{"id":657,"date":"2026-03-25T06:00:39","date_gmt":"2026-03-25T06:00:39","guid":{"rendered":"https:\/\/jstvalve.com\/?post_type=product&p=657"},"modified":"2026-04-01T06:11:01","modified_gmt":"2026-04-01T06:11:01","slug":"duplex-check-valve-manufacturer","status":"publish","type":"product","link":"https:\/\/jstvalve.com\/vi\/product\/duplex-check-valve-manufacturer\/","title":{"rendered":"Van m\u1ed9t chi\u1ec1u hai chi\u1ec1u"},"content":{"rendered":"
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\u0110\u1ecbnh ngh\u0129a v\u1ec1 v\u1eadt li\u1ec7u c\u1ee7a van m\u1ed9t chi\u1ec1u k\u00e9p<\/h6>\n

Th\u00e9p kh\u00f4ng g\u1ec9 hai pha l\u00e0 lo\u1ea1i th\u00e9p c\u00f3 c\u1ea5u tr\u00fac sau khi t\u00f4i ngu\u1ed9i bao g\u1ed3m m\u1ed9t n\u1eeda pha ferit v\u00e0 m\u1ed9t n\u1eeda pha austenit; n\u00f3i chung, h\u00e0m l\u01b0\u1ee3ng pha t\u1ed1i thi\u1ec3u ph\u1ea3i \u0111\u1ea1t m\u1ee9c 30%.<\/p>\n

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C\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt li\u1ec7u c\u1ee7a van m\u1ed9t chi\u1ec1u hai chi\u1ec1u<\/h6>\n
Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n<\/h6>\n

Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed5ng qu\u00e1t xu\u1ea5t s\u1eafc; v\u01b0\u1ee3t tr\u1ed9i h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9 trong h\u1ea7u h\u1ebft c\u00e1c m\u00f4i tr\u01b0\u1eddng. Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee5c b\u1ed9 xu\u1ea5t s\u1eafc, bao g\u1ed3m \u0103n m\u00f2n gi\u1eefa c\u00e1c h\u1ea1t, \u0103n m\u00f2n l\u1ed7 r\u1ed7 v\u00e0 \u0103n m\u00f2n khe h\u1edf; \u0111i\u1ec3m nhi\u1ec7t \u0111\u1ed9 \u0103n m\u00f2n (CPT) c\u1ee7a th\u00e9p Duplex th\u01b0\u1eddng \u00edt nh\u1ea5t l\u00e0 35\u00baC. Lo\u1ea1i th\u00e9p n\u00e0y c\u0169ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng n\u1ee9t do \u0103n m\u00f2n d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a clorua (SCC) \u1edf nhi\u1ec7t \u0111\u1ed9 l\u00ean \u0111\u1ebfn kho\u1ea3ng 150\u00baC. Th\u00e9p Duplex th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong c\u00e1c m\u00f4i tr\u01b0\u1eddng g\u00e2y h\u01b0 h\u1ecfng s\u1edbm cho c\u00e1c lo\u1ea1i th\u00e9p austenit. N\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng n\u01b0\u1edbc bi\u1ec3n t\u1ed1t h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9.<\/p>\n

Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t<\/h6>\n

M\u1eb7c d\u00f9 th\u00e9p Duplex c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a \u1edf nhi\u1ec7t \u0111\u1ed9 cao t\u1ed1t, nh\u01b0ng lo\u1ea1i th\u00e9p n\u00e0y \u2013 gi\u1ed1ng nh\u01b0 c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 Duplex kh\u00e1c \u2013 s\u1ebd b\u1ecb gi\u00f2n h\u00f3a n\u1ebfu \u0111\u01b0\u1ee3c gi\u1eef \u1edf nhi\u1ec7t \u0111\u1ed9 tr\u00ean 300\u00baC, d\u00f9 ch\u1ec9 trong th\u1eddi gian ng\u1eafn. N\u1ebfu \u0111\u00e3 b\u1ecb gi\u00f2n h\u00f3a, t\u00ecnh tr\u1ea1ng n\u00e0y ch\u1ec9 c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c b\u1eb1ng c\u00e1ch x\u1eed l\u00fd \u1ee7 h\u00f2a tan ho\u00e0n to\u00e0n. Th\u00e9p kh\u00f4ng g\u1ec9 Duplex h\u1ea7u nh\u01b0 kh\u00f4ng bao gi\u1edd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf nhi\u1ec7t \u0111\u1ed9 tr\u00ean 300\u00baC.<\/p>\n

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S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa van m\u1ed9t chi\u1ec1u \u0111\u01a1n v\u00e0 van m\u1ed9t chi\u1ec1u k\u00e9p l\u00e0 g\u00ec?<\/h6>\n

