{"id":436,"date":"2026-09-14T02:48:14","date_gmt":"2026-09-14T02:48:14","guid":{"rendered":"https:\/\/wdlvalve.com\/?post_type=product&p=436"},"modified":"2026-09-18T02:28:46","modified_gmt":"2026-09-18T02:28:46","slug":"van-mot-chieu-xoay-asme-h44h","status":"publish","type":"product","link":"https:\/\/wdlvalve.com\/vi\/product\/van-mot-chieu-xoay-asme-h44h\/","title":{"rendered":"Van m\u1ed9t chi\u1ec1u xoay H44H theo ti\u00eau chu\u1ea9n ASME"},"content":{"rendered":"
\n

Product Overview<\/h2>\n

Van m\u1ed9t chi\u1ec1u xoay H44H theo ti\u00eau chu\u1ea9n ASME<\/strong> is designed to prevent reverse flow in industrial pipeline systems. WDL Valve supplies this valve in ASME Class 150, 300, 600 and 900 pressure ratings, with optional higher-pressure configurations according to project requirements.<\/p>\n

The valve is manufactured according to ASME B16.34 and related API inspection requirements. The disc adopts a swing-type structure with a straight-through flow passage, allowing installation in horizontal pipelines and suitable vertical pipeline arrangements. The internal rocker pin structure helps reduce potential external leakage points.<\/p>\n

For standard pressure classes, the body and cover are bolted. For high-pressure designs above Class 600, the middle flange can be supplied with a pressure self-sealing structure to reduce body weight and improve sealing reliability under pressure.<\/p>\n

C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a s\u1ea3n ph\u1ea9m<\/h2>\n
    \n
  • Swing disc design for automatic non-return service.<\/li>\n
  • \u0110\u01b0\u1eddng d\u1eabn d\u00f2ng ch\u1ea3y th\u1eb3ng gi\u00fap gi\u1ea3m t\u1ed5n th\u1ea5t \u00e1p su\u1ea5t.<\/li>\n
  • Suitable for horizontal installation and selected vertical pipeline service.<\/li>\n
  • Internal rocker pin structure helps reduce external leakage risk.<\/li>\n
  • Bolted cover structure for standard pressure classes.<\/li>\n
  • Pressure self-sealing cover design available for high-pressure service.<\/li>\n
  • Carbon steel, stainless steel, Monel and hard-faced sealing options are available.<\/li>\n<\/ul>\n

    Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/h2>\n
    \n\n\n\n\n\n\n\n\n\n\n\n
    Nh\u00e0 s\u1ea3n xu\u1ea5t<\/th>\nWDL Valve<\/td>\n<\/tr>\n
    Lo\u1ea1i s\u1ea3n ph\u1ea9m<\/th>\nASME swing check valve<\/td>\n<\/tr>\n
    Model<\/th>\nH44H-150LB \/ 300LB \/ 600LB \/ 900LB<\/td>\n<\/tr>\n
    K\u00edch th\u01b0\u1edbc danh ngh\u0129a<\/th>\nDN50-DN600, depending on pressure class<\/td>\n<\/tr>\n
    \u00c1p su\u1ea5t \u0111\u1ecbnh m\u1ee9c<\/th>\nASME Class 150, 300, 600, 900; higher classes upon request<\/td>\n<\/tr>\n
    K\u1ebft n\u1ed1i<\/th>\nRF flanged ends<\/td>\n<\/tr>\n
    Structure<\/th>\nSwing disc check valve, straight-through flow passage<\/td>\n<\/tr>\n
    Body Materials<\/th>\nASTM A216 WCB, ASTM A351 CF8, CF8M, CF3, CF3M and other materials upon request<\/td>\n<\/tr>\n
    Applicable Service<\/th>\nWater, steam, oil, gas and compatible industrial media, depending on selected material<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    C\u00e1c ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng<\/h2>\n
    \n\n\n\n\n\n
    Type<\/th>\nThi\u1ebft k\u1ebf v\u00e0 S\u1ea3n xu\u1ea5t<\/th>\nFace-to-Face<\/th>\nFlange Dimension<\/th>\nTh\u00f4ng s\u1ed1 \u00e1p su\u1ea5t - nhi\u1ec7t \u0111\u1ed9<\/th>\nInspection and Test<\/th>\n<\/tr>\n<\/thead>\n
    Swing check valve \/ lift check valve<\/td>\nASME B16.34 \/ BS 1868<\/td>\nASME B16.10<\/td>\nASME B16.5<\/td>\nASME B16.34<\/td>\nAPI 598<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    D\u1eef li\u1ec7u th\u1eed nghi\u1ec7m \u00e1p su\u1ea5t<\/h2>\n
    \n\n\n\n\n\n\n\n\n\n
    Nominal Pressure
    \nClass<\/th>\n    		Th\u1eed nghi\u1ec7m v\u1ecf<\/th>\nWater Seal Test<\/th>\nAir Seal Test<\/th>\n<\/tr>\n
    MPa<\/th>\nlbf\/in2<\/th>\nMPa<\/th>\nlbf\/in2<\/th>\nMPa<\/th>\nlbf\/in2<\/th>\n<\/tr>\n<\/thead>\n
    150<\/td>\n3.1<\/td>\n450<\/td>\n2.2<\/td>\n315<\/td>\n0.5-0.7<\/td>\n60-100<\/td>\n<\/tr>\n
    300<\/td>\n7.8<\/td>\n1125<\/td>\n5.6<\/td>\n815<\/td>\n0.5-0.7<\/td>\n60-100<\/td>\n<\/tr>\n
    600<\/td>\n15.3<\/td>\n2225<\/td>\n11.2<\/td>\n1630<\/td>\n0.5-0.7<\/td>\n60-100<\/td>\n<\/tr>\n
    900<\/td>\n23.1<\/td>\n3350<\/td>\n16.8<\/td>\n2440<\/td>\n0.5-0.7<\/td>\n60-100<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Main Materials<\/h2>\n
    \n\n\n\n\n\n\n\n\n\n\n
    Body \/ Cover<\/th>\nDisc and Bracket<\/th>\nPin Shaft<\/th>\nDisc Sealing Surface<\/th>\nSeat Sealing Surface<\/th>\n<\/tr>\n<\/thead>\n
    ASTM A216 WCB<\/td>\nWCB<\/td>\nF6a<\/td>\n13Cr \/ STL<\/td>\n13Cr \/ STL<\/td>\n<\/tr>\n
    ASTM A351 CF8<\/td>\nCF8<\/td>\nF304<\/td>\n304 \/ STL<\/td>\n304 \/ STL<\/td>\n<\/tr>\n
    ASTM A351 CF8M<\/td>\nCF8M<\/td>\nF316<\/td>\n316 \/ STL<\/td>\n316 \/ STL<\/td>\n<\/tr>\n
    Monel<\/td>\nMonel<\/td>\nMonel<\/td>\nMonel<\/td>\nMonel<\/td>\n<\/tr>\n
    ASTM A351 CF3<\/td>\nCF3<\/td>\nF304L<\/td>\n304L \/ STL<\/td>\n304L \/ STL<\/td>\n<\/tr>\n
    ASTM A351 CF3M<\/td>\nCF3M<\/td>\nF316L<\/td>\n316L \/ STL<\/td>\n316L \/ STL<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Class 150 Dimensions<\/h3>\n
    \n\n\n\n\n\n\n\n
    K\u00edch th\u01b0\u1edbc<\/th>\n2\u2033<\/th>\n2-1\/2\u2033<\/th>\n3\u2033<\/th>\n4\u2033<\/th>\n5\u2033<\/th>\n6\u2033<\/th>\n8\u2033<\/th>\n10\u2033<\/th>\n12\u2033<\/th>\n14\u2033<\/th>\n16\u2033<\/th>\n18\u2033<\/th>\n20\u2033<\/th>\n24\u2033<\/th>\n<\/tr>\n<\/thead>\n
    DN<\/th>\n50<\/td>\n65<\/td>\n80<\/td>\n100<\/td>\n125<\/td>\n150<\/td>\n200<\/td>\n250<\/td>\n300<\/td>\n350<\/td>\n400<\/td>\n450<\/td>\n500<\/td>\n600<\/td>\n<\/tr>\n
    L mm<\/th>\n203<\/td>\n216<\/td>\n241<\/td>\n292<\/td>\n330<\/td>\n356<\/td>\n495<\/td>\n622<\/td>\n699<\/td>\n787<\/td>\n914<\/td>\n978<\/td>\n978<\/td>\n1275<\/td>\n<\/tr>\n
    H mm<\/th>\n142<\/td>\n166<\/td>\n178<\/td>\n236<\/td>\n252<\/td>\n266<\/td>\n314<\/td>\n368<\/td>\n429<\/td>\n455<\/td>\n410<\/td>\n560<\/td>\n600<\/td>\n880<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Class 300 Dimensions<\/h3>\n
    \n\n\n\n\n\n\n\n
    K\u00edch th\u01b0\u1edbc<\/th>\n2\u2033<\/th>\n2-1\/2\u2033<\/th>\n3\u2033<\/th>\n4\u2033<\/th>\n5\u2033<\/th>\n6\u2033<\/th>\n8\u2033<\/th>\n10\u2033<\/th>\n12\u2033<\/th>\n14\u2033<\/th>\n16\u2033<\/th>\n18\u2033<\/th>\n20\u2033<\/th>\n24\u2033<\/th>\n<\/tr>\n<\/thead>\n
