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Component parts for ball valves

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Kran sharovoy — eto raznovidnost' truboprovodnoy armatury, zapornyy element kotoroy imeyet formu shara, soyedinennyy s rukoyatkoy i prednaznachennyy dlya perekrytiya potoka rabochey sredy v truboprovode. Pri povorote rukoyatki shar vrashchayetsya vokrug svoyey osi, kotoraya raspolozhena perpendikulyarno po otnosheniyu k potoku rabochey sredy i tem samym proiskhodit otkrytiye ili zakrytiye sharovogo krana.

Krany sharovyye na segodnyashniy den' yavlyayutsya odnim iz samykh populyarnykh vidov zapornoy armatury, ispol'zuyemoy na promyshlennykh ob"yektakh s truboprovodnymi kommunikatsiyami v teplovoy, khimicheskoy, neftekhimicheskoy, neftepererabatyvayushchey, gazovoy i drugikh otraslyakh promyshlennosti s transportirovkoy vody, para, gazovykh smesey, nefteproduktov, khimicheskikh smesey. Oni praktichny i kompaktny, nadozhny v ekspluatatsii i neprikhotlivy dlya razlichnykh klimaticheskikh usloviy.

V zavisimosti ot naznacheniya razlichayutsya krany sharovyye zaporno-reguliruyushchiye, krany sharovyye zapornyye dlya nefteprovodov, krany sharovyye flantsevyye polnoprokhodnyye, krany sharovyye flantsevyye redutsirovannyye. Po tipu prisoyedineniya k truboprovodu sushchestvuyut flantsevyye po GOST 33259-2015 ili ASME B16.5 i ASME B16.47 i privarnyye po GOST 16037-80 ili ASME B16.25 krany. V sootvetstvii s etim v konstruktsii uchastvuyut raznyye tipy patrubkov. Dlya kazhdogo vida armatury Zavod kol'tsevykh zagotovok izgotavlivayet individual'nyye komplektuyushchiye detali kranov sharovykh, predstavlyayushchiye iz sebya stal'nyye fasonnyye zagotovki s predvaritel'noy mekhanicheskoy obrabotkoy na tokarnykh stankakh, s 100% kontrolem UZK, kotoryye maksimal'no povtoryayut po naruzhnomu konturu chistovyye razmery izdeliy. Eto budushchiye detali:

  • patrubok flantsevyy ili privarnoy;
  • korpus krana;
  • shtutsernyye flantsy korpusa;
  • gorlovina;
  • sodla;
  • sharovaya probka;

Massy takikh zagotovok dostigayut 2 tn, a nominal'nyy diametr poroy dostigayet 1400 mm.

Komplektuyushchiye detali kranov sharovykh izgotavlivayutsya iz marok staley 20, 20L, 09G2S, 20GL, 12KH18N10T, 10KH17N13M2T. Detali konstruktsii sharovykh kranov raznoobrazny i primenyayutsya v zavisimosti ot sfery primeneniya. Ispolneniye vybirayetsya po usloviyam ekspluatatsii, sostavu i temperature rabochey sredy, temperature okruzhayushchego vozdukha.

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A ball valve is a type of pipeline fittings, the shut-off element of which is in the shape of a ball, connected to the handle and designed to shut off the flow of the working medium in the pipeline. When the handle is turned, the ball rotates around its axis, which is located perpendicular to the flow of the working medium, and thus the ball valve opens or closes.

Ball valves today are one of the most popular types of valves used at industrial facilities with pipeline communications in thermal, chemical, petrochemical, oil refining, gas and other industries with the transportation of water, steam, gas mixtures, oil products, chemical mixtures. They are practical and compact, reliable in operation and unpretentious for various climatic conditions.

Depending on the purpose, there are different shut-off and control ball valves, shut-off ball valves for oil pipelines, full-bore flanged ball valves, reduced flanged ball valves. By the type of connection to the pipeline, there are flanged valves in accordance with GOST 33259-2015 or ASME B16.5 and ASME B16.47 and welded valves in accordance with GOST 16037-80 or ASME B16.25. In accordance with this, different types of branch pipes are involved in the design. For each type of fittings, the Ring Billet Plant manufactures individual components for ball valves, which are steel shaped blanks with preliminary machining on lathes, with 100% ultrasonic inspection, which maximally repeat the final dimensions of the products along the outer contour. These are the future details:

  • branch pipe flanged or welded;
  • valve body;
  • body flanges;
  • neckline;
  • saddles;
  • ball plug;

The mass of such workpieces reaches 2 tons, and the nominal diameter sometimes reaches 1400 mm.

Component parts of ball valves are made of steel grades 20, 20L, 09G2S, 20GL, 12X18H10T, 10X17H13M2T. The design details of ball valves are varied and are used depending on the application. The version is selected according to the operating conditions, composition and temperature of the working medium, and the ambient temperature.

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