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Metering pump before use precautions

metering pump before use precautions
1, metering pump and 10W-40 oil or ordinary oil before use. (For example, using hydraulic pressure diaphragm type measurement pump, then add hydraulic oil in the hydraulic Chamber)
2, metering pump wiring motor wiring must be in accordance with the nameplate of the motor voltage (380V or 220V)
3, metering pump power must be unobstructed to ensure export pipeline (valve fully open).
4, stainless steel welded pipe joints when not piping or weld slag or debris fall into the valve body (which will cause the metering pump without water, little pressure or flow becomes smaller)
5, metering pump to stop working to close the metering pump, close the outlet valve.
6, export pipe pressure should be higher than the inlet pressure, if lower than the inlet pressure, back pressure valve must be installed to prevent siphoning.
7, export pipe diameter must be greater than or equal to the standard diameter of metering pump.

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