Cheap Peristaltic Pump
Flow range:0.0053-6000ml/min
2.Basic peristaltic pump:LabM series
Flow range:0.0053-3100ml/min
3.Industrial peristaltic pump
Speed range:0.1-600rpm
Description
Technical Parameters
Cheap peristaltic pumps do exist on the market, but they need to be selected with attention to their performance and reliability to ensure that they meet the needs of practical applications.
The price of this device is usually low, but the specific price varies by brand, model, configuration, and should be balanced according to the budget and application needs. Although the price is low, the basic performance of the equipment such as flow control accuracy, pressure stability and sealing still needs to meet the requirements. Therefore, when selecting, its performance should be comprehensively evaluated. Some well-known brands may offer more cost-effective products, but the price may still be higher than some cheaper brands, however, the products of well-known brands are usually more guaranteed in terms of quality and after-sales service. The domestic ones may be more advantageous in price, while the imported ones may be more advanced in technology and performance. However, in recent years, with the development of domestic manufacturing industry, the performance and quality of domestic peristaltic pumps are also constantly improving.
Before purchasing, we should compare different brands, models and configurations of peristaltic pump products to find the most cost-effective option; Choose brands and suppliers with good after-sales service to ensure timely technical support and maintenance services during use; Despite the lower price, product quality should still be the first priority, and certified, reliable quality products should be selected to ensure their stability and safety during use.
Parameter
Application scenario and selection
Application scenario
Laboratory Application
Cheap peristaltic pumps are often used in laboratories for small flow liquid transfer, specimen decolorization, perfusion, etc.
It is suitable for cell tissue transportation, liquid chromatographic analysis and acidic or alkaline solution transportation in scientific research laboratories.
Teaching Demonstration
In the field of education, inexpensive peristaltic pumps can be used for teaching demonstrations to help students understand how peristaltic pumps work and their applications.
Simple fluid transfer
In some simple fluid transport applications, such as liquid distribution on small production lines, liquid circulation in cleaning equipment, etc., inexpensive equipment can also play a good role.
Home DIY
For some home DIY enthusiasts, inexpensive equipment can be used for homemade fish tank filters, automatic irrigation systems, and more.
Choose suggestions
Clear requirements:
Before choosing a cheap peristaltic pump, we must first clarify our needs, including flow, pressure, transport media, etc.
Select the right model and specification according to the requirements to avoid failure to meet the requirements after purchase.
Focus on performance:
Although the price is cheap, the performance should be put first.
Pay attention to the flow control accuracy, pressure stability, sealing and other key performance indicators of peristaltic pump.
Brand and reputation:
Choose well-known brands or suppliers with good reputation to ensure product quality and after-sales service.
You can learn about brand and product word-of-mouth by checking user reviews and consulting professionals.
Price and cost performance:
Under the premise of meeting the performance and demand, considering the price factor, choose cost-effective products.
Pay attention to avoid blindly pursuing low prices while ignoring product quality and performance.
After-sales service:
Understand the supplier's after-sales service policy, including warranty period, repair service, etc.
Choose suppliers that provide perfect after-sales service to ensure timely technical support and maintenance services during use.
Ease of use and maintenance:
Consider the ease of use and maintenance costs of peristaltic pumps.
Choose a peristaltic pump that is simple to operate and easy to maintain to reduce the difficulty of operation and maintenance costs during use.
Electrical control system
Basic components of electrical control system
The electrical control system of peristaltic pump is usually composed of switches, control panels (or touch screens), sensors, motor drivers and other components. These components work together to achieve complete control of the peristaltic pump.
Switch: Used to control the start and stop of peristaltic pump.
Control panel/touch screen: provides a user interface for setting pump speed, flow and other parameters, and display pump working status.
Sensor: Used to monitor the working state of the pump, such as speed, flow, pressure, etc., and feed this information to the control system.
Motor driver: receives instructions from the control system to drive the motor to rotate at the specified speed and direction, thereby driving the roller in the pump head to rotate.
The functional characteristics of the electrical control system
Precise control
The electrical control system can precisely control the speed and direction of the motor, so as to achieve accurate adjustment of the peristaltic pump flow.
Display and feedback
The control panel or touch screen will display the pump's working status, speed, flow and other parameters, which is convenient for users to monitor and adjust in real time.
Protection function
The electrical control system usually has overload protection, short circuit protection and other functions, which can automatically cut off the power supply when the motor is overloaded or the circuit is short circuit to protect the safety of the equipment and users.
Communication and remote control
The electrical control system of some cheap peristaltic pumps also supports communication functions, which can be connected with other devices or upper computers through serial ports, Ethernet and other ways to achieve remote control and data transmission.
Electrical control system maintenance and maintenance
Regular inspection
Regularly check the connection lines, switches, sensors and other components of the electrical control system are in good condition to ensure that there is no loosening, damage or aging.
Clean and dust-proof
Keep the electrical control system clean to avoid dust and dirt entering the control system, affecting the control accuracy and stability.
Moisture and corrosion protection
For peristaltic pumps installed in wet or corrosive environments, moisture and corrosion protection measures need to be taken to protect the safety of the electrical control system.
Precautions
Compatibility
When choosing a peristaltic pump with a lower price, it is necessary to ensure that its electrical control system is compatible with the user's power supply and control system.
Safety
The electrical control system should have good safety performance, such as overload protection, short circuit protection, etc., to ensure the safety of equipment and users.
