The metering pump produced by the metering pump manufacturer plays a crucial role in the accurate measurement and transportation of liquids and gases as a key industrial equipment. It can not only improve production efficiency and ensure product quality, but also reduce labor costs and intensity in the production process, making it an indispensable equipment in industrial production. With the continuous development of technology, metering pumps will further improve their performance and functionality, providing better support and guarantee for the development of various industries.

Metering pumps have a wide range of applications in industries such as chemical, pharmaceutical, and food. In the field of chemical engineering, metering pumps are commonly used to transport chemicals, liquid mixtures, solvents, etc. Their high-precision metering capability ensures the stability and accuracy of the production process. In the field of medicine, metering pumps are commonly used to transport drugs, medical liquids, etc. Their reliability and accuracy ensure the quality and safety of pharmaceutical production. In the food industry, metering pumps are commonly used to transport food additives, spices, sauces, etc. Their hygiene and accuracy ensure the safety and quality of food production.

What are the common faults and solutions of metering pumps that are popular among metering pump manufacturers?

The electric motor cannot start

Reason for malfunction: No power supply, power failure in one or two phases, blown fuse, poor contact of contactor.

Solution: Check the power supply status to ensure that the power supply is functioning properly; Check if the fuse and contactor contacts are in good condition, and replace or repair them if there are any problems.

Not draining or insufficient draining volume

Reason for malfunction: blockage of suction pipe, unopened suction pipe valve, air leakage in suction pipe, long and sharp turns of suction pipe, damage to suction or discharge valve, residual air in diaphragm chamber, impurities in oil replenishment system, abnormal operation of safety valve or compensating valve, severe leakage at plunger packing, insufficient or unstable motor speed, low suction liquid level.

Solution: Check and clean the suction pipe and filter to ensure they are unobstructed; Open the valve, check and repair the leaking area; Thicken the suction pipe to reduce sharp turns; Inspect and replace damaged valves and valve seats; Refill the oil and release the gas; Replace with clean oil; Adjust the packing gland or replace with new packing; Stabilize the motor speed; Adjust the suction liquid level height.

The pressure of the pump cannot meet the performance parameters

Reason for malfunction: The suction and discharge valves are damaged, the plunger packing is severely leaking, and the diaphragm or discharge pipe joint is not tightly sealed.

Solution: Replace the valve with a new one, adjust the packing gland or replace the packing with a new one, identify the leaking part and seal it tightly.

Decreased measurement accuracy

Reason for malfunction: blockage of suction pipe, unopened suction pipeline valve, air leakage in suction pipeline, damage to suction or discharge valve, residual air in diaphragm chamber, impurities in oil replenishment system, abnormal operation of safety valve or compensating valve, severe leakage at plunger packing, insufficient or unstable motor speed, low suction liquid level, plunger zero offset.

Solution: Same as the above solution of not draining or insufficient draining volume, and readjust the plunger zero point.

Parts overheating

Reason for malfunction: Excessive or insufficient oil in the transmission mechanism oil tank, impurities in the oil, poor lubrication of each moving pair, and too tight packing pressure.

Solution: Replace with new oil and adjust the oil level to the appropriate level; Check and clean all oil holes; Adjust the packing gland.

In the industrial production process, metering pumps play a very important role. It can be widely used in the fields of fluid transportation and measurement in industries such as chemical, petroleum, food, and medicine. For example, in chemical production, metering pumps can accurately measure and transport liquid raw materials, chemical reagents, etc., ensuring product quality and production efficiency; In the petroleum industry, metering pumps can be used for the transportation and refueling of oil products, ensuring accurate metering and production safety of petroleum products; In the food industry, metering pumps can be used for conveying and measuring food additives, seasonings, etc., ensuring food quality and safety. In short, metering pumps play an important role in various industrial fields and are one of the indispensable equipment in industrial production.

The working principle of a metering pump is to transport liquid or gas from a lower pressure area to a higher pressure area through working components such as plungers and screws, achieving accurate metering and transportation of fluids. A metering pump is usually composed of pump head, motor, transmission device, control system and other components. Different types of metering pumps have different structures and working principles. Common metering pumps include plunger pumps, gear pumps, screw pumps, etc.