Шланг для перистальтического насоса 13 #14 #19 #17 #25 #17 #18 #15 #24 #35 #36 #72 #83 #

Chemical compatibility
Chemical compatibilities of tubing are some good chemical properties the tubing appears when transferring fluid, such as: low adsorption, good temperature-endurance, aging-resistance, no swelling, corrosion resistance, less separation, etc. Chemical compatibility view Chemical compatibility table,we should check Chemical compatibility table that special design for peristaltic pump, rather than usual pipe chemical compatibility chart.The normal tubing only general touch with chemical material, but peristaltic pump’ tubing touch with chemical material under working conditions, so the chemical compatibility level is different between peristaltic pump’s tubing and general tubing. Peristaltic pump’s tubing has the corresponding materials to meet demand, according to transmission various liquid. When refer to  Chemical compatibility tablecheck every kind of composition,rather than main composition to test the tubing. Some of acid liquor or solvent will be destroyed the tubing after use several hours or days, even micro scale.
 The user should check every kind of chemical material in the solution, to make sure is can handle with the chosen tubing compatible.
Chemical resistant
 Chemical resistant of tubing will be lower as the temperature higher,that means the chemicals
 is not affect at the room temperature,but destroyed as the temperature higher.
 Chemical compatibility test: take a part of tubing, record it weight, diameter and length parameter.
Put it into a liquid sealed container, at least 48 hours. Then take it off, clean by clean water, dry it. Test its weight, diameter, length again; observe its changes. Also check the tubing whether change soft or brittle. If the tubing changes, it is influenced by the chemical liquid. In another word, the liquid is incompatible with the liquid tubing. Should each candidate will handle in the actual environment conditions of factory, observation of test results. If the tubing does not appear fade, swelling .crack, the loss of liquidity or other signs of deterioration after commissioning handle, proof it is compatible with the liquid.

Compression:  When the pump push through a filter, fluid flow meter or valve, or pump fluid into the book a pressurized reactor, can produce back pressure. The application of peristaltic pump confined limit by tubing compression performance. If the system pressure over the limit of the tubing, the tubing will be expended, result in the tubing excessive wear or tubing burst. The factors of affecting the tubing compression: material, diameter and the wall thickness of the scale. Temperature : The working temperature range of tubing is the main factor of user considers. Different materials have different temperature performance. Some materials such as silicone rubber is wider temperature range, it is suitable for the high temperature and low temperature. But some tubing materials can work only for a small range. The user in the selection of tubing materials, should first make clear the maximum and minimum temperature, then ensure the selected tubing can work in the temperature range. Size:     The size of the tubing direct influence on the flow, the inner diameter of the tubing decided the flow, is directly proportional to the flow. Wall thickness not only influences the resilience of tubing, but also influences the life of the tubing. Transparency:    Whether or not adopt transparent tubing, first look at whether the operator needs observe the status of tubing fluid at any time. Check the fluid is whether sensitive with the light. If the operator needs observe the status such as: the bubbles, particles, pollution case, should choose the Tygon® or silicone rubber tubing, and if the fluid is not easy to exposure, should choose not transparent tubing. Gas permeability: For some fluid is sensitive with the gas, some easy by oxidation, or anaerobic cell cultures. Users should consider the gas permeability factor of tubing. In general, the highest porosity is silicon tubing. So some fluid that unfavorable contact with the gas, should choose the low porosity of tubes. The authentication: Tubing is used for related purposes may be through the relevant authentication. Such as the United States pharmacopoeia USP, European pharmacopoeia EP, the United States food, the United States department of agriculture standard USDA and the national sanitation foundation standard NSF. Working life:    Different tubes have different abilities of roller extruding, friction resistance. Different tubing type, pipe, pump head, operation speed, the life are different. Choose the long life, thick wall tubing, big flow pump, run in lower speed can be obtained more long service life. Flow range:   Each tubing is corresponding fixed flow range, we according to our customers needs of flow range choose corresponding tubing. Specific data view variable tubing flow reference tubing table