PVC Threaded Fittings (Polyvinyl chloride) fittings are used to connect sections of pipes or tubes. Adapt to different sizes or shapes, and controlling the flow of water.

PVC Threaded fittings utilise a simple threaded connection whereby replaceable ‘male threaded‘ are screwed into ‘female threaded‘. Male threads have a thread on the outside of the fitting and female threads have a thread on the inside.

When you thread the fitting in, it compresses against the other threads. PTFE tape better know as thread tape is used to thread these together. The proper way to assemble threaded fittings is to finger tighten, then add one to two turns but no more.

An example of a threaded fitting is a Reducing Nipple Male Threaded which is used to connect between two female threads of different diameters.

NPT stands for National Pipe Thread, a U.S. standard for tapered threads used on pipes and fittings, including those made of PVC (polyvinyl chloride).