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  2. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    A BTU is the energy required to raise one pound of water by one degree Fahrenheit. A US gallon of water weighs 8.3 pounds (3.8 kg). To raise 230 L (60 US gal) of water from 10 °C (50 °F) to 50 °C (122 °F) at 90% efficiency requires 60 × 8.3 × (122 − 50) × 1.11 = 39,840 BTU. A 46 kW (157,000 BTU/h) heater, as might exist in a tankless ...

  3. Pressure vessel - Wikipedia

    en.wikipedia.org/wiki/Pressure_vessel

    The ASME definition of a pressure vessel is a container designed to hold gases or liquids at a pressure substantially different from the ambient pressure. [2]The Australian and New Zealand standard "AS/NZS 1200:2000 Pressure equipment" defines a pressure vessel as a vessel subject to internal or external pressure, including connected components and accessories up to the connection to external ...

  4. National Board of Boiler and Pressure Vessel Inspectors

    en.wikipedia.org/wiki/National_Board_of_Boiler...

    Pressure-retaining items can be registered with the National Board, requiring certain uniform quality standards be achieved certifying the manufacturing, testing, and inspection process. To obtain a certification the registered items have to be inspected by National Board-commissioned inspectors and built to required standards.

  5. Composite overwrapped pressure vessel - Wikipedia

    en.wikipedia.org/wiki/Composite_overwrapped...

    A composite overwrapped pressure vessel (COPV) is a vessel consisting of a thin, non-structural liner wrapped with a structural fiber composite, designed to hold a fluid under pressure. The liner provides a barrier between the fluid and the composite, preventing leaks (which can occur through matrix microcracks which do not cause structural ...

  6. Propane, butane, and LPG container valve connections

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

    A permanent pressure vessel storage tank. Connector types and standards ... (G.50) EN 15202 16 mm 0.629 No thread INT Quick coupling 19 mm (G.51) EN 15202

  7. Category:Pressure vessels - Wikipedia

    en.wikipedia.org/wiki/Category:Pressure_vessels

    Pages in category "Pressure vessels" The following 49 pages are in this category, out of 49 total. This list may not reflect recent changes. ...

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