    DN<\/th>\n50<\/td>\n65<\/td>\n80<\/td>\n100<\/td>\n125<\/td>\n150<\/td>\n200<\/td>\n250<\/td>\n300<\/td>\n350<\/td>\n400<\/td>\n450<\/td>\n500<\/td>\n600<\/td>\n<\/tr>\n
    L mm<\/th>\n267<\/td>\n292<\/td>\n318<\/td>\n356<\/td>\n400<\/td>\n444<\/td>\n533<\/td>\n622<\/td>\n711<\/td>\n838<\/td>\n864<\/td>\n978<\/td>\n1016<\/td>\n1346<\/td>\n<\/tr>\n
    H mm<\/th>\n165<\/td>\n185<\/td>\n205<\/td>\n228<\/td>\n250<\/td>\n275<\/td>\n325<\/td>\n378<\/td>\n410<\/td>\n480<\/td>\n530<\/td>\n575<\/td>\n630<\/td>\n860<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Class 400 Dimensions<\/h3>\n
    \n\n\n\n\n\n\n\n
    K\u00edch th\u01b0\u1edbc<\/th>\n2\u2033<\/th>\n2-1\/2\u2033<\/th>\n3\u2033<\/th>\n4\u2033<\/th>\n5\u2033<\/th>\n6\u2033<\/th>\n8\u2033<\/th>\n10\u2033<\/th>\n12\u2033<\/th>\n14\u2033<\/th>\n16\u2033<\/th>\n18\u2033<\/th>\n20\u2033<\/th>\n<\/tr>\n<\/thead>\n
    DN<\/th>\n50<\/td>\n65<\/td>\n80<\/td>\n100<\/td>\n125<\/td>\n150<\/td>\n200<\/td>\n250<\/td>\n300<\/td>\n350<\/td>\n400<\/td>\n450<\/td>\n500<\/td>\n<\/tr>\n
    L mm<\/th>\n292<\/td>\n330<\/td>\n356<\/td>\n406<\/td>\n457<\/td>\n495<\/td>\n597<\/td>\n673<\/td>\n762<\/td>\n889<\/td>\n902<\/td>\n1016<\/td>\n1054<\/td>\n<\/tr>\n
    H mm<\/th>\n190<\/td>\n203<\/td>\n229<\/td>\n267<\/td>\n292<\/td>\n330<\/td>\n381<\/td>\n406<\/td>\n457<\/td>\n528<\/td>\n546<\/td>\n597<\/td>\n635<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Class 600 Dimensions<\/h3>\n
    \n\n\n\n\n\n\n\n
    K\u00edch th\u01b0\u1edbc<\/th>\n2\u2033<\/th>\n2-1\/2\u2033<\/th>\n3\u2033<\/th>\n4\u2033<\/th>\n5\u2033<\/th>\n6\u2033<\/th>\n8\u2033<\/th>\n10\u2033<\/th>\n12\u2033<\/th>\n14\u2033<\/th>\n16\u2033<\/th>\n18\u2033<\/th>\n20\u2033<\/th>\n24\u2033<\/th>\n<\/tr>\n<\/thead>\n
    DN<\/th>\n50<\/td>\n65<\/td>\n80<\/td>\n100<\/td>\n125<\/td>\n150<\/td>\n200<\/td>\n250<\/td>\n300<\/td>\n350<\/td>\n400<\/td>\n450<\/td>\n500<\/td>\n600<\/td>\n<\/tr>\n
    L mm<\/th>\n292<\/td>\n330<\/td>\n356<\/td>\n432<\/td>\n508<\/td>\n559<\/td>\n660<\/td>\n787<\/td>\n838<\/td>\n889<\/td>\n991<\/td>\n1092<\/td>\n1194<\/td>\n1397<\/td>\n<\/tr>\n
    H mm<\/th>\n203<\/td>\n229<\/td>\n235<\/td>\n286<\/td>\n292<\/td>\n330<\/td>\n381<\/td>\n457<\/td>\n584<\/td>\n835<\/td>\n684<\/td>\n752<\/td>\n975<\/td>\n1111<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Class 900 Dimensions<\/h3>\n
    \n\n\n\n\n\n\n\n
    K\u00edch th\u01b0\u1edbc<\/th>\n2\u2033<\/th>\n2-1\/2\u2033<\/th>\n3\u2033<\/th>\n4\u2033<\/th>\n5\u2033<\/th>\n6\u2033<\/th>\n8\u2033<\/th>\n10\u2033<\/th>\n12\u2033<\/th>\n14\u2033<\/th>\n16\u2033<\/th>\n<\/tr>\n<\/thead>\n
    DN<\/th>\n50<\/td>\n65<\/td>\n80<\/td>\n100<\/td>\n125<\/td>\n150<\/td>\n200<\/td>\n250<\/td>\n300<\/td>\n350<\/td>\n400<\/td>\n<\/tr>\n
    L mm<\/th>\n368<\/td>\n419<\/td>\n381<\/td>\n457<\/td>\n559<\/td>\n610<\/td>\n737<\/td>\n838<\/td>\n965<\/td>\n1029<\/td>\n1130<\/td>\n<\/tr>\n
    H mm<\/th>\n216<\/td>\n254<\/td>\n292<\/td>\n318<\/td>\n343<\/td>\n368<\/td>\n432<\/td>\n546<\/td>\n660<\/td>\n782<\/td>\n838<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Class 1500 Dimensions<\/h3>\n
    \n\n\n\n\n\n\n\n
    K\u00edch th\u01b0\u1edbc<\/th>\n2-1\/2\u2033<\/th>\n3\u2033<\/th>\n4\u2033<\/th>\n5\u2033<\/th>\n6\u2033<\/th>\n8\u2033<\/th>\n10\u2033<\/th>\n12\u2033<\/th>\n14\u2033<\/th>\n16\u2033<\/th>\n<\/tr>\n<\/thead>\n
    DN<\/th>\n65<\/td>\n80<\/td>\n100<\/td>\n125<\/td>\n150<\/td>\n200<\/td>\n250<\/td>\n300<\/td>\n350<\/td>\n400<\/td>\n<\/tr>\n
    L mm<\/th>\n419<\/td>\n470<\/td>\n546<\/td>\n673<\/td>\n705<\/td>\n832<\/td>\n991<\/td>\n1130<\/td>\n1257<\/td>\n1384<\/td>\n<\/tr>\n
    H mm<\/th>\n193<\/td>\n246<\/td>\n288<\/td>\n324<\/td>\n373<\/td>\n466<\/td>\n536<\/td>\n857<\/td>\n950<\/td>\n1020<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    C\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/h2>\n
      \n
    • Water, steam, oil and gas pipeline systems<\/li>\n
    • Petrochemical and chemical process units<\/li>\n
    • Power plant auxiliary pipeline systems<\/li>\n
    • High-pressure industrial pipelines<\/li>\n
    • Backflow prevention service in ASME piping systems<\/li>\n<\/ul>\n

