heat back-water valve 加热回水阀
direct cooling back-water valve 直冷回水阀
Here the air and water discharged from the return valve to the back entrance of the impeller.
在这里空气排出而水又从回流阀返回到叶轮入口。
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。
The brine refill system on the control valve is not allowing enough water back into the brine tank.
控制阀上面的补水系统没有向盐箱中补足够多的水。
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