The selection of peristaltic pump details the selection of peristaltic pump:
First, the flow: determine the limit flow (maximum and minimum) that you need to transport liquid, select the corresponding peristaltic pump according to your needs, you need to consider the following factors when determining the flow:
1. The flow data clearly indicated by all peristaltic pumps are measured by clear water. The different flow rates of the medium will be different. High-viscosity liquid, high-solids liquid, liquid with poor fluidity, etc., the actual flow rate and marked flow rate will be There is a lot of attenuation!
2. The flow parameters indicated are measured by the clear water and the suction stroke. If there is a large suction flow, the flow will be reduced, and the lift will have less flow loss.
3, the required delivery flow should be within the limit flow of the pump, and please consider the impact of the above two factors on the flow, in the actual selection, especially the pump that needs long-term operation, we strongly recommend that the pump run at low speed as much as possible It can meet the flow requirement (≤300rpm), long-term high-speed operation, one will reduce the service life of the pump, the other is that the hose will wear out quickly, and your consumable consumption (hose) will be very expensive!
Second, determine whether you need a whole pump or OEM products.
1, the so-called whole pump, that is, has a complete function, can be operated by accessing the power supply, without professional knowledge, is a standardized product.
OEM products are generally manufactured products or parts, requiring users to have the appropriate expertise and installed on their own equipment to achieve unique features.
2. The whole pump can be operated by connecting 220V/50Hz civil or 380V/50Hz power, no need to assemble and debug, and the pump can be operated according to the instruction manual. The entire pump can usually be precisely adjusted. You should select the type according to the flow, application function, chassis material, protection level, pump head requirements, and hose selection.
There are many factors you need to consider for OEM products, such as price, flow, function, motor, hose, power supply, etc. We provide more power levels, generally divided into two types of AC and DC, AC is divided into single-phase civilian and three-phase power, DC is generally divided into 6/12/24V three, DC motor is connected to the corresponding DC motor It can be operated (the positive and negative poles only determine the steering of the motor will not burn the motor), while the stepper motor and the brushless motor are widely used in the peristaltic pump, and must be connected to the corresponding driver to operate. Ordinary DC motors can provide speed governing boards for speed regulation in a narrow range, while stepper motors can provide a wide range of speed control board, but it is important to remember that such boards generally need to be strictly in accordance with the requirements of the positive and negative poles. Once the positive and negative poles are reversed, the board may be burned!
Third, the pump head pump head is the key core component, you have to choose according to the requirements, generally divided into three types of mainstream pump heads: quick-loading type, easy-loading type and spring type. The quick-loading type is generally used for OEM products, and the easy-to-install type Widely used in the whole pump, the spring type is used in OEM and whole pump products. Each pump head has its limit flow range, and each pump head is only suitable for loading a wall thickness series hose.
Fourth, the choice of pump tube peristaltic pump hose is a professional hose, its size, material, resilience, hardness design are very strict technical requirements!
1. The material selection of the pump tube, especially the liquid to be delivered is a highly corrosive liquid! According to the nature of the liquid, the corresponding materials are selected. Currently, the domestically supplied hoses or imported hoses are provided. The domestic hoses are made of silicone rubber, which is resistant to general chemical corrosion, and the hoses with special requirements still need to rely on imported products. There are many materials to choose from for imported hoses. For details, please refer to [Pipe Tube Anti-Chemical Compatibility Table], our product engineers will also accurately recommend according to the chemical composition you provide!
2, the life of the pump tube factor, the general domestic silicone tube life is usually ≥ 500 hours life (300 rpm, pumping clean water at room temperature), the imported tube has a long life hose, its service life can reach 10,000 hours.
3, the quality of domestic silicone tube products is uneven, raw materials, processing technology, technical requirements and other factors will directly affect the service life of the hose. Whether the user is regulating the use, the quality of the pump head, the characteristics of the medium being transported, etc. are also critical factors!
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