      Th\u00f4ng tin \u0111\u1eb7t h\u00e0ng<\/h2>\n

      When requesting a quotation, please provide the valve size, pressure class, body material, sealing material, medium, working temperature, flange standard, installation direction and any special inspection requirements.<\/p>\n

      Dimensions, materials, sealing structure and pressure-temperature limits are subject to the final WDL Valve technical drawing and approved project datasheet.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

      Van m\u1ed9t chi\u1ec1u xoay H44H ASME \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ng\u0103n ch\u1eb7n t\u1ef1 \u0111\u1ed9ng hi\u1ec7n t\u01b0\u1ee3ng ch\u1ea3y ng\u01b0\u1ee3c trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng lo\u1ea1i Class 150, 300, 600 v\u00e0 900. V\u1edbi c\u1ea5u tr\u00fac \u0111\u0129a xoay, \u0111\u01b0\u1eddng d\u1eabn l\u01b0u ch\u1ea5t th\u1eb3ng v\u00e0 v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn l\u00e0 th\u00e9p carbon ho\u1eb7c th\u00e9p kh\u00f4ng g\u1ec9, van n\u00e0y ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng v\u1edbi n\u01b0\u1edbc, h\u01a1i n\u01b0\u1edbc, d\u1ea7u, kh\u00ed v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p.<\/p>","protected":false},"featured_media":870,"comment_status":"open","ping_status":"closed","template":"","meta":{"_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":[72],"product_cat":[37,32,31,40,41],"product_tag":[],"class_list":["post-436","product","type-product","status-publish","has-post-thumbnail","product_brand-wdl-valve","product_cat-check-valves","product_cat-valve-materials","product_cat-valve-types","product_cat-carbon-steel-valves","product_cat-stainless-steel-valves","first","instock","shipping-taxable","product-type-simple","entry","content-bg","loop-entry"],"_links":{"self":[{"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/product\/436","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/comments?post=436"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/media\/870"}],"wp:attachment":[{"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/media?parent=436"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/product_brand?post=436"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/product_cat?post=436"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/product_tag?post=436"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}