Press the "Start" button, the pump running, then open the suction valve of the pump.
按下水泵“开”按钮，泵即运转；然后打开泵的吸入阀。
Caution: Exercise care to prevent purple primer or solvent cement from running back in the valve to the diaphragm or seating area.
警告：要小心谨慎操作，避免紫色底漆或液状粘固剂流回到阀门内的隔膜或密封区域。
Disc multi-way valve, the use of rotary multi-way valve, stable and reliable running.
盘式多路阀，采用旋转式多路阀，运行稳定可靠。
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