Unique advantages of precision melt gear metering pump

Precision gear metering pumps are widely used in various fields, including chemical, petroleum, food, pharmaceutical, textile, high-tech, and more. The following are the characteristics of precision gear metering pumps:

1、 High precision measurement

The precision gear metering pump delivers liquid through two meshing gears, and its displacement has a precise mathematical relationship with the size and speed of the gears. Generally speaking, its measurement accuracy can reach around ± 0.5%, which means that the deviation between the actual flow rate and the set flow rate is very small during the liquid transportation process. For example, in chemical production, setting the conveying flow rate of a certain chemical reagent to 100L/h, the actual flow rate will be between 99-101L/h, which can meet the high-precision production process requirements.

2. Good traffic stability

Due to the stable rotation of gears, as long as the driving speed is stable, the precision gear metering pump can provide stable flow output. During the work process, it is not affected by external pressure fluctuations and changes in liquid viscosity (within a certain range). For example, in the pharmaceutical industry, when transporting viscous drug solutions, even if the viscosity of the solution changes due to factors such as temperature, precision gear metering pumps can still maintain a relatively stable flow rate, ensuring accurate drug proportioning.

3、 Can transport multiple media

It can transport various liquids from low viscosity solvents (such as ethanol, acetone, etc.) to high viscosity adhesives, inks, heavy oils, etc. This is because the working principle of gear metering pumps mainly relies on the meshing and rotation of gears to push the liquid. As long as the liquid can be driven by the gears, it can be transported. However, for some liquids containing solid particles, the particle size needs to be within the allowable range of gear clearance, otherwise it may damage the gear or cause blockage.

4、 Compact structure and small footprint

The structural design of precision gear metering pumps is relatively simple and compact. It is mainly composed of pump body, gears, shaft, and seals, and has a relatively small overall volume. On the production line of the factory, such as in the food and beverage production workshop, this compact structure is easy to install and layout. Multiple metering pumps can be installed in a limited space to simultaneously transport and measure different ingredients.

5、 Low pulsation output

Although gears generate certain pulsations during rotation, precision gear metering pumps can control pulsations at a lower level by optimizing gear design and adopting appropriate gear parameters. Compared to some plunger metering pumps, its output liquid flow rate is more stable. In the printing industry, this low pulsation output feature ensures that ink is evenly supplied to the printing plate during the printing process, avoiding a decrease in printing quality caused by fluctuations in ink flow rate.

6、 Good sealing performance

Precision gear metering pumps usually use mechanical seals or packing seals to effectively prevent liquid leakage. When transporting toxic, harmful, and corrosive liquids (such as strong acids and alkalis in the chemical industry), good sealing can ensure the safety of the working environment and prevent liquid leakage from causing harm to operators and equipment. At the same time, it also helps prevent external impurities from entering the pump body and affecting the normal operation of the pump.

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