Troubleshooting of hydraulic diaphragm metering pump of water pump

Troubleshooting of hydraulic diaphragm metering pumps of water water pump manufacturers. Reasons and solutions for hydraulic diaphragm metering pumps that do not or are insufficiently loaded. Diaphragm failure or check valve blockage. If the pump is not loaded or the amount is insufficient, check the check valve first Whether it is blocked or whether the outer diaphragm fails. During the inspection, first remove the valve body of the pump head check valve, start the motor, and adjust the plunger stroke to observe whether the diaphragm movement amplitude changes. If the diaphragm changes with the plunger stroke size, it indicates that the diaphragm is intact . Then inject water into the one-way valve. If the water cannot enter from the inlet or flow out from the outlet, the one-way valve is blocked and needs to be cleaned; if water can flow in from the outlet and flow out of the inlet, the one-way valve is installed reversely. Needs adjustment. Blockage of the one-way valve is quite common because there are too many impurities in the NSI batching process. The solution is to change the pump inlet pipe from the bottom of the batching tank to from the wall of the tank, increase the height of the pipeline, so that the impurities are deposited on the bottom of the tank, and then discharged regularly. u003c/pu003e
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