{"id":5592,"date":"2020-04-25T03:44:26","date_gmt":"2020-04-25T03:44:26","guid":{"rendered":"https:\/\/www.stvvalves.com\/?p=5592"},"modified":"2020-05-04T04:51:05","modified_gmt":"2020-05-04T04:51:05","slug":"introduction-of-the-function-of-check-valve-and-the-analysis-of-the-reason-why-check-valve-doesnt-work","status":"publish","type":"post","link":"https:\/\/www.stvvalves.com\/ro\/introduction-of-the-function-of-check-valve-and-the-analysis-of-the-reason-why-check-valve-doesnt-work\/","title":{"rendered":"Introducerea func\u021biei supapei de re\u021binere \u0219i analiza motivului pentru care supapa de re\u021binere nu func\u021bioneaz\u0103"},"content":{"rendered":"

Func\u021bia supapei de re\u021binere
Rezisten\u021ba la fluid a supapei de re\u021binere a balansului este, \u00een general, mai mic\u0103 dec\u00e2t cea a supapei de re\u021binere a ridic\u0103rii, care poate fi \u00eemp\u0103r\u021bit\u0103 \u00een trei tipuri: balansare cu un singur disc, balansare cu dou\u0103 discuri \u0219i balansare cu mai multe discuri. Supapa de re\u021binere oscilant\u0103 este potrivit\u0103 pentru ocazii de calibru mare. Pentru supapa de re\u021binere batant\u0103 mai mare de 80 mm instalat\u0103 la ie\u0219irea pompei, se va adopta metoda de instalare orizontal\u0103 pentru a reduce pozi\u021bionarea discului supapei \u0219i impactul. Pentru conducta cu diametrul supapei de re\u021binere la ie\u0219irea pompei mai mare sau egal cu 150 mm, bypass-ul trebuie setat \u00eenainte \u0219i dup\u0103 supapa de re\u021binere pentru a preveni deteriorarea suprafe\u021bei de etan\u0219are a supapei de re\u021binere cauzat\u0103 de presiunea ridicat\u0103. se ridic\u0103 \u00een fa\u021ba supapei.
Motivul pentru care supapa de re\u021binere nu func\u021bioneaz\u0103<\/p>\n\n\n\n

  1. Supapa de re\u021binere este instalat\u0103 invers. Arat\u0103 c\u0103 mediul conductei curge, iar supapa de re\u021binere blocheaz\u0103 fluxul.<\/li>
  2. Selectarea sau instalarea gre\u0219it\u0103 a supapei de re\u021binere, cum ar fi instalarea vertical\u0103 a supapei de re\u021binere \u00een conducta vertical\u0103. De exemplu, supapa de re\u021binere a ridic\u0103rii conectat\u0103 la flan\u0219\u0103 este instalat\u0103 vertical cu conducta. Mediul intr\u0103 din orificiul de admisie a apei \u0219i \u00eempinge discul \u00een sus. Mediul curge prin scaunul supapei c\u0103tre o alt\u0103 ie\u0219ire a supapei de re\u021binere. For\u021ba de \u00eempingere a discului este mai mic\u0103 dec\u00e2t gravita\u021bia discului, iar discul va c\u0103dea \u00een mod natural pe scaunul supapei. Dac\u0103 supapa este instalat\u0103 vertical, gravita\u021bia discului supapei este suportat\u0103 de supapa de re\u021binere a ridic\u0103rii conectat\u0103 la flan\u0219\u0103, iar mediul \u00eempinge discul supapei, \u00eempinge discul supapei doar orizontal, iar discul supapei nu poate c\u0103dea \u00eenapoi pe scaunul supapei. \u00een mod natural, ceea ce face ca supapa de re\u021binere a ridic\u0103rii conectat\u0103 la flan\u0219\u0103 s\u0103 \u00ee\u0219i piard\u0103 func\u021bia.<\/li>
  3. P\u0103r\u021bile interne ale supapei de re\u021binere sunt ruginite. Este prezentat ca piesele de conectare \u00een interiorul supapei de re\u021binere oscilante.<\/li>
  4. Discul supapei nu este \u00eenchis etan\u0219 din cauza bloc\u0103rii corpurilor str\u0103ine<\/li>
  5. Discul supapei este rupt sau are o gaur\u0103 de nisip.
    <\/li>
  6. Supapele de re\u021binere produse de Stv Valve Technology Group Co., limitate includ supap\u0103 de re\u021binere pivotant\u0103, supap\u0103 de re\u021binere de ridicare, supap\u0103 de re\u021binere ANSI, supap\u0103 de re\u021binere DIN, supap\u0103 de re\u021binere din o\u021bel turnat, supap\u0103 de re\u021binere din o\u021bel forjat \u0219i alte materiale.<\/li><\/ol>\n\n\n\n
    \"\"<\/figure>","protected":false},"excerpt":{"rendered":"

    Function of check valveThe fluid resistance of swing check valve is generally less than that of lift check valve, which can be divided into three types: single disc swing, double disc swing and multi disc swing. Swing check valve is suitable for large caliber occasions. For the swing check valve larger than 80mm installed at […]<\/p>\n","protected":false},"author":290641,"featured_media":5593,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,1],"tags":[],"class_list":["post-5592","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news","category-news-events"],"_links":{"self":[{"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/posts\/5592","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=5592"}],"version-history":[{"count":2,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/posts\/5592\/revisions"}],"predecessor-version":[{"id":5596,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/posts\/5592\/revisions\/5596"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/media\/5593"}],"wp:attachment":[{"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/media?parent=5592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/categories?post=5592"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/tags?post=5592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}