Tips for using peristaltic pumps

Peristaltic pumps are also called constant flow pumps and hose pumps. The mechanical principle of peristaltic pumps is very simple. It pumps fluid by alternately squeezing and releasing the pump tube. It's like squeezing a hose filled with liquid with two fingers. As the fingers move, negative pressure is formed in the tube, and the liquid flows along with it!

Tip 1: When the Peristaltic Pump is not working, loosen the pressure block of the pressure tube to extend the life of the pump tube. The peristaltic pump relies on the natural rebound of compressed hoses and hoses to generate suction and fluid delivery. To maintain the longevity of the pump tube, when the pump is not in use, try to lift the pump head pressure block so that the pump tube is naturally uncompressed State, thereby prolonging the life of the pump tube.

Tip 2: When selecting a peristaltic pump, as long as the flow rate is satisfied, the pump speed can be reduced to less than 300 revolutions. The flow of the peristaltic pump is generated by the rotation of the pump head. If the rotation is faster, the pump tube will be used for a shorter time. Therefore, when you want the pump tube to be used for a longer time, you can choose a pump with a larger tube diameter as much as possible. Thereby reducing the speed of the pump.

Tip 3: Use a special pipe for the peristaltic pump on the pump head, and use ordinary pipes for the other connecting pipes. Extrusion tubes used in peristaltic pumps require good compression, resilience, and tear resistance. Therefore, the material purity of these pump tubes is relatively high, and the wall thickness and shape accuracy are high, which will result in higher prices for peristaltic pump tubes. Therefore, it is more economical to use ordinary pipes as connecting pipes.

Technique 4: The inlet of the peristaltic pump pipe should be as short as possible, and the joint and diameter of the pipe should not be lower than the pipe diameter of the pump head. The suction force of the peristaltic pump is produced by the rebound of the pump tube. If the pipeline, especially the inlet pipeline, is too long or the diameter becomes smaller, it will cause excessive resistance at the suction end. If the resistance is too large, the rebound of the pump tube will be hindered, so the actual delivery Traffic will suffer a great loss. In the same way, if the diameter of the outlet pipeline becomes smaller or the pipeline is too long, the discharge pressure of the peristaltic pump is usually small. When the discharge resistance is too large, the output flow will decrease.

Tip 5: When selecting a peristaltic pump, the theoretical flow rate should be greater than the actual flow rate, which is greater than 30%. The Peristaltic Pump Tube is soft, so the negative pressure and discharge pressure generated by it is small. If the liquid to be transported has a certain viscosity or the pipeline has a certain length, it will cause the loss of the actual flow rate. To achieve the required flow rate selection, The theoretical flow rate is slightly higher than the actual flow rate.

Technique 6: When using the peristaltic pump, pay attention to cleaning up the debris on the pump casing and pump tube. Because the peristaltic pump is a relatively precise instrument, it mainly relies on the pump casing to maintain a high-precision gap, To efficiently squeeze the pump tube. If the pump tube is damaged and the inflowing liquid adheres to the pump casing roller, pressure block, and pump tube, It will change the compression gap of the pump head, even a small change will cause excessive premature wear of the pump tube, which will seriously affect the pump head and cause damage to the pump head.

Tip 7: When using the peristaltic pump, check the wear of the pump tube regularly. Because the peristaltic pump tube is a vulnerable part, once it is damaged, it will cause liquid leakage. Therefore, it is necessary to check the surface of the pump meter in time to prevent the pump tube from being damaged.

Tip 8: When choosing a peristaltic pump, pay attention to whether the liquid to be transported will corrode the pump tube. Because pump pipes are made of many materials and transported liquids are also very many, no pump pipe can withstand all liquids, so you need to confirm your liquid type, compare the chemical compatibility table or ensure the pump pipe through immersion experiment can use.