{"id":2340,"date":"2022-09-02T03:22:00","date_gmt":"2022-09-02T03:22:00","guid":{"rendered":"https:\/\/xintaivalves.com\/?p=2340"},"modified":"2024-09-26T15:34:37","modified_gmt":"2024-09-26T07:34:37","slug":"what-are-the-three-types-of-control-valves","status":"publish","type":"post","link":"https:\/\/www.xintaivalves.com\/vi\/blog\/what-are-the-three-types-of-control-valves\/","title":{"rendered":"Ba lo\u1ea1i van \u0111i\u1ec1u khi\u1ec3n l\u00e0 g\u00ec?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">M\u1ee5c l\u1ee5c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Chuy\u1ec3n \u0111\u1ed5i m\u1ee5c l\u1ee5c\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Chuy\u1ec3n \u0111\u1ed5i<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.xintaivalves.com\/vi\/blog\/what-are-the-three-types-of-control-valves\/#What_Is_a_Control_Valve\" >Van \u0111i\u1ec1u khi\u1ec3n l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.xintaivalves.com\/vi\/blog\/what-are-the-three-types-of-control-valves\/#What_Are_the_Three_Types_of_Control_Valves\" >Ba lo\u1ea1i van \u0111i\u1ec1u khi\u1ec3n l\u00e0 g\u00ec?<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.xintaivalves.com\/vi\/product\/control-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><em>van \u0111i\u1ec1u khi\u1ec3n<\/em><\/strong><\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 thay \u0111\u1ed5i d\u00f2ng ch\u1ea3y c\u1ee7a ch\u1ea5t kh\u00ed ho\u1eb7c ch\u1ea5t l\u1ecfng. H\u1ecd c\u00f3 m\u1ed9t s\u1ed1 l\u1ee3i th\u1ebf. \u0110\u00e1ng tin c\u1eady nh\u1ea5t l\u00e0 c\u00e1c b\u1ed9 truy\u1ec1n \u0111\u1ed9ng kh\u00ed n\u00e9n, nh\u1eadn t\u00edn hi\u1ec7u t\u1eeb b\u1ed9 \u0111i\u1ec1u khi\u1ec3n v\u00e0 di chuy\u1ec3n \u0111\u1ebfn m\u1ed9t v\u1ecb tr\u00ed c\u1ee5 th\u1ec3 khi nh\u1eadn \u0111\u01b0\u1ee3c t\u00edn hi\u1ec7u. H\u1ea1n ch\u1ebf l\u00e0 b\u1ed9 truy\u1ec1n \u0111\u1ed9ng kh\u00ed n\u00e9n c\u00f3 xu h\u01b0\u1edbng h\u1ecfng n\u1ebfu t\u00edn hi\u1ec7u \u0111i\u1ec1u khi\u1ec3n b\u1ecb m\u1ea5t. V\u00ec nh\u1eefng l\u00fd do n\u00e0y, ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c quy tr\u00ecnh y\u00eau c\u1ea7u ki\u1ec3m so\u00e1t d\u00f2ng ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Van c\u1ed5ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u lo\u1ea1i \u1ee9ng d\u1ee5ng, bao g\u1ed3m c\u1ea3 nh\u1eefng \u1ee9ng d\u1ee5ng c\u00f3 th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng cao v\u00e0 v\u1eadt li\u1ec7u \u0103n m\u00f2n. Van c\u1ed5ng th\u01b0\u1eddng kh\u00f4ng th\u00edch h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 v\u1eady. Ch\u00fang n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi d\u1ecbch v\u1ee5 s\u1ea1ch s\u1ebd v\u00e0 ch\u00fang kh\u00f4ng c\u00f3 \u00e1p su\u1ea5t cao. Van b\u01b0\u1edbm th\u01b0\u1eddng \u0111\u01b0\u1ee3c khuy\u00ean d\u00f9ng cho c\u00e1c d\u1ecbch v\u1ee5 \u00e1p su\u1ea5t th\u1ea5p v\u00e0 van t\u1eeb 4 inch (100 mm) tr\u1edf l\u00ean. Tuy nhi\u00ean, ch\u00fang c\u00f3 th\u1ec3 b\u1ecb t\u1eafc v\u1edbi c\u00e1c m\u1ea3nh v\u1ee5n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_a_Control_Valve\"><\/span><strong>Van \u0111i\u1ec1u khi\u1ec3n l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Van \u0111i\u1ec1u khi\u1ec3n l\u00e0 g\u00ec? N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, \u0111\u00f3 l\u00e0 m\u1ed9t chi\u1ebfc van ki\u1ec3m so\u00e1t l\u01b0\u1ee3ng ch\u1ea5t l\u1ecfng ch\u1ea3y qua n\u00f3. N\u00f3 thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc c\u1ee7a d\u00f2ng ch\u1ea3y theo t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c g\u1eedi b\u1edfi b\u1ed9 \u0111i\u1ec1u khi\u1ec3n. