Joining Method Threaded

Image provided by Ferris State University

A connection in which an internal threaded fitting and an external threaded piece of pipe or other fitting are screwed together. Threaded joints may be used in sizes ranging from 1/4-inch through 12-inch. However, their primary use is in 4-inch and smaller applications. The fitting materials, which are used to make threaded joints with standard piping materials, are: cast (gray) iron, malleable iron, ductile iron, cast copper, brass, plastic, and steel.  Cast, malleable, and ductile iron fittings are the most widely used and are compatible for use with nonferrous piping materials such as brass, copper, and plastic. Steel fittings are usually specified for high-pressure and high-temperature applications. The most commonly used threaded plastic piping materials are PVC, CPVC, and PVDF.

Relevant Materials And Systems

Polypropylene (PP) Pipe

Manufactures and Suppliers Participating in OPUS