flow readily into space between tube outer wall and valve socket.
达到适当的温度后，合金将迅速容易地流进管道外壳和阀门套管之间的空间。
Move flame back and forth as alloy is drawn into joint. When the proper temperature is reached alloy will flow readily into space between tube outer wall and valve socket.
达到适当的温度后，合金将迅速容易地流进管道外壳和阀门套管之间的空间。
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