What Are Pp Compression Fitting?


The pp compression fitting have three parts: a nut, a compression ring and a compression seat.

 

What
The pp compression fitting have three parts: a nut, a compression ring and a compression seat. The nut and the ring slide over a tube or pipe. The seat slides onto the other connecting pipe/tube/fitting. When the nut is tightened, it compresses the ring into the seat making a seal.

Pros and Cons
The advantages of using pp compression fitting outweigh the disadvantages. They are easy to assemble and easy to take apart, inexpensive, simple enough for any do-it-yourselfer, usually durable for the life of an appliance or fixture (if installed correctly) and easily replaceable if necessary. Since they allow plumbing connections without soldering, pp compression fitting are safe in confined areas, like under a sink.
The disadvantage of using pp compression fitting is that if they are installed incorrectly or are used in the wrong application, they will leak. They also aren't a strong, soldered finish. There are a few "don'ts" as far as installing pp compression fitting go:
Don't use if the piping or tubing isn't stationary.
Don't use to lengthen pipes (the exception is behind a sink when movement and stress are unlikely).
Do not reuse pp compression fitting.
Don't over-tighten the fitting.
Don't move it once tightened (any amount of stress can cause a leak).