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2. Piping and plumbing fitting - Wikipedia

   en.wikipedia.org/wiki/Piping_and_plumbing_fitting

   [22]: 149 Instead, pipe and fittings with plain (non-belled) connections are butted against each other, and clamped with special rubber sleeve (or "no-hub") fittings. [19]: 71 The rubber sleeves are typically secured with stainless steel worm drive clamping bands, which compress the rubber to make a tight seal around the pipes and fittings.

3. Compression fitting - Wikipedia

   en.wikipedia.org/wiki/Compression_fitting

   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

4. Saddle valve - Wikipedia

   en.wikipedia.org/wiki/Saddle_valve

   A saddle valve is mounted directly on to a pipe which is usually 1/2 inch copper tubing. Saddle valves are self-tapping devices. Once mounted on a line, with the included rubber seal in place, all that is required is to turn the valve clockwise until it pierces the water line. When the valve handle can no longer be turned, it is done tapping ...

5. Sleeve (construction) - Wikipedia

   en.wikipedia.org/wiki/Sleeve_(construction)

   A general practice is to size the sleeve two NPS (pipe sizes) up from the diameter of the penetrant. For example, a 4" pipe, with 1" of thermal insulation makes a 6" penetrant (1" pipe covering on each side of the pipe), plus two pipe sizes = an 8" sleeve, creating a 1" annulus.

6. Hose clamp - Wikipedia

   en.wikipedia.org/wiki/Hose_clamp

   Screw clamps are normally used for hoses 1/2 inch diameter and up, with other clamps used for smaller hoses. The first patent for a worm-drive hose clamp was granted to Swedish inventor Knut Edwin Bergström [ se ] in 1896 [ 1 ] Bergström founded “Allmänna Brandredskapsaffären E. Bergström & Co.” in 1896 (ABA) to manufacture these worm ...

7. Nipple (plumbing) - Wikipedia

   en.wikipedia.org/wiki/Nipple_(plumbing)

   A chase nipple is a short pipe fitting, which creates a path for wires between two electrical boxes. A chase nipple has male threads on one end only. The other end is a hexagon. The chase nipple passes through the knockouts of two boxes, and is secured by an internally threaded ring called a lock nut. [1] [2]