Reliability
The electrical control system should have high reliability and be able to maintain stability and accuracy in the case of continuous work for a long time.
Common faults and solutions
Power failure
Power line damage: The power line may be damaged due to long-term use, external pull or aging, resulting in the peristaltic pump can not start normally.
Power socket problem: Poor contact or damage to the power socket may also lead to the peristaltic pump can not get a stable power supply.
The control panel is faulty
Display anomaly: The display on the control panel may have garbled characters, no display or inaccurate display, which affects the user's monitoring of the working status of the peristaltic pump.
Key failure: The keys on the control panel may fail due to prolonged use, dust accumulation or damage, resulting in the user's inability to accurately control the peristaltic pump.
The sensor is faulty
Speed sensor failure: The speed sensor may not accurately detect the speed of the peristaltic pump due to damage or aging, resulting in inaccurate flow control.
Flow sensor failure: The flow sensor may not accurately detect the flow of the peristaltic pump due to blockage, damage or aging, affecting the user's accurate control of the flow.
Motor driver failure
Drive damage: The motor drive may be damaged due to overload, short circuit or aging, causing the peristaltic pump to not start or operate normally.
Abnormal drive signal: the motor driver may not work normally due to the abnormal drive signal received, affecting the speed and flow control of the peristaltic pump.
Communication failure
Communication line problems: The communication line between the electrical control system of the peristaltic pump and other equipment or the upper computer may fail due to damage, aging or poor contact.
Communication protocol mismatch: the electrical control system of the peristaltic pump may not match the communication protocol of other devices or the upper computer, resulting in the inability to achieve remote control and data transmission.
Other common faults
Blown fuse: The fuse in the electrical control system may be blown due to overload or short circuit, resulting in the peristaltic pump can not obtain power supply.
Circuit short circuit: The circuit in the electrical control system may be short-circuited due to aging, damage or poor contact, affecting the normal operation of the peristaltic pump.
Solutions and suggestions
Regular inspection and maintenance: Check and maintain the electric control system of peristaltic pump regularly, including the cleaning, fastening and replacement of power lines, sockets, control panels, sensors, motor drivers and other components.
Use high quality accessories: Choose high quality accessories such as power cords, sockets, sensors and motor drivers to improve the stability and reliability of peristaltic pumps.
Follow the correct operation mode: Operate according to the operating instructions and operating procedures of the peristaltic pump to avoid the failure caused by improper operation.
Timely maintenance and replacement: Once the electrical control system is found to be faulty, professional maintenance personnel should be contacted in time to repair or replace the damaged parts.
Precautions for purchase
Performance parameter matching
Flow range
Define the minimum and maximum traffic requirements for the usage scenario. For example, laboratory micro reagent addition needs to choose the range of 0.001-10mL/min, while industrial gluing may require 100-5000mL/min.
Example: For accurate delivery of 0.5mL/min liquid, the model with flow accuracy ≤±1% should be selected.
Pressure and head
The higher the viscosity of the liquid, the greater the pressure required. Water-based solutions typically require 0.1-0.3MPa, while high-viscosity fluids (such as honey) may require 0.5-1 mpa.
Note: If it is necessary to transport liquid at a height of 1 meter vertically, ensure that the pump head is ≥0.1MPa.
Speed regulation
The adjustable speed range directly affects the accuracy of flow control. You are advised to select the 0-300 RPM adjustable model to suit different application scenarios.
Material durability
Pump head material
PPSU/PEEK: Strong corrosion resistance, suitable for acid-base solutions (such as laboratory waste liquid treatment).
Aluminum alloy: cost-effective, but avoid contact with strong oxidants (such as concentrated sulfuric acid).
304 stainless steel: strong versatility, suitable for food, pharmaceutical industry.
Hose material
Silicone tube: Good biocompatibility, suitable for medical applications.
Fluorine rubber pipe: high temperature resistance (≤200℃), suitable for chemical industry.
Avoid use: PVC pipe is easy to swell in organic solvents, resulting in reduced performance.
The actual function adaptation
Control mode
Foot switch: Suitable for scenarios that require manual flow control (such as laboratory titration).
Timing: preset flow and time parameters (such as cosmetic filling).
External control interface: Support PLC/Arduino and other external equipment linkage (such as automated production line).
Multichannel design
If you need to transport multiple liquids at the same time, choose a 2-8 channel model. For example, a two-channel pump delivers reagents and buffers simultaneously.
Anti-backflow function
When vertical transportation or liquid viscosity is low, a model with a check valve should be selected to prevent liquid backflow.
Brand and after-sales service
Brand reputation
Give priority to brands with ISO certification (such as Leifer, Kammer) to avoid three no products.
Example: The River BQ80S series is known for its high cost performance and stable performance.
After-sales service
Confirm the warranty period (at least 1 year), whether free repair or trade-in service is available.
Note: Cheap pump accessories (such as hoses) may need to be purchased separately and the cost should be consulted in advance.
Guide to avoiding pits
Models that are 30% below market price may have material shrinkage (e.g., recycled plastics instead of engineering plastics).
Test method: Material test report or sample test is required.
If you only need basic flow control, you don't need to pay a premium for additional features such as wireless control or data logging.
Cheap pumps may have a shorter hose life (e.g. 300 hours) and need to calculate consumable replacement costs.
Example: If the hose unit price is 5 yuan/root, replace it once a week, and the annual consumable cost is about 260 yuan.
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