Peristaltic pumps, also known as constant flow or hose pumps, operate on a simple mechanical principle. They move fluid by alternately squeezing and releasing the pump tubing, much like using two fingers to compress a flexible hose filled with liquid. As the fingers move, a negative pressure is created inside the tube, allowing the liquid to be drawn in and then pushed forward. This mechanism ensures consistent flow without direct contact between the pump and the fluid, making it ideal for sensitive or corrosive substances.
As a leading manufacturer of peristaltic pumps, Shanghai Jiapeng has accumulated extensive experience over many years of research and development. These tips are designed to help users and industry peers optimize performance, extend pump life, and ensure reliable operation.
Tip 1: When the pump is not in use, loosen the pressure block to reduce stress on the tubing. The pump relies on the natural rebound of the tubing to create suction. Leaving the tubing under constant pressure can cause premature wear. By lifting the pump head clamp when idle, you allow the tubing to return to its original shape, significantly increasing its lifespan.
Tip 2: Choose a lower pump speed (below 300 RPM) if the flow rate requirements are met. Faster rotation leads to more frequent compression, which shortens the life of the tubing. Using a larger diameter pump can help maintain the desired flow at a slower speed, reducing wear and extending the pump’s operational life.
Tip 3: Always use specialized tubing for the pump head, while ordinary piping can be used for connections. Peristaltic pump tubing is engineered for high resilience and tear resistance, ensuring long-term performance. Ordinary pipes, although less expensive, are suitable for connecting lines where high precision is not required.
Tip 4: Keep the inlet tubing as short as possible, and ensure that the diameter matches or exceeds that of the pump tubing. Long or narrow tubing increases resistance, which can hinder the pump's ability to generate proper suction. Similarly, a small or long outlet pipe can reduce discharge efficiency, leading to lower flow rates.
Tip 5: Select a pump with a theoretical flow rate that is at least 30% higher than the actual requirement. Peristaltic pumps have limited pressure capabilities due to the soft nature of their tubing. Viscous liquids or long pipelines can cause significant flow loss, so oversizing the pump helps compensate for these factors.
Tip 6: Regularly clean the pump casing and tubing to prevent debris buildup. The pump housing maintains precise clearance to effectively compress the tubing. If foreign particles accumulate on the rollers or pressure blocks, they can alter the compression gap, leading to uneven wear and potential damage to the tubing.
Tip 7: Inspect the pump tubing regularly for signs of wear or damage. As a consumable part, the tubing can rupture over time, causing leaks. Checking the surface of the pump head for early signs of abrasion can help prevent costly failures.
Tip 8: Consider the chemical compatibility of the pump tubing with the liquid being transported. Different materials offer varying levels of resistance to corrosion. It’s essential to test the tubing against the specific liquid or consult a chemical compatibility chart before installation to avoid damage and ensure safe operation.
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