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The peristaltic pump is used to obtain the required flow rate. Therefore, according to the operation and use of the pump, it is divided into: 1. Speed-regulating peristaltic pump: It has the basic control function of the peristaltic pump, displaying the speed, start and stop, direction, speed adjustment, and filling row. Empty, power-down memory, external control input and other functions.
1. Classification
The peristaltic pump is used to obtain the required flow. Therefore, according to the operation and use of the pump, it is divided into:
1. Speed-regulating peristaltic pump: It has the basic control functions of a peristaltic pump, displaying speed, start and stop, direction, speed adjustment, filling and emptying, power-down memory, external control input and other functions.
2. Flow-type peristaltic pump: In addition to basic functions, functions such as flow display, flow correction, and communication are added.
3. Distributed peristaltic pump: In addition to basic control functions, it adds functions such as flow display, flow correction, communication, liquid volume distribution, suction, and output control.
4. Customized (OEM) peristaltic pump: With a series of pump heads with different flow ranges, customers can design different drive circuits for supporting use according to their own equipment requirements.
2. System composition
The peristaltic pump system consists of three parts: the peristaltic pump driver, the peristaltic pump head, and the peristaltic pump tube.
Third, the selection of the components of the peristaltic pump
Selection tube
As a condition of peristaltic pump hose
Has a certain degree of flexibility, that is, the hose can quickly recover its shape after being compressed in the radial direction
Have a certain ability to withstand pressure
No leakage (good air tightness)
Low adsorption, good temperature resistance, not easy to age, no swelling, corrosion resistance, low precipitation, etc.
Choose pump head
Choice of single or multi-channel fluid delivery
Is it easy to replace the hose
Is it easy to fix the hose
The pressure tube gap is fine-tuned by a ratchet or other means to adapt to different wall thickness hoses or to achieve fine-tuning of pressure
Roller selection: 6-roller structure has a slightly larger relative flow rate; 10-roller structure has a smaller fluid pulsation amplitude
Whether the trigger structure is dexterous and whether it is convenient to open the card
Select drive
Do you need flow control
Do you need liquid volume distribution
What is the size of the flow range
Whether the overall structure is reasonable and whether the operation is convenient
Whether the flow accuracy and liquid volume accuracy meet the requirements
Special requirements: protection level, explosion-proof level, etc.
External control requirements: Peristaltic pump equipment matching, operation mode, etc., such as RS232, RS485 communication, 0-5V external control speed regulation, pulse speed regulation, etc.