Nanjing Runze Fluid Control Equipment Co., LTD.
Nanjing Runze Fluid Control Equipment Co., LTD.
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Excellent Performance of Peristaltic Metering Pump

The transmission accuracy of peristaltic pump determines the working efficiency no matter which industry it is used in. To determine the transmission accuracy of peristaltic pump, a good peristaltic pump body, pump head and hose are required. Peristaltic pump, also known as hose pump, is widely used in chemical industry, environmental protection, scientific research, pharmacy, food, printing and other fields. Peristaltic metering pump is a section of pump pipe between two rotating rollers to form "pillow" fluid. The volume of the "pillow" depends on the inner diameter of the pump pipe and the geometric characteristics of the rotor.


1. Characteristics of peristaltic metering pump


The peristaltic metering pump has simple structure and is easy to be manufactured. The service life and durability of peristaltic metering pump mainly depend on the elasticity and corrosion resistance of the pipe. Its flow is related to the speed of the motor and the inner diameter of the pipe. Therefore, the key of peristaltic metering pump is to select the pipe and speed control mechanism. As long as the pipe has long enough service life and stable speed, the quantitative transportation can be maintained for a long time.


When dealing with the fluid of peristaltic metering pump, the hose should show certain excellent chemical properties, that is, chemical compatibility such as low adsorption, good temperature resistance, durability, no swelling, corrosion resistance, and low precipitates. The chemical corrosion resistance decreases with the temperature rise. Chemicals that have no effect on the pipe at room temperature may affect the hose with the temperature rise.


2. Uniqueness of peristaltic metering pump


Peristaltic metering pump has many unique features: it has better self-priming ability and can almost produce vacuum to absorb liquid. It can convey gas-liquid and foam liquid without gas resistance. Transporting high viscosity and shear sensitive media is also its strong point. It has a fixed displacement per revolution and has nothing to do with the outlet pressure. So it is a natural metering pump. Due to its various advantages, peristaltic metering pump is increasingly used in gold smelting, nonferrous smelting, chemical industry, mining, food processing, brewing, ceramics, water treatment and other industries.

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