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  2. 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 ...

  3. Propane, butane, and LPG container valve connections

    en.wikipedia.org/wiki/Propane,_butane,_and_LPG...

    Several types of valve connections for propane, butane, and LPG containers exist for transport and storage, sometimes with overlapping usage and applications, and there are major differences in usage between different countries. Even within a single country more than one type can be in use for a specific application.

  4. Double check valve - Wikipedia

    en.wikipedia.org/wiki/Double_check_valve

    A double check valve or double check assembly (DCA) is a backflow prevention device designed to protect water supplies from contamination. [1] It is different from the two-way check valves (sometimes erroneously referred to as double check valves) used in air brake systems on heavy trucks which select from the highest pressure source.

  5. Automatic bleeding valve - Wikipedia

    en.wikipedia.org/wiki/Automatic_bleeding_valve

    Brass-bodied float valve. An automatic bleeding valve or air release valve (ARV) is a plumbing valve used to automatically release trapped air from a heating system. Air, or other gas, may collect within plumbing. For water delivery systems to taps and basins, particularly with good main supply pressure, this air is usually flushed through with ...

  6. Utility Stores Corporation - Wikipedia

    en.wikipedia.org/wiki/Utility_Stores_Corporation

    The Utility Stores Corporation of Pakistan (USCP) is a Pakistani state-owned enterprise that operates chain stores throughout the country that provide basic commodities to the general public at prices which are lower than the open market because the government subsidizes them. [1] It is the largest chain-store entity in the country with 5,939 ...

  7. Ball valve - Wikipedia

    en.wikipedia.org/wiki/Ball_valve

    High-pressure ball valves are often used in hydraulic systems, so they are also known as hydraulic ball valves. Ball valves in sizes up to 2 inches (51 mm) generally come in a single piece, two or three-piece designs. One-piece ball valves are almost always reduced bore, are relatively inexpensive, and are generally replaced instead of repaired.

  8. Sui Southern Gas Company - Wikipedia

    en.wikipedia.org/wiki/Sui_Southern_Gas_Company

    The construction of the 347-mile pipeline with a 16-inch diameter and a capacity of 110 million cubic feet of gas per day was carried out by Pakistan Constructors, a joint venture between Morrison–Knudsen and William Press Ltd. [3] The project commenced in July 1954 and was completed by April 1955. [3]

  9. Victaulic - Wikipedia

    en.wikipedia.org/wiki/Victaulic

    Victaulic is a developer and manufacturer of mechanical pipe joining systems, and the originator of the grooved pipe couplings joining system. [1] The firm is a global company with 15 major manufacturing facilities, 28 branches, and over 3600 employees worldwide.

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