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  2. Cross-linked polyethylene - Wikipedia

    en.wikipedia.org/wiki/Cross-linked_polyethylene

    Brass crimp fittings, another popular type of fittings primarily used for connection PEX to PEX, PEX to Threaded pipes. 1.Drop Ear Elbows connect PEX and threaded pipe at a 90-degree 2.PEX to Copper Solder Adapter 3.PEX to Copper Threaded Adapter 4.PEX to Female Threaded Adapter 5.PEX Plug - terminate end of pipe 6.PEX to PEX Coupling 7.PEX to ...

  3. Check valve - Wikipedia

    en.wikipedia.org/wiki/Check_valve

    A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction. [1] Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various ...

  4. Plumbing - Wikipedia

    en.wikipedia.org/wiki/Plumbing

    These sizing schemes allow for universal adaptation of transitional fittings. For instance, 1/2" PeX tubing is the same size as 1/2" copper tubing. 1/2" PVC on the other hand is not the same size as 1/2" tubing, and therefore requires either a threaded male or female adapter to connect them.

  5. Relief valve - Wikipedia

    en.wikipedia.org/wiki/Relief_valve

    A relief valve DN25 on cooling water pipe from heat exchanger Schematic diagram of a conventional spring-loaded pressure relief valve. A relief valve or pressure relief valve (PRV) is a type of safety valve used to control or limit the pressure in a system; excessive pressure might otherwise build up and create a process upset, instrument or equipment failure, explosion, or fire.

  6. Plastic pipework - Wikipedia

    en.wikipedia.org/wiki/Plastic_pipework

    Plastic Pipe lengths manufactured in Australia by extruding HDPE material.. Plastic pipe is a tubular section, or hollow cylinder, made of plastic.It is usually, but not necessarily, of circular cross-section, used mainly to convey substances which can flow—liquids and gases (fluids), slurries, powders and masses of small solids.

  7. List of inventors - Wikipedia

    en.wikipedia.org/wiki/List_of_inventors

    Johan Petter Johansson (1853–1943), Sweden – Pipe wrench and adjustable spanner; Reynold B. Johnson (1906–1998), U.S. – Hard disk drive; Philipp von Jolly (1809–1884), Germany – Jolly balance