{"id":4482,"date":"2025-08-16T11:10:47","date_gmt":"2025-08-16T04:10:47","guid":{"rendered":"https:\/\/onggiosaoviet.vn\/?post_type=product&p=4482"},"modified":"2026-08-25T19:58:59","modified_gmt":"2026-08-25T12:58:59","slug":"ong-gio-vuong-chu-nhat","status":"publish","type":"product","link":"https:\/\/onggiosaoviet.vn\/en\/product\/ong-gio-vuong-chu-nhat\/","title":{"rendered":"Square \/ rectangular duct"},"content":{"rendered":"
    \n
  1. Uses<\/strong><\/li>\n<\/ol>\n
      \n
    • Air conduction and distribution in the system HVAC<\/strong>: cold air supply, fresh air, return air, exhaust air.<\/li>\n
    • Application in the system ventilation \u2013 air conditioning \u2013 smoke extraction fire protection<\/strong> for high-rise buildings, commercial centers, industrial factories.<\/li>\n
    • Priority is given to use when installation space is limited in height, or pipes need to be arranged close to the ceiling or along the wall.<\/li>\n<\/ul>\n
        \n
      1. Material<\/strong><\/li>\n<\/ol>\n
          \n
        • Galvanized steel Z080<\/strong> (Hoa Sen \/ Hoa Phat) \u2013 anti-corrosion, high durability.<\/li>\n
        • Standard thickness (according to pipe size and wind pressure):\n
            \n
          • 0.48 mm \u2013 0.58 mm for small size, low pressure.<\/li>\n
          • 0.75 mm \u2013 0.95 mm for medium size, medium pressure.<\/li>\n
          • 1.15mm for large size, high pressure.<\/li>\n<\/ul>\n<\/li>\n
          • Options: Stainless steel 304\/201<\/strong> or powder coated steel for special environments.<\/li>\n<\/ul>\n
              \n
            1. Specifications \u2013 Dimensions<\/strong><\/li>\n<\/ol>\n
                \n
              • Cross-sectional size: W \u00d7 H<\/strong> according to design drawings.<\/li>\n
              • Standard length of each section: 1100mm for 1200mm sheet metal (optimal transportation and installation).<\/li>\n
              • Shape: square or rectangular, can have rounded corners as required.<\/li>\n<\/ul>\n
                  \n
                1. Structure & Machining<\/strong><\/li>\n<\/ol>\n
                    \n
                  • Pittsburgh seaming, lamination or gas-sealing to SMACNA\/DW144.<\/li>\n
                  • Two end pipe attachment TDC\/TDF flange<\/strong> or Slip & Drive<\/strong> for easy assembly at site.<\/li>\n
                  • Reinforced stiffeners along the pipe wall to prevent vibration and distortion.<\/li>\n
                  • The joints are sealed with airtight glue or fitted with EPDM rubber gaskets.<\/li>\n<\/ul>\n
                      \n
                    1. Application<\/strong><\/li>\n<\/ol>\n
                        \n
                      • High-rise building<\/strong>: shopping center, office, apartment.<\/li>\n
                      • Industrial factory<\/strong>: garment factory, processing factory, warehouse.<\/li>\n
                      • Special project<\/strong>: hospital, school, gymnasium.<\/li>\n<\/ul>\n
                          \n
                        1. Advantage<\/strong><\/li>\n<\/ol>\n
                            \n
                          • Large air flow<\/strong> for the same cross section as a circular tube in low space.<\/li>\n
                          • Tight, secure<\/strong>, anti-air leakage, reduce pressure loss.<\/li>\n
                          • Flexible installation<\/strong> with many types of flanges and matching accessories.<\/li>\n
                          • Custom processing<\/strong> Dimensions, materials, fire resistance standards (EI30\/60\/120).<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

                            Uses: Air conduction and distribution in HVAC systems: chilled air, fresh air, return air, and exhaust air. Applications include ventilation, air conditioning, and fire protection smoke extraction systems for high-rise buildings, shopping malls, and industrial factories. Preferred use when [...]<\/p>","protected":false},"featured_media":4755,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[18,23],"product_tag":[],"class_list":["post-4482","product","type-product","status-publish","has-post-thumbnail","product_cat-all","product_cat-ong-gio-vuong","first","instock","taxable","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/product\/4482","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/comments?post=4482"}],"version-history":[{"count":2,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/product\/4482\/revisions"}],"predecessor-version":[{"id":4862,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/product\/4482\/revisions\/4862"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/media\/4755"}],"wp:attachment":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/media?parent=4482"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/product_brand?post=4482"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/product_cat?post=4482"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/product_tag?post=4482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}