{"id":6159,"date":"2026-09-05T02:51:02","date_gmt":"2026-09-04T19:51:02","guid":{"rendered":"https:\/\/onggiosaoviet.vn\/?p=6159"},"modified":"2026-09-23T02:59:24","modified_gmt":"2026-09-22T19:59:24","slug":"ket-noi-ong-gio-tdf-tdc-hay-kep-c-chon-phuong-an-nao-cho-cong-trinh","status":"publish","type":"post","link":"https:\/\/onggiosaoviet.vn\/en\/ket-noi-ong-gio-tdf-tdc-hay-kep-c-chon-phuong-an-nao-cho-cong-trinh\/","title":{"rendered":"Connecting TDF\/TDC ducts or C-clamps: which option is best for the project?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">When ordering ductwork fabrication in Hai Phong, contractors usually need to finalize the connection type right from the drawings. Two popular options recommended by Sao Viet Ducting are the TDF\/TDC flange system and the C-clamp connection. There is no single connection type suitable for every project; the decision must be based on duct size, design pressure, installation space, disassembly requirements, and approved technical standards.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/onggiosaoviet.vn\/wp-content\/uploads\/2026\/03\/Anh-1-Bai-11-600x450.png\" alt=\"Chi ti\u1ebft k\u1ebft n\u1ed1i \u1ed1ng gi\u00f3 trong h\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3 t\u1ea1i H\u1ea3i Ph\u00f2ng\"\/><figcaption class=\"wp-element-caption\">Detailed illustration of air ducts from the Sao Viet Air Duct Library.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">The difference between TDF\/TDC and C-clamps.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">TDF\/TDC is a type of connection that uses pre-fabricated flanges at the pipe edges, combined with fittings and sealing materials as designed. C-clamps are commonly used to join two compatible flange edges. Both directions require ensuring a straight joint, sufficient tightening points, and a continuous seal; the specific choice must be based on the project documentation, not solely on installation speed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What should contractors check before finalizing the deal?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cross-sectional dimensions, section length, and working pressure.<\/li>\n\n\n\n<li>Material, thickness, flange type, and accompanying accessories.<\/li>\n\n\n\n<li>Workspace, mounting locations, and maintainability.<\/li>\n\n\n\n<li>Require airtightness, vibration resistance, fire resistance, or hygiene if specified in the documentation.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Do not change the connection type without the approval of the design engineer or authorized person. For projects in Hai Phong, please send the latest drawings and estimated quantities to help the fabrication unit compare specifications before submitting a proposal.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Frequently Asked Questions<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Can TDF\/TDC replace C-clamps in all routes?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">No. The possibility of replacement depends on the design, size, pressure, and acceptance criteria of the project.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What do I need to send to receive advice?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Please send the shop drawings, bill of quantities, materials, sealing requirements, and delivery schedule.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Contact Sao Viet Air Ducting in Hai Phong<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Address: 267 Le Thanh Tong Street, May Chai Ward, Hai Phong City. Hotline: <a href=\"tel:0815999826\">0815 999 826<\/a> (Ms. Hang) <a href=\"tel:0934559168\">0934 559 168<\/a> (Ms. Giang) \u00b7 Technical <a href=\"tel:0949852886\">0949 852 886<\/a> \u00b7 <a href=\"tel:0822555659\">0822 555 659<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/onggiosaoviet.vn\/en\/contact\/\">Submit a request for consultation.<\/a> \u00b7 <a href=\"https:\/\/onggiosaoviet.vn\/en\/cua-hang\/\">View products<\/a> \u00b7 <a href=\"https:\/\/maps.google.com\/?q=267+Le+Thanh+Tong+Hai+Phong\">View location on map<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Learn about the advantages and disadvantages of TDF\/TDC flange connections and C-clamps, and the parameters to compare before ordering duct fabrication in Hai Phong.<\/p>","protected":false},"author":4,"featured_media":5705,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6159","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/6159","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/comments?post=6159"}],"version-history":[{"count":1,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/6159\/revisions"}],"predecessor-version":[{"id":6160,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/6159\/revisions\/6160"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/media\/5705"}],"wp:attachment":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/media?parent=6159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/categories?post=6159"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/tags?post=6159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}