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p n\u00f3 ki\u1ec3m so\u00e1t tr\u1ef1c ti\u1ebfp s\u1ed1 l\u01b0\u1ee3ng quy tr\u00ecnh ho\u1eb7c t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y. Vi\u1ec7c s\u1eed d\u1ee5ng n\u00f3 trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t r\u1ea5t \u0111a d\u1ea1ng, t\u1eeb d\u01b0\u1ee3c ph\u1ea9m \u0111\u1ebfn h\u00f3a ch\u1ea5t. \u0110\u00e2y l\u00e0 m\u1ed9t s\u1ed1 c\u00e1ch n\u00f3 c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t van \u0111i\u1ec1u khi\u1ec3n thay \u0111\u1ed5i l\u01b0u l\u01b0\u1ee3ng kh\u00ed ho\u1eb7c ch\u1ea5t l\u1ecfng. N\u00f3 c\u00f3 th\u1ec3 l\u00e0 quay ho\u1eb7c tuy\u1ebfn t\u00ednh. C\u00e1c lo\u1ea1i n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng v\u1edbi c\u00e1c bi\u1ebfn th\u1ec3 nh\u1ecf trong t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c g\u1eedi b\u1edfi m\u00e1y ph\u00e1t ho\u1eb7c m\u00e1y t\u00ednh. H\u1ea7u h\u1ebft c\u00e1c van \u0111i\u1ec1u khi\u1ec3n \u0111\u1ec1u c\u00f3 thi\u1ebft b\u1ecb truy\u1ec1n \u0111\u1ed9ng b\u1eb1ng kh\u00ed n\u00e9n, c\u00f3 th\u1ec3 l\u00e0 m\u00e0ng ng\u0103n \u0111\u1ed1i di\u1ec7n v\u1edbi l\u00f2 xo ho\u1eb7c p\u00edt-t\u00f4ng. Ch\u00fang l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi cho nhi\u1ec1u \u1ee9ng d\u1ee5ng. H\u01a1n n\u1eefa, ch\u00fang c\u00f3 s\u1eb5n trong nhi\u1ec1u v\u1eadt li\u1ec7u kh\u00e1c nhau v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Are_the_Three_Types_of_Control_Valves\"><\/span><strong>Ba lo\u1ea1i van \u0111i\u1ec1u khi\u1ec3n l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 ba lo\u1ea1i van c\u01a1 b\u1ea3n. Chuy\u1ec3n \u0111\u1ed9ng tuy\u1ebfn t\u00ednh, b\u00f3ng v\u00e0 van c\u1ea7u l\u00e0 ba v\u00ed d\u1ee5 v\u1ec1 van chuy\u1ec3n \u0111\u1ed9ng tuy\u1ebfn t\u00ednh. M\u1ed7i c\u00e1i c\u00f3 m\u1ed9t m\u1ee5c \u0111\u00edch v\u00e0 c\u01a1 ch\u1ebf kh\u00e1c nhau \u0111\u1ec3 ki\u1ec3m so\u00e1t d\u00f2ng ch\u1ea3y. C\u01a1 ch\u1ebf \u0111i\u1ec1u khi\u1ec3n c\u1ee7a m\u1ed7i van ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i b\u1ed9 ph\u1eadn \u0111\u00f3ng, v\u1ecb tr\u00ed c\u1ee7a n\u00f3 v\u00e0 t\u00ecnh hu\u1ed1ng y\u00eau c\u1ea7u ph\u1ea3i c\u00f3 van. Van chuy\u1ec3n \u0111\u1ed9ng tuy\u1ebfn t\u00ednh s\u1eed d\u1ee5ng m\u1ed9t thi\u1ebft b\u1ecb \u0111\u00f3ng di chuy\u1ec3n theo \u0111\u01b0\u1eddng th\u1eb3ng, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u0129a ho\u1eb7c thanh linh ho\u1ea1t . V\u00ec c\u00e1c van chuy\u1ec3n \u0111\u1ed9ng tuy\u1ebfn t\u00ednh s\u1eed d\u1ee5ng chuy\u1ec3n \u0111\u1ed9ng tuy\u1ebfn t\u00ednh \u0111\u1ec3 \u0111\u00f3ng van n\u00ean ch\u00fang c\u00f3 xu h\u01b0\u1edbng ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c h\u01a1n v\u00e0 ch\u1eadm h\u01a1n.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>van c\u1ea7u<\/strong><\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 ba lo\u1ea1i van c\u1ea7u: b\u00f3ng, b\u01b0\u1edbm v\u00e0 ki\u1ec3m tra. T\u00f9y thu\u1ed9c v\u00e0o \u1ee9ng d\u1ee5ng, m\u1ed7i lo\u1ea1i c\u00f3 th\u1ec3 x\u1eed l\u00fd nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau. Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, ch\u00fang y\u00eau c\u1ea7u ng\u1eaft \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee7a ASME lo\u1ea1i II ho\u1eb7c lo\u1ea1i IV. Ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u01b0u cho van c\u1ea7u kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ebf t\u1ea1o n\u00f3. N\u00f3i chung, nhi\u1ec7t \u0111\u1ed9 dao \u0111\u1ed9ng t\u1eeb -425\u00b0F \u0111\u1ebfn 1100\u00b0F.