Chem-Durance Chemical pump tubing

Introduction Choosing a pump tubing formulation often means compromising on one or more key performance characteristics. Formulations that offer broad chemical resistance typically do not offer long pumping life. New Masterflex® Chem-Durance pump tubing gives you both.

Chemical Compatibility Chem-Durance chemical-resistant pump tubing is the latest formulation of Masterflex® pump tubing. Chem-Durance has been developed with a plasticizer-free bore (inner layer) specially bonded to a thermoplastic elastomer jacket (outer layer) to create a synergistic combination of chemical resistance and pumping life. With resistance to acids, bases, salts, ketones, and alcohols, this product will perform in a wide range of chemical applications—limiting the number of tubing formulations you need to keep on hand.

See our Tubing Chemical Compatibility Database

Temperature Pump tubing applications are often restricted due to the pronounced temperature sensitivity of clear PVC-based pump tubing. With Chem-Durance, the outer jacket acts as an insulating layer to absorb and dissipate heat from the rollers; effectively extending the life of the plasticizer-free inner bore and minimizing performance variations.

Sterilization Chem-Durance is unaffected by most commonly used chemical sanitizers and cleaners. As a result, it can be effectively cleaned without impacting its pumping life. Chem-Durance will also withstand sterilization by autoclave, ethylene oxide (ETO) gas, and gamma irradiation.

Pump Performance The plasticizer-free, smooth bore liner is hydrophobic and will resist the absorption/adsorption of aqueous fluids. This property minimizes the risk of fluid alteration in single- or repeat-use applications. Chem-Durance also shows excellent performance in pressure/vacuum applications and when pumping viscous fluids.

Test results to date have shown pump life up to 5000 hours at 100 rpm and 0 psi; up to 1000 hours at 600 rpm and 0 psi. Chem-Durance has been tested at pressures up to 40 psi, with a life of 200 hours at 100 rpm.

This unique tubing applies the latest in polymer technology to provide a pumpable and flexible tubing formulation for challenging fluid transfer applications.

Note: As with any pump tubing formulation, the pumping life for Chem-Durance will be significantly extended at reduced rpm (drive speed). To achieve the same flow rate at a lower rpm, simply switch to a larger size tubing. The realized increase in tubing life will generally more than offset any increase in cost.