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Piping or tubing is usually inserted into fittings to make connections. Connectors are assigned a gender, abbreviated M or F. An example of this is a "3 ⁄ 4-inch female adapter NPT", which would have a corresponding male connection of the same size and thread standard (in this case also NPT).
Each fixture usually has a characteristic means of connection. Normal plumbing practice is to install a valve on each water supply line before the fixture, and this is most commonly termed a stop or "service valve". The water supply to some fixtures is cold water only (such as water closets and urinals). Most fixtures also have a hot water supply.
They are used underwater, in drilling operations, in outer space, and for pneumatic-power, plumbing, heating, electrical, and fire-suppression applications. Quick connect fittings are intended to be applied more easily than traditional fittings, requiring only that the pipes be pushed together firmly to lock the teeth of the fitting firmly.
John Guest (Established in 1961, West Drayton, UK) developed the Speedfit push-fit connector for compressed air use in 1974, and introduced plumbing fittings in 1987. [2] These fittings are white plastic, and are unscrewable to replace components, like Hep2O, but also have a push-release mechanism. Speedfit uses plastic pipe support inserts.
The American Society of Mechanical Engineers (ASME) publishes several Standards on plumbing. Some are: ASME A112.6.3 – Floor and Trench Drains; ASME A112.6.4 – Roof, Deck, and Balcony Drains; ASME A112.18.1/CSA B125.1 – Plumbing Supply Fittings; ASME A112.19.1/CSA B45.2 – Enameled Cast Iron and Enameled Steel Plumbing Fixtures
A compression fitting 15 mm isolating valve. A compression fitting is a fitting used in plumbing and electrical conduit systems to join two tubes or thin-walled pipes together. . In instances where two pipes made of dissimilar materials are to be joined (most commonly PVC and copper), the fittings will be made of one or more compatible materials appropriate for the connect
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