{"id":4484,"date":"2019-03-18T13:53:31","date_gmt":"2019-03-18T13:53:31","guid":{"rendered":"https:\/\/www.stvvalves.com\/?p=4484"},"modified":"2024-12-25T14:36:06","modified_gmt":"2024-12-25T06:36:06","slug":"what-is-the-selection-principle-of-the-forged-steel-globe-valve","status":"publish","type":"post","link":"https:\/\/www.stvvalves.com\/ro\/what-is-the-selection-principle-of-the-forged-steel-globe-valve\/","title":{"rendered":"Care este principiul de selec\u021bie al supapei cu glob din o\u021bel forjat?"},"content":{"rendered":"

Principiul de selec\u021bie este urm\u0103torul: 1. Supapele cu glob din o\u021bel forjat trebuie utilizate pe conducte sau dispozitive cu mediu de temperatur\u0103 \u00eenalt\u0103 \u0219i presiune \u00eenalt\u0103. Cum ar fi centrale termice, centrale nucleare, conducte de \u00eenalt\u0103 temperatur\u0103, de \u00eenalt\u0103 presiune ale sistemelor petrochimice. 2. Pe conduct\u0103 unde rezisten\u021ba la curgere nu este strict\u0103 pe conduct\u0103. Adic\u0103 locul unde nu se ia \u00een considerare pierderea de presiune. 3. Supapele mici pot fi utilizate cu supape cu ac, supape de instrument, supape de e\u0219antionare, supape de manometru etc. 4, exist\u0103 reglarea debitului sau reglarea presiunii, dar precizia de reglare nu este mare, iar diametrul conductei este relativ mic, cum ar fi ca diametrul nominal al conductei \u2264 50 mm, ar trebui utilizat. 5. Pentru \u00eengr\u0103\u0219\u0103mintele chimice mici \u0219i \u00eengr\u0103\u0219\u0103mintele chimice mari \u00een produc\u021bia industrial\u0103 sintetic\u0103, ar trebui s\u0103 se utilizeze supape de \u00eenchidere din o\u021bel forjat cu unghi de \u00eenalt\u0103 presiune sau supape de accelera\u021bie cu unghi de \u00eenalt\u0103 presiune cu presiune nominal\u0103 PN160 presiune nominal\u0103 16MPa sau PN320 presiune nominal\u0103 32MPa. 6. \u00cen atelierul de desiliconizare \u0219i conducta de cocsificare u\u0219oar\u0103 \u00een produc\u021bia de alumin\u0103 metoda Bayer, este u\u0219or s\u0103 selecta\u021bi supapa de forjare DC sau supapa de accelera\u021bie DC cu corpul supapei separat, scaunul supapei poate fi \u00eendep\u0103rtat \u0219i etan\u0219area din carbur\u0103 pereche. . 7. \u00cen proiectele de alimentare cu ap\u0103 \u0219i \u00eenc\u0103lzire \u00een construc\u021bii urbane, se \u0219tie c\u0103 trece prin conducte mai mici, iar supapa de \u00eentrerupere, de echilibrare sau supap\u0103 cu piston poate fi utilizat\u0103, cum ar fi conducta care trece de valoarea nominal\u0103 mai mic\u0103 de 150 mm.<\/p>\n

Principalele avantaje ale supapelor cu glob din o\u021bel forjat<\/p>\n

Cele mai evidente avantaje ale supapei cu glob din o\u021bel forjat sunt: \u00cen timpul procesului de deschidere \u0219i \u00eenchidere, frecarea dintre clapeta supapei \u0219i suprafa\u021ba de etan\u0219are a corpului supapei este mai mic\u0103 dec\u00e2t cea a supapei cu gur\u0103, deci este rezistent\u0103 la uzur\u0103. \u00cen\u0103l\u021bimea deschiderii este, \u00een general, de numai 1\/4 din diametrul canalului scaunului \u0219i, prin urmare, mult mai mic\u0103 dec\u00e2t supapa de deschidere. De obicei, exist\u0103 o singur\u0103 suprafa\u021b\u0103 de etan\u0219are pe corpul supapei \u0219i pe clapeta supapei, astfel \u00eenc\u00e2t procesul de fabrica\u021bie este mai bun \u0219i u\u0219or de reparat. Temperatura aplicabil\u0103: -196\u00b0C~700\u00b0C Mod de conducere: manual\u0103, transmisie cu ro\u021bi conice, pneumatic\u0103, electric\u0103, hidraulic\u0103, leg\u0103tur\u0103 gaz-lichid, materialul corpului supapei de leg\u0103tur\u0103 electro-hidraulic: WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8(304), CF3 (304L), CF8M (316), CF3M (316L), Ti. Pot fi utilizate diferite materiale pentru ap\u0103, abur, ulei, acid azotic, acid acetic, mediu oxidant, uree \u0219i alte medii.<\/p>\n

\"\"<\/p>","protected":false},"excerpt":{"rendered":"

The selection principle is as follows: 1. Forged steel\u00a0globe valves should be used on the pipeline or device of high temperature and high pressure medium. Such as thermal power plants, nuclear power plants, high-temperature, high-pressure pipelines of petrochemical systems. 2. On the pipeline where the flow resistance is not strict on the pipeline. That is, […]<\/p>\n","protected":false},"author":290641,"featured_media":4283,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[612],"class_list":["post-4484","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news","tag-selection-principle-of-the-forged-steel-globe-valve"],"_links":{"self":[{"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/posts\/4484","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/users\/290641"}],"replies":[{"embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/comments?post=4484"}],"version-history":[{"count":1,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/posts\/4484\/revisions"}],"predecessor-version":[{"id":7736,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/posts\/4484\/revisions\/7736"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/media\/4283"}],"wp:attachment":[{"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/media?parent=4484"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/categories?post=4484"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/tags?post=4484"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}