I. Typical life range and influencing factors of peristaltic pump tubes
1. Material:
- Silicone tube: Good chemical resistance, life of about 500-1000 hours.
- Pharmed tube: High biocompatibility, life of more than 1500 hours.
- Tygon tube: Strong wear resistance, suitable for high speed, life of about 800-1200 hours.
2. Working conditions:
- Speed exceeding the design value (such as >100 RPM) will accelerate wear.
- Transporting corrosive media (such as strong acids, organic solvents) may shorten the life by more than 50%.
3. Pressure and temperature:
- For every 0.1MPa increase in pressure, the life is reduced by about 10% (according to the experimental data of "Fluid Transfer Systems").
- Long-term operation in an environment above 60℃ will accelerate aging.
II. How to judge whether the tube needs to be replaced?
1. Physical deformation: thinning, expansion or cracking of the pipe wall.
2. Flow rate reduction: the conveying efficiency is reduced by more than 10% due to inner diameter wear.
3. Leakage risk: seepage at the joint or loss of elasticity of the pipe body.
III. Practical methods to extend service life
1. Optimize operating parameters:
- Reduce the speed to less than 70% of the manufacturer's recommended value.
- Avoid dry operation to reduce friction and heat.
2. Regular maintenance:
- Check the status of the pipe every 50 hours and rotate the pipe section to even out the wear.
- Clean the residual medium after use to prevent chemical corrosion.
3. Selection and matching:
- For high-viscosity fluids, choose a pipe with a wall thickness of ≥1.5mm.
- For food/medical scenarios, give priority to FDA-certified materials.
