Union for Fractional Tube

Parker CPI™ and A-LOK® Instrumentation Tube Fittings are supplied complete and ready to use. The ferrule(s) swage onto the tube as it moves down the body seat creating a pressure/vacuum-tight seal on both tube and body by the interface pressure and surface finish of mating components. The Parker Suparcase® ferrule (back-ferrule only on A-LOK®) creates a strong mechanical hold on the tube. Parker CPI™ / A-LOK® tube fittings can be used with a wide variety of tubing materials and a broad range of tube wall thicknesses.