1. Material properties:
- Silicone tubes have excellent chemical resistance but poor wear resistance, and their lifespan is usually 3-6 months;
- Polyurethane tubes have high tensile strength and their lifespan can be up to twice that of silicone tubes (data source: Masterflex experimental data).
2. Fluid properties:
- Acidic or alkaline liquids will accelerate material aging, and the lifespan will be reduced by more than 40% when the pH value exceeds the range of 4-10;
- Fluids containing solid particles (such as slurries) will increase the wear rate by 3-5 times.
3. Working parameters:
- For every 0.2MPa increase in pressure, the deformation of the pump tube increases by 15%, and the lifespan decreases by about 25% (see "Chemical Machinery" 2022 study);
- When the temperature exceeds 60℃, the lifespan decreases by 30% for every 10℃ increase.
4. Maintenance and operation:
- Regular lubrication of the pump head can extend its life by 20%-30%;
- Incorrect installation (such as over-tightening or over-loosening) can shorten its life by more than 50%.
