The first point of peristaltic pump hose selection method: corrosion resistance/compatibility

When transferring different fluids, the peristaltic pump hose should show certain excellent chemical properties, which is called chemical compatibility. Such as: low adsorption, good temperature resistance, not easy to age, no swelling, corrosion resistance, low precipitates

Chemical corrosion resistance decreases with the increase of temperature, and chemicals that do not affect the pipe at room temperature may affect the peristaltic pump hose with the increase of temperature.

The second point of peristaltic pump hose selection method: pressure

The application of peristaltic pump is limited by the pressure bearing performance of hose.

If the system pressure exceeds the limit pressure of the peristaltic pump hose, the peristaltic pump hose will expand, resulting in excessive wear of the peristaltic pump hose or hose rupture.

The factors that affect the pressure of peristaltic pump hose are: material, diameter and wall thickness ratio.

The third point of peristaltic pump hose selection method: temperature

The hose ADAPTS to the operating temperature range is a factor to be considered by the user. Different materials have different temperature behavior.

The fourth point of peristaltic pump hose selection method: size

The size of the peristaltic pump hose has a direct impact on the flow rate, and good pump design takes into account the inner diameter and wall thickness of the applicable hose to match the optimal peristaltic pump hose size or pipe number range. The inner diameter of the hose determines the flow rate; The wall thickness affects the ability of the hose to be compressed and rebound, and also has a great impact on the life of the peristaltic pump hose.

Peristaltic pump hose selection method fifth: certification

Peristaltic pump hoses used for related purposes may be subject to relevant certification. Such as the United States Pharmacopeia standard USP, European Pharmacopeia standard EP, the United States Food and Drug Administration standard FDA, the United States Department of Agriculture standard USDA and the National Health Foundation standard NSF.

Peristaltic pump hose selection method sixth: flexibility/elasticity/life

Different peristaltic pump hose resistance to roller repeated extrusion, friction ability is different. Different pipe types, tubes, pump heads, and operating speeds have different life spans. The service life is called the flexible life in the pump system, and the characteristics of the pump are very consistent in the specific application. Choose a long life, thick wall pipe, choose a large flow pump, running at a lower speed can obtain a longer peristaltic pump hose life.