Van m\u1ed9t chi\u1ec1u \u0111\u01a1n gi\u00fap ng\u0103n ng\u1eeba nguy c\u01a1 \u00f4 nhi\u1ec5m do d\u00f2ng ch\u1ea3y ng\u01b0\u1ee3c v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng h\u00fat ng\u01b0\u1ee3c, trong khi van m\u1ed9t chi\u1ec1u \u0111\u00f4i th\u01b0\u1eddng l\u00e0 hai van m\u1ed9t chi\u1ec1u \u0111\u01a1n \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi nhau. Nh\u01b0 t\u00ean g\u1ecdi c\u1ee7a hai lo\u1ea1i van n\u00e0y \u0111\u00e3 g\u1ee3i \u00fd, van m\u1ed9t chi\u1ec1u \u0111\u00f4i d\u01b0\u1eddng nh\u01b0 ho\u1ea1t \u0111\u1ed9ng gi\u1ed1ng nh\u01b0 hai van m\u1ed9t chi\u1ec1u \u0111\u01a1n. Tr\u00ean th\u1ef1c t\u1ebf, van m\u1ed9t chi\u1ec1u \u0111\u00f4i c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o d\u1ef1 ph\u00f2ng an to\u00e0n n\u1ebfu m\u1ed9t trong hai van m\u1ed9t chi\u1ec1u \u0111\u01a1n b\u1ecb h\u1ecfng v\u00ec b\u1ea5t k\u1ef3 l\u00fd do n\u00e0o. H\u01a1n n\u1eefa, van m\u1ed9t chi\u1ec1u \u0111\u00f4i c\u00f2n c\u00f3 c\u00e1c \u1ed1c v\u00edt \u1edf m\u1ed7i b\u00ean c\u1ee7a van m\u1ed9t chi\u1ec1u \u0111\u01a1n \u0111\u1ec3 c\u00f3 th\u1ec3 m\u1edf v\u00e0 l\u00e0m s\u1ea1ch c\u1ed5ng van, v\u00ec c\u1eb7n b\u1ea9n c\u00f3 th\u1ec3 t\u00edch t\u1ee5 theo th\u1eddi gian.<\/p>\n

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Van m\u1ed9t chi\u1ec1u hai chi\u1ec1u \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/h6>\n

Van m\u1ed9t chi\u1ec1u hai l\u1edbp \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb h\u1ed7n h\u1ee3p pha austenit v\u00e0 pha ferrit. V\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao, van m\u1ed9t chi\u1ec1u hai l\u1edbp c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p kh\u00e1c nhau nh\u01b0 thi\u1ebft b\u1ecb d\u01b0\u1ee3c ph\u1ea9m, thi\u1ebft b\u1ecb h\u00f3a ch\u1ea5t, thi\u1ebft b\u1ecb x\u1eed l\u00fd n\u01b0\u1edbc bi\u1ec3n, trao \u0111\u1ed5i nhi\u1ec7t, s\u1ea3n xu\u1ea5t \u0111i\u1ec7n, h\u00f3a d\u1ea7u, x\u1eed l\u00fd kh\u00ed, h\u00f3a ch\u1ea5t chuy\u00ean d\u1ee5ng, v.v.<\/p>","protected":false},"excerpt":{"rendered":"

JST cung c\u1ea5p d\u00f2ng s\u1ea3n ph\u1ea9m van m\u1ed9t chi\u1ec1u hai chi\u1ec1u \u0111a d\u1ea1ng, ph\u00f9 h\u1ee3p v\u1edbi m\u1ecdi lo\u1ea1i \u1ee9ng d\u1ee5ng v\u00e0 ng\u00e0nh c\u00f4ng nghi\u1ec7p. \u0110\u1ed1i v\u1edbi van m\u1ed9t chi\u1ec1u hai t\u1ea5m, s\u1ea3n ph\u1ea9m tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n thi\u1ebft k\u1ebf JB\/T 8937 v\u00e0 API 594, ki\u1ec3u l\u1eafp wafer. V\u1ec1 c\u00e1c lo\u1ea1i k\u1ebft n\u1ed1i \u0111\u1ea7u \u1ed1ng: Flange RF, Wafer v\u00e0 Lug \u0111\u1ec1u l\u00e0 c\u00e1c lo\u1ea1i ti\u00eau chu\u1ea9n.<\/p>\n

C\u00e1c lo\u1ea1i van m\u1ed9t chi\u1ec1u JST Duplex kh\u00e1c bao g\u1ed3m van m\u1ed9t chi\u1ec1u Duplex ki\u1ec3u k\u00edn \u00e1p l\u1ef1c, van m\u1ed9t chi\u1ec1u Duplex ki\u1ec3u v\u00f2i phun, van m\u1ed9t chi\u1ec1u Duplex m\u1ed9t t\u1ea5m, van m\u1ed9t chi\u1ec1u Duplex ki\u1ec3u n\u00e2ng v\u00e0 van m\u1ed9t chi\u1ec1u Duplex ki\u1ec3u xoay.<\/p>","protected":false},"featured_media":697,"comment_status":"open","ping_status":"closed","template":"","meta":{"_angie_page":false,"_eb_attr":"","_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"product_brand":[],"product_cat":[30],"product_tag":[],"class_list":["post-657","product","type-product","status-publish","has-post-thumbnail","product_cat-check-valve","first","instock","shipping-taxable","product-type-simple","entry","content-bg","loop-entry"],"_links":{"self":[{"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/product\/657","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/comments?post=657"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/media\/697"}],"wp:attachment":[{"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/media?parent=657"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/product_brand?post=657"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/product_cat?post=657"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/product_tag?post=657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}