The Parker A-Lok front ferrule compression tube fitting is made of polytetrafluoroethylene (PTFE) and has tube connectors. This front ferrule provides a seal when compressed between two mating components and connects to tubing in a rigid or semi-rigid tubing system. This fitting is made of polytetrafluoroethylene (PTFE), a strong, low-friction material that has smooth transfer, high surface release, and nonstick properties. It has high chemical resistance, and resists moisture, high temperatures, flames, thermal expansion, and ultraviolet (UV) exposure. PTFE has low temperature toughness. This front ferrule fitting is for leak-proof protection in chemical, petroleum, power generation, laboratory, and medical device plants. Pipe and tube fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. Compression fittings do not require tools or sealants, and are useful in installations where a heat source, such as a soldering torch, is prohibited. When purchasing fittings, consider the application, as this will affect material type, shape, size, and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).Parker Hannifin manufactures electromechanical, hydraulic, and pneumatic motion technologies and systems. The company, founded in 1918 and headquartered in Cleveland, OH, provides fluid handling, filtration, sealing and shielding, climate control, process control, and aerospace technologies.