{"id":6414,"date":"2022-06-09T22:27:52","date_gmt":"2022-06-09T14:27:52","guid":{"rendered":"https:\/\/www.stvvalves.com\/?p=6414"},"modified":"2023-09-28T13:29:15","modified_gmt":"2023-09-28T05:29:15","slug":"what-is-a-backseat-of-gate-valve","status":"publish","type":"post","link":"https:\/\/www.stvvalves.com\/ro\/what-is-a-backseat-of-gate-valve\/","title":{"rendered":"Ce este bancheta din spate a valvei de poart\u0103"},"content":{"rendered":"<p><!--StartFragment --><\/p>\n<div><a href=\"https:\/\/www.linkedin.com\/pulse\/gate-globe-valves-backseat-use-clear-up-michel-fran%C3%A7ois-bolle\" target=\"_blank\" rel=\"noopener\">Ce este bancheta din spate?<\/a>Un bancheta din spate este un aranjament de scaune \u00een interiorul capotei. Ofer\u0103 o etan\u0219are \u00eentre tij\u0103 \u0219i capot\u0103 \u0219i previne cre\u0219terea presiunii sistemului \u00eempotriva garniturii supapei atunci c\u00e2nd supapa este complet deschis\u0103. Scaunele din spate sunt adesea aplicate \u00een supapele cu poart\u0103 \u0219i cu glob (surs\u0103: wermac.org).<\/div>\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-featured wp-image-6415\" src=\"https:\/\/www.stvvalves.com\/wp-content\/uploads\/2022\/06\/what-is-a-backseat-of-gate-valve-864x430.png\" alt=\"\" width=\"864\" height=\"430\" \/><\/div>\n<div>Cum se folose\u0219te bancheta din spate?<\/div>\n<div>Bancheta din spate ar trebui folosit\u0103 numai pentru a izola garnitura presetupei de mediul de conduct\u0103, de exemplu atunci c\u00e2nd scurgerile garniturii sunt evidente \u0219i p\u00e2n\u0103 c\u00e2nd supapa poate fi depresurizat\u0103 \u0219i reparat\u0103.<\/div>\n<div><\/div>\n<div>Cum s\u0103 nu folose\u0219ti bancheta din spate?<\/div>\n<div>\u00cen nici un caz bancheta din spate nu trebuie utilizat\u0103 pentru a permite \u00eenlocuirea sau repararea garniturii \u00een timp ce supapa \u0219i sistemul sunt sub presiune. Dup\u0103 ce am clarificat aceste 3 \u00eentreb\u0103ri, problema pare destul de simpl\u0103.<\/div>\n<div>Dar nu este! Una dintre cele mai frecvente erori f\u0103cute la fa\u021ba locului este s\u0103 credem c\u0103, dac\u0103 valva este amplasat\u0103 \u00een spate (pozi\u021bie complet deschis\u0103 \u2013 \u0219i etan\u0219area banchetei din spate este realizat\u0103), acest lucru va ajuta la prevenirea uzurii inelelor de etan\u0219are.<\/div>\n<div>Din p\u0103cate, utilizarea banchetei din spate \u00een acest mod pe o perioad\u0103 mai lung\u0103 de timp ar putea duce la unele probleme grave: a) Deoarece corpul, capota, tija \u0219i discul se \u00eenc\u0103lzesc \u0219i se extind la ritmuri diferite, experien\u021ba arat\u0103 c\u0103 supapa se poate bloca\/ blocat \u00een pozi\u021bie a\u0219ezat\u0103 \u00een spate.b) Garnitura presetupei se va usca, deoarece nu este expus\u0103 la abur \u0219i ar putea sufla imediat la \u00eenchiderea supapei. Regula simpl\u0103, dar important\u0103 pentru utilizatorii de supap\u0103, prevenind utilizarea gre\u0219it\u0103 a banchetei din spate! \u201eO dat\u0103 supapa este adus\u0103 \u00een pozi\u021bie complet deschis\u0103 (\u00een spate), \u00eentoarce\u021bi roata de m\u00e2n\u0103 \u00eenapoi cu o tur\u0103 complet\u0103\u201d (acest lucru ar trebui s\u0103 fie precizat clar \u00een fiecare manual de instalare, \u00eentre\u021binere \u0219i operare al produc\u0103torilor de supape), Cealalt\u0103 problem\u0103 experien\u021ba utilizatorilor de supape este problema cu supapele actionate. Nu conteaz\u0103 dac\u0103 sunt folosite actuatoare electrice, pneumatice sau hidraulice. Dac\u0103 produc\u0103torul supapei nu regleaz\u0103 corect actuatorul \u00een pozi\u021bia deschis\u0103, vom reveni la acelea\u0219i probleme (a\u0219a cum este descris mai devreme). Experien\u021b\u0103 pe teren cu supape de scurgere de \u00eenalt\u0103 presiune\/temperatur\u0103 (supap\u0103 glob), ac\u021bionate pneumatic \u0219i, de obicei, \u00een pozi\u021bie deschis\u0103 sigur\u0103, ar\u0103t\u00e2nd \u00een mod clar utilizarea prematur\u0103 a inelelor de etan\u0219are a glandei.<\/div>\n<div><\/div>\n<div>China <a href=\"https:\/\/www.stvvalves.com\/ro\/wholesale\/gate-valve\/stainless-steel-gate-valve\/\">Supap\u0103 cu poart\u0103 din o\u021bel inoxidabil<\/a> Produc\u0103tor Stv furnizeaz\u0103 robinet de gur\u0103 din o\u021bel inoxidabil, robinet de o\u021bel inoxidabil, pute\u021bi cump\u0103ra o supap\u0103 de o\u021bel inoxidabil de bun\u0103 calitate, suntem distribuitor de supape de o\u021bel inoxidabil \u0219i produc\u0103tor de supape de o\u021bel inoxidabil de pe pia\u021ba din China.<\/div>","protected":false},"excerpt":{"rendered":"<p>What\u00a0is\u00a0a\u00a0backseat?A\u00a0backseat\u00a0is\u00a0a\u00a0seating\u00a0arrangement\u00a0inside\u00a0the\u00a0bonnet.\u00a0It\u00a0provides\u00a0a\u00a0seal\u00a0between\u00a0the\u00a0stem\u00a0and\u00a0bonnet\u00a0and\u00a0prevents\u00a0system\u00a0pressure\u00a0from\u00a0building\u00a0against\u00a0the\u00a0valve\u00a0packing\u00a0when\u00a0the\u00a0valve\u00a0is\u00a0fully\u00a0open.\u00a0Back\u00a0seats\u00a0are\u00a0often\u00a0applied\u00a0in\u00a0gate\u00a0and\u00a0globe\u00a0valves\u00a0(source:\u00a0wermac.org). How to use the backseat? The backseat should only be used to isolate the gland packing from the line medium for example when gland packing leakage is evident and until the valve can be de-pressurised and repaired. How to not use the backseat? Under no circumstances should the\u00a0\u00a0backseat be used to allow gland packing [&hellip;]<\/p>\n","protected":false},"author":290641,"featured_media":6415,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,1],"tags":[1505],"class_list":["post-6414","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news","category-news-events","tag-backseat-of-gate-valve"],"_links":{"self":[{"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/posts\/6414","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=6414"}],"version-history":[{"count":1,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/posts\/6414\/revisions"}],"predecessor-version":[{"id":6416,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/posts\/6414\/revisions\/6416"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/media\/6415"}],"wp:attachment":[{"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/media?parent=6414"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/categories?post=6414"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/tags?post=6414"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}