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How to select peristaltic pump?

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Browse:1932   Update time:2017-09-19 15:45:00
First.the flow: to confirm your own limit flow rate (maximum and minimum) and select pump type according to your requirements. You need to consider below factors when selecting the pump:
1. All peristaltic pump flow data are all tested in clear water and the medium will have impact on flow rate. For high viscosity liquid, high solid-content of liquid, poor fluidity of liquid, the actual flow and marked flow will have a great decay!
2. the flow parameters are tested in the water under the condition of micro head lift and suction.  If suction is too long, the flow rate will decline and the flow loss of head lift is small.

3.the required flow rate should be within the limit flow. In the actual selection, especially for long-term-operation pump, we strongly recommend that the pump at low speed can meet the flow requirements (≤ 300rpm). Long-term high-speed operation, will reduce the pump life, and wear out the tubing soon, which is consumable and expensive.

Second.confirm complete peristaltic pump or OEM.

1.the complete pump, a standardized product , with a set of complete function, will run when access to power supply; OEMs are generally processing products, or accessories, so users need to have the appropriate expertise, installed OEMs on their own equipment to run equipment.
2.the complete pump, a standardized product , with a set of complete function, will run when access to power supply; OEMs are generally processing products, or accessories, so users need to have the appropriate expertise, installed OEMs on their own equipment to run equipment.
For OEMs you need to consider more factors, such as price, flow rate, functions, motor, tubing, power supply and so on. We provide a variety of power levels, generally divided into alternating current and DC, in which AC is divided into single-phase civilian power and three-phase power and DC is generally divided into 6/12 / 24V DC. The DC motor will run when accesses to the corresponding DC power supply. Furthermore, positive and negative only have impact on the motor direction and Although the direction is wrong, the pump will not be burned. 
Stepper motor and brushless motor in the peristaltic pump is very widely used, and they must access to the corresponding drive to run. Ordinary DC motor can adjust speed within a narrow range, and stepper motor can adjust speed within a wide range.  Please note the circuit board will be burned when negative and positive is wrong.
Third, pump head

Pump heads are core components, you have to select it according to the requirements. They are generally divided into quick loading, easy loading and spring type pump head. Quick loading type is generally used for OEM products, easy loading type is widely used in the complete pump; Spring type have some applications in the OEM and the complete pump. Each pump head has its limit flow rate, and each pump head is only suitable for loading one wall thickness tubing.

Forth. the tubing 

Peristaltic pump tubing is a professional tubing. And its size, material, resilience, hardness design all have very strict technical requirements!
1.Please select pump tubing according to chemical liquid of pumped liquid, especially corrosive liquid. There are mainly domestic or imported tubing in the market, in which the domestic tubing is made of silicone rubber and can resist chemical corrosion and for more requirement, users have to rely on imported tubing. According to the chemical quality, the users can select the tubing material. For details, please refer to Pump Tubing Resistance Chemical Compatibility Table. And our product engineers will provide accurate recommendation on the base of your chemical component.
2.The general domestic silicone life is usually more than 500 hours (300rpm, medium; lean water, room temperature), the life of imported tubing such as long-life tubing, can be up to 10,000 hours.
3.The general domestic silicone life is usually more than 500 hours (300rpm, medium; lean water, room temperature), the life of imported tubing such as long-life tubing, can be up to 10,000 hours.

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