The following lines were added (+) and removed (-):
There are no normal connectors and thread types in plumbing. Plumbing threads come in different sizes and different styles. Common supply lines, for instance, generally have a 1/2-inch pipe thread on the end which attaches to the faucet, and one of three sizes on the end which attaches to the valve - 3/8-inch compression, 1/2-inch compression, or 1/2-inch FIP.Types of connectors inlcude:* OD Copper Tube* Compression== American Tapered Pipe Threads NTP ==== Pipe Thread Types == * Pipe Threads* Compression Threads* Flare Fittings === American Tapered Pipe Threads NTP ===* Common Terminology: MIP (male pipe thread), FIP (female pipe thread) or NPT (national pipe thread)Some examples of pipe materials making use of MIP fittings include: galvanized steel, black iron, and sometimes thick copper. Galvanized steel most commonly for water, black iron most commonly for natural gas.Some examples of pipe materials making use of MIP fittings include: galvanized steel, black iron, PVC, and sometimes thick copper. Galvanized steel most commonly for water, black iron most commonly for natural gas. === Compression ===Compression threads are not tapered. Because compression threads are measured by the size of the pipe, they are smaller than NTP. Note that a 1/2" compression thread is significantly smaller than a 1/2" pipe thread. Compression thread is common with copper tubing. A metal or plastic ferrul is used (which looks like a ring slipped over the pipe, that the connection compresses down on to create a water tight seal. Sink faucet supply lines often use compression threads. === Flare === Flare fittings are somewhat rare in residential plumbing. There are some examples of their use. A special flaring tool has to be used to create the flare end on the copper tubing. This then seats inside the flare fitting to create a water tight seal.