When transferring different fluids, the hose should show certain excellent chemical properties, which is called chemical compatibility. For example: low adsorption, good temperature resistance, not easy to aging, no swelling, corrosion resistance, low precipitates, chemical corrosion resistance decreases with the increase of temperature, at room temperature has no effect on the tube of chemicals may affect the hose with the increase of temperature.

Under pressure

The application of peristaltic pump is limited by the pressure performance of the hose. If the system pressure exceeds the limit of the hose pressure, the hose will expand, resulting in excessive hose wear or hose rupture. The factors that affect the pressure of hose are: material, diameter and wall thickness ratio, etc.

The temperature

The suitability of the hose to the operating temperature range is a consideration for the user. Different materials have different temperature behavior.

size

The size of the hose has a direct impact on the flow rate, the design of the pump will consider the inner diameter and wall thickness of the applicable hose, matching the best flexible tube size or tube number range. The inner diameter of the hose determines the flow rate; Wall thickness affects the ability of the hose to be compressed and rebound, and also has a great influence on the life of the hose.

Flexibility/elasticity/life of the hose

Different hoses have different ability of resisting roller repeated extrusion and friction. Different types of pipe, tubing, pump head, running speed have different life. Service life in pump systems is called flexible life, in particular applications, pump characteristics are very consistent. Choose long life, thick wall pipe, choose large flow pump, running at low speed can get longer hose life.