{"id":4479,"date":"2025-08-16T10:54:26","date_gmt":"2025-08-16T03:54:26","guid":{"rendered":"https:\/\/onggiosaoviet.vn\/?post_type=product&p=4479"},"modified":"2026-05-11T07:52:13","modified_gmt":"2026-05-11T00:52:13","slug":"con-thu-ong-gio-tron","status":"publish","type":"product","link":"https:\/\/onggiosaoviet.vn\/en\/product\/con-thu-ong-gio-tron\/","title":{"rendered":"Round duct reducer"},"content":{"rendered":"
    \n
  1. Uses<\/strong><\/li>\n<\/ol>\n
      \n
    • Used for round duct diameter converter<\/strong> from large to small (or vice versa) in ventilation, air conditioning, and fire protection systems.<\/li>\n
    • Help adjust air flow and wind speed<\/strong> suitable for each pipe section.<\/li>\n
    • Connection between duct sections or equipment (fans, air valves, hoods, etc.) of different sizes.<\/li>\n<\/ul>\n
        \n
      1. Material<\/strong><\/li>\n<\/ol>\n
          \n
        • Galvanized steel Z080<\/strong> (Hoa Sen \/ Hoa Phat) - galvanized standard for corrosion protection.<\/li>\n
        • Material thickness: 0.58mm \u2013 1.15mm<\/strong> depending on diameter and pressure requirements.<\/li>\n
        • Can be machined by Stainless steel 304\/201<\/strong> for humid environments or high hygiene requirements (clean rooms, food).<\/li>\n<\/ul>\n
            \n
          1. Specifications \u2013 Dimensions<\/strong><\/li>\n<\/ol>\n
              \n
            • Large diameter (D1):<\/strong> \u00d8150 \u2013 \u00d81250 mm.<\/li>\n
            • Small diameter (D2):<\/strong> According to design requirements, smaller than D1.<\/li>\n
            • Cone length (L):<\/strong> Depending on the design, ensure smooth transition, limit wind pressure loss.<\/li>\n
            • Taper angle:<\/strong> Calculated to minimize airflow turbulence, typically 15\u00b0\u201330\u00b0.<\/li>\n<\/ul>\n
                \n
              1. Processing method<\/strong><\/li>\n<\/ol>\n
                  \n
                • Rolling, rounding and welding technology<\/strong> or seam sealing to ensure airtightness.<\/li>\n
                • Connector<\/strong>: can do head hug<\/strong> or pullover<\/strong> to suit the installation type.<\/li>\n
                • The joints are treated to prevent air leakage (with specialized glue or airtight tape).<\/li>\n<\/ul>\n
                    \n
                  1. Application<\/strong><\/li>\n<\/ol>\n
                      \n
                    • System HVAC<\/strong> (cold air supply, fresh air, exhaust air).<\/li>\n
                    • System smoke extraction \u2013 fire protection<\/strong>.<\/li>\n
                    • Commercial area, office building, industrial factory.<\/li>\n<\/ul>\n
                        \n
                      1. Advantage<\/strong><\/li>\n<\/ol>\n
                          \n
                        • Smooth resize<\/strong>, reduce wind pressure loss.<\/li>\n
                        • Easy to install<\/strong>, compatible with a wide range of accessories and devices.<\/li>\n
                        • High durability<\/strong> Thanks to galvanized\/stainless steel material.<\/li>\n
                        • Custom processing<\/strong> to suit every project.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

                          C\u00f4ng d\u1ee5ng D\u00f9ng \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i \u0111\u01b0\u1eddng k\u00ednh \u1ed1ng gi\u00f3 tr\u00f2n t\u1eeb l\u1edbn sang nh\u1ecf (ho\u1eb7c ng\u01b0\u1ee3c l\u1ea1i) trong h\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3, \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed, h\u00fat kh\u00f3i PCCC. Gi\u00fap \u0111i\u1ec1u ch\u1ec9nh l\u01b0u l\u01b0\u1ee3ng gi\u00f3 v\u00e0 t\u1ed1c \u0111\u1ed9 gi\u00f3 ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng \u0111o\u1ea1n \u1ed1ng. K\u1ebft n\u1ed1i gi\u1eefa c\u00e1c \u0111o\u1ea1n \u1ed1ng gi\u00f3 ho\u1eb7c thi\u1ebft […]<\/p>","protected":false},"featured_media":4750,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[18,22],"product_tag":[],"class_list":{"0":"post-4479","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-all","7":"product_cat-con-ong","9":"first","10":"instock","11":"taxable","12":"shipping-taxable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/product\/4479","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=4479"}],"version-history":[{"count":1,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/product\/4479\/revisions"}],"predecessor-version":[{"id":4489,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/product\/4479\/revisions\/4489"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/media\/4750"}],"wp:attachment":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/media?parent=4479"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/product_brand?post=4479"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/product_cat?post=4479"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/product_tag?post=4479"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}