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Van chuy\u1ec3n \u0111\u1ed9ng tuy\u1ebfn t\u00ednh<\/strong><\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1ecb tr\u01b0\u1eddng Van \u0111i\u1ec1u khi\u1ec3n chuy\u1ec3n \u0111\u1ed9ng tuy\u1ebfn t\u00ednh to\u00e0n c\u1ea7u c\u00f3 t\u00ednh c\u1ea1nh tranh cao v\u00e0 ph\u00e2n m\u1ea3nh. M\u1ed9t s\u1ed1 ng\u01b0\u1eddi ch\u01a1i th\u00e0nh danh \u0111\u00e3 \u00e1p d\u1ee5ng c\u00e1c chi\u1ebfn l\u01b0\u1ee3c kh\u00e1c nhau \u0111\u1ec3 t\u0103ng th\u1ecb ph\u1ea7n c\u1ee7a h\u1ecd. B\u00e1o c\u00e1o n\u00e0y m\u00f4 t\u1ea3 c\u00e1c nh\u00e0 cung c\u1ea5p ho\u1ea1t \u0111\u1ed9ng tr\u00ean th\u1ecb tr\u01b0\u1eddng d\u1ef1a tr\u00ean gi\u00e1 c\u1ea3, ch\u1ea5t l\u01b0\u1ee3ng, th\u01b0\u01a1ng hi\u1ec7u v\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t c\u1ee7a s\u1ea3n ph\u1ea9m. B\u00e1o c\u00e1o c\u0169ng bao g\u1ed3m c\u00e1c \u0111\u1ed9ng l\u1ef1c c\u1ee7a th\u1ecb tr\u01b0\u1eddng, bao g\u1ed3m doanh thu, quy m\u00f4 th\u1ecb tr\u01b0\u1eddng, kh\u1ed1i l\u01b0\u1ee3ng s\u1ea3n xu\u1ea5t v\u00e0 ti\u00eau th\u1ee5. B\u00e1o c\u00e1o c\u0169ng cung c\u1ea5p d\u1eef li\u1ec7u c\u00f3 th\u1ec3 gi\u00fap nh\u1eefng ng\u01b0\u1eddi ra quy\u1ebft \u0111\u1ecbnh \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t. B\u00e1o c\u00e1o c\u0169ng bao g\u1ed3m nh\u1eefng \u0111\u00f3ng g\u00f3p t\u1eeb nh\u1eefng ng\u01b0\u1eddi ch\u01a1i h\u00e0ng \u0111\u1ea7u trong ng\u00e0nh.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>van bi<\/strong><\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 nhi\u1ec1u lo\u1ea1i van \u0111i\u1ec1u khi\u1ec3n kh\u00e1c nhau, m\u1ed7i lo\u1ea1i c\u00f3 m\u1ed9t m\u1ee5c \u0111\u00edch c\u1ee5 th\u1ec3. M\u1ed9t s\u1ed1 t\u1ef1 v\u1eadn h\u00e0nh, trong khi m\u1ed9t s\u1ed1 kh\u00e1c \u0111\u01b0\u1ee3c v\u1eadn h\u00e0nh th\u1ee7 c\u00f4ng. M\u1ed9t s\u1ed1 \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi \u0111i\u1ec7n ho\u1eb7c kh\u00ed n\u00e9n. Hai lo\u1ea1i c\u00f2n l\u1ea1i \u0111\u01b0\u1ee3c v\u1eadn h\u00e0nh b\u1eb1ng tay ho\u1eb7c c\u00f3 b\u1ed9 truy\u1ec1n \u0111\u1ed9ng s\u1eed d\u1ee5ng kh\u00f4ng kh\u00ed. Nhi\u1ec1u lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ebf t\u1ea1o c\u00e1c van n\u00e0y, t\u1eeb kim lo\u1ea1i \u0111\u1ebfn phi kim lo\u1ea1i. Ba lo\u1ea1i c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 ki\u1ec3m so\u00e1t lu\u1ed3ng trong m\u1ed9t \u1ee9ng d\u1ee5ng nh\u1ea5t \u0111\u1ecbnh.<\/p>","protected":false},"excerpt":{"rendered":"<p>Control valves are used to vary the flow of gas or liquid. They have several advantages. The most reliable are the pneumatic actuators, which receive a signal from a controller and move to a specific position when the signal is received. The drawback is that pneumatic actuators tend to fail if the control signal is [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1558,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[202,198,194],"class_list":["post-2340","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-control-valves","tag-industrial-valve","tag-valve-manufacturer"],"_links":{"self":[{"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/posts\/2340","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/comments?post=2340"}],"version-history":[{"count":2,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/posts\/2340\/revisions"}],"predecessor-version":[{"id":2344,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/posts\/2340\/revisions\/2344"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/media\/1558"}],"wp:attachment":[{"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/media?parent=2340"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/categories?post=2340"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/tags?post=2340"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}