The peristaltic pump hose is an accessory of the peristaltic pump, which belongs to consumables and is mainly used to transport liquids, gases, liquids and mixtures of gases and solids. The peristaltic pump hose has certain elasticity, certain wear resistance, certain ability to withstand pressure, no leakage (good air tightness), low adsorption, good temperature resistance, not easy to age, not swelling, corrosion resistance, Features of low precipitation.
1. Silicone tube: It is one of the most commonly used pipes. In order to strengthen the physical and chemical properties of silicone elastomers, there are usually two treatment methods: platinum vulcanization and peroxide vulcanization. The former has high cost, smooth inner wall of the tube, and extremely biocompatible. Excellent, can be used as pharmaceutical/sanitary hose. The latter will more or less cause the inner wall to fold and may react with certain chemicals, causing discoloration. Silicone tubing is poorly tolerant to organic solvents and should be avoided in this area without investigating chemical compatibility.
It should be pointed out that not all silicone tubes can be used as peristaltic pump tubes, and must have various requirements such as resilience and hardness.
2. Ordinary rubber tube: There are many kinds of rubber tube that can be used as peristaltic pump. Correspondingly, there are certain requirements for resilience, hardness, elongation, etc. In general, the resistance of rubber tubes to organic solvents is improved compared to silicone tubes, but they are different for various organic substances. Recommended as an inexpensive pump tubing in harsh service. With the addition of accessories, many composite rubber pipes can be derived, and the properties of various aspects are emphasized.
3. Fluoroelastomer tube seems to be the best choice at present when strong corrosive or non-calculated solvent needs to be transported. Strong chemical principles, good resilience and hardness, combined with the advantages of PTFE/PFA/ETFE, and rubber tubes, in addition to the high cost, the other excellent properties are getting more and more attention. Of course, due to the addition of rubber particles, its chemical resistance is worse than that of tetrafluoro copolymers. For specific applications, you need to check the chemical compatibility table or do a soaking test.