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Brass or bronze fittings are common in copper piping and plumbing systems. Fire resistance , earthquake resistance, mechanical ruggedness, theft resistance, and other factors also influence the choice of pipe and fitting materials.
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
Used in faucets, pump components, pipe fittings, plumbing goods, water pump impellers, housings and small gears, Alloy C89835 Bismuth-Tin Bronze has density 0.321 lb/in 3, [10] while Alloy C89844 (which is used for fittings or valves for potable water) has a density of 0.31 lb/in 3. [11]
Generally, copper tubes are soldered directly into copper or brass fittings, although compression, crimp, or flare fittings are also used. Formerly, concerns with copper supply tubes included the lead used in the solder at joints (50% tin and 50% lead). Some studies have shown significant leaching of the lead into the potable water stream ...
Lead alloys (bronze, brass) are used for plumbing fittings, and lead solders were also preferred. While state and local governments began to prohibit installation of lead pipes early in the twentieth century, lead alloys continued to be used. [5] Alternative pipe materials have been iron, copper, and later plastics.
U.S. government bronze specification H is composed of 83% copper, 14% tin, 3% zinc, and 0.8% phosphorus. [4] Red brass is used to produce pipes, valves, and plumbing fixtures and is considered to offer a good mixture of corrosion resistance, strength and ease of casting. [5] It typically contains 85% copper, 5% tin, 5% lead, and 5% zinc.
To combat this, arsenic or tin can be added to brass, or gunmetal can be used instead. Dezincification resistant brass (DZR), also known as Brass C352 is an alloy used to make pipe fittings for use with potable water. Plumbing fittings that are resistant to dezincification are appropriately marked, with the letters "CR" (Corrosion Resistant) or ...
In plumbing and piping, a nipple is a fitting, consisting of a short piece of pipe, usually provided with a male pipe thread at each end, for connecting two other fittings. The length of the nipple is usually specified by the overall length with thread.
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