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  2. .22 Winchester Magnum Rimfire - Wikipedia

    en.wikipedia.org/wiki/.22_Winchester_Magnum_Rimfire

    The .22 Winchester Magnum Rimfire, also known as the .22 WMR, .22 Magnum, .22 WMRF, .22 MRF, [2] or .22 Mag, is a rimfire cartridge.Originally loaded with a bullet weight of 40 grains (2.6 g) delivering velocities in the 2,000 feet per second (610 m/s) range from a rifle barrel, .22 WMR is now loaded with bullet weights ranging from 50 grains (3.2 g) at 1,530 feet per second (470 m/s) to 30 ...

  3. AMT AutoMag II - Wikipedia

    en.wikipedia.org/wiki/AMT_AutoMag_II

    There were a number of engineering challenges to overcome in designing an autoloading .22 WMR handgun such as extraction problems. The extraction problems stem from the fact that the slow burning rifle powder of the .22 WMR cartridge develops a late peak pressure. This can cause the case mouth to expand and jam in the chamber when fired from a ...

  4. 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.

  5. .22 long rifle - Wikipedia

    en.wikipedia.org/wiki/.22_Long_Rifle

    A .22 Short, .22 long rifle, .22 Winchester Magnum, and a .22 Hornet. The .22 long rifle uses a straight-walled case. Depending upon the type and the feed mechanism employed, a firearm that is chambered for .22 long rifle may also be able to safely chamber and fire shorter rimfire cartridges, including the .22 BB, .22 CB, .22 short, .22 long.

  6. Safety valve - Wikipedia

    en.wikipedia.org/wiki/Safety_valve

    An oxygen safety relief valve DN250-safety valves. A safety valve is a valve that acts as a fail-safe.An example of safety valve is a pressure relief valve (PRV), which automatically releases a substance from a boiler, pressure vessel, or other system, when the pressure or temperature exceeds preset limits.

  7. Gas check - Wikipedia

    en.wikipedia.org/wiki/Gas_check

    Gas checks are most commonly found in the form of a thin cup or disc made of a ductile metal. Copper, zinc, aluminum, and alloys such as brass have been used. A bullet designed to accept a gas check has a rebated base shank which permits attachment of the check without altering the maximum diameter of the bullet.

  8. Reduced pressure zone device - Wikipedia

    en.wikipedia.org/wiki/Reduced_pressure_zone_device

    A reduced pressure zone device (RPZD, RPZ, or RPZ valve) is a type of backflow prevention device used to protect water supplies from contamination. RPZDs may also be known as reduced pressure principle (RP), reduced pressure principle backflow prevention devices, [1] [2] reduced pressure zone assemblies (RPZA), [3] or reduced pressure principle ...

  9. Category:.22 Winchester Magnum firearms - Wikipedia

    en.wikipedia.org/wiki/Category:.22_Winchester...

    Pages in category ".22 Winchester Magnum firearms" The following 40 pages are in this category, out of 40 total. This list may not reflect recent changes. A.