Watson-Marlow Pumps Group is now offering GORE High Resilience Tubing: Style 400 tubing. The expanded PTFE multi-layer tubing, featuring Viton filler, is designed to maintain a stable flowrate for thousands of hours while pumping aggressive chemicals. This construction makes the tubing suitable for a range of aggressive chemicals, such as concentrated acids like Nitric and Sulfuric as well as aromatic hydrocarbons like Toluene and Xylene. At continuous pressures of 60 PSI, consistent flowrates are achieved throughout the lifetime of Style 400 tubing. Performance testing shows the tubing offers greater than 50 times longer life than conventional non-reinforced extruded Viton or Fluorel tubes. Applications include hydrocarbon pumping in the nuclear industry, Nitric acid in dairies, Toluene pumping in automotive screw lock application, solvent based inks, and hydrocarbon-based polymer dosing. The tubing is currently available with internal diameters ranging from 1.6 up to 12.7mm, with wall thickness from 1.6mm up to 4.8mm to provide reliable metering of aggressive chemicals and increased process consistency.