{"id":3906,"date":"2025-07-28T14:23:57","date_gmt":"2025-07-28T07:23:57","guid":{"rendered":"https:\/\/onggiosaoviet.vn\/?p=3906"},"modified":"2025-08-29T12:51:09","modified_gmt":"2025-08-29T05:51:09","slug":"ong-gio-chong-chay-ei45-dam-bao-an-toan-tuyet-doi-trong-he-thong-hvac","status":"publish","type":"post","link":"https:\/\/onggiosaoviet.vn\/en\/ong-gio-chong-chay-ei45-dam-bao-an-toan-tuyet-doi-trong-he-thong-hvac\/","title":{"rendered":"EI45 fireproof duct"},"content":{"rendered":"
EI45 FIREPROOF AIR DUCT \u2013 ENSURING ABSOLUTE SAFETY IN HVAC SYSTEM<\/strong><\/div>\n
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In the context of increasingly strict requirements on fire prevention and fighting (PCCC), especially in large-scale civil and industrial works such as commercial centers, hospitals, apartments, factories, ventilation systems play an important role in controlling smoke and hot gas when an incident occurs. In particular, EI45 fire-resistant duct is a mandatory and optimal solution to help maintain the ability to operate the HVAC system in emergency conditions, ensuring absolute safety for people and property.<\/div>\n
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In this article, let's learn with SAO VIET AIR DUCT in detail about the structure, features, benefits and practical applications of EI45 fireproof air duct in modern mechanical and electrical systems of construction works.<\/div>\n
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1. What is EI45 Fireproof Duct?<\/strong><\/div>\n
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EI45 fireproof air duct is a type of air duct specially designed to be fireproof and heat resistant for 45 minutes according to EI45 standard - that is, meeting 3 factors:<\/div>\n
\u00a0\u2022 E (Integrity) \u2013 integrity<\/div>\n
\u00a0\u2022 I (Insulation) \u2013 insulation capacity<\/div>\n
\u00a0\u2022 45 (Minutes) \u2013 minimum fire resistance time 45 minutes<\/div>\n
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This means that in the event of a fire, the duct will not be deformed, will not transmit fire, and will not transmit heat to the outside for 45 minutes - enough time to evacuate people, prevent the fire from spreading, and carry out rescue work.<\/div>\n
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2. Technical Standards and Fire Safety Certification for EI45 Air Duct<\/strong><\/div>\n
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To be recognized as EI45 fire-resistant ductwork, the product must undergo rigorous testing at a designated testing center. In Vietnam, the standards are usually based on:<\/div>\n
\u00a0\u2022 QCVN 06:2022\/BXD \u2013 National technical regulation on fire safety for houses and buildings<\/div>\n
\u00a0\u2022 TCVN 9344-1:2012 \u2013 Design standards for ventilation and air conditioning systems<\/div>\n
\u00a0\u2022 European standard EN 1366-1:2014 \u2013 Fire resistance test for ventilation systems<\/div>\n
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EI45 air duct is required to have a fire prevention and fighting inspection certificate from the Fire Prevention and Fighting Police Department or a licensed unit.<\/div>\n
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3. Structure of EI45 Fireproof Duct<\/strong><\/div>\n
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3.1. Inner core layer<\/div>\n
\u00a0\u2022 Usually made from galvanized iron (GI) or stainless steel with a thickness of 0.8 - 1.2mm.<\/div>\n
\u00a0\u2022 Sealed welding ensures no gas or smoke leakage under high temperature conditions.<\/div>\n
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3.2. Fireproof material layer<\/div>\n
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\u2022 Stick or wrap the outer core layer with Rockwool mineral wool, Ceramic wool, or specialized fireproof materials (Promat, calcium silicate...).<\/div>\n
\u00a0\u2022 Common thickness is from 25 - 50mm, depending on the technical requirements of the project.<\/div>\n
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3.3. Outermost protective layer<\/div>\n
\u00a0\u2022 Is a cover made of smooth corrugated iron or galvanized steel mesh that helps fix fireproof and scratch-resistant materials and increase aesthetics.<\/div>\n
\u00a0\u2022 Can be painted fireproof gray or black to distinguish it from normal air ducts.<\/div>\n
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4. Advantages of EI45 Fireproof Duct<\/strong><\/div>\n
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\u2705 Absolute Safety Guaranteed<\/div>\n
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Heat resistance and fire prevention help protect ventilation systems, minimizing damage in the event of a fire or explosion.<\/div>\n
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\u2705 Maintain System Operation During Emergency<\/div>\n
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Allows the smoke extraction and fresh air supply system to continue operating for 45 minutes in the event of a fire \u2013 which is extremely important to protect human lives.<\/div>\n
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\u2705 Comply with Fire Prevention and Fighting Standards<\/div>\n
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It is a mandatory requirement in fire safety acceptance projects, especially in grade I, special grade, and public works.<\/div>\n
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\u2705 High Durability \u2013 Long Lifespan<\/div>\n
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Withstand harsh environmental conditions, high humidity, chemical environments (if using stainless steel material).<\/div>\n
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\u2705 Flexible Installation - Easy Construction<\/div>\n
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Can be bent, branched, combined with fireproof accessories such as air valves, elbows, tees, EI air vents.<\/div>\n
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5. Applications of EI45 Ducts in HVAC Systems<\/strong><\/div>\n
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Basement smoke exhaust system<\/div>\n
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High-rise buildings are required to have a smoke extraction system in the basement. EI45 pipes help to direct smoke from lower floors to the outside, preventing smoke from spreading to the escape area.<\/div>\n
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Corridor smoke exhaust system<\/div>\n
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Keep corridors clear during a fire, keeping escape routes safe for residents and rescuers.<\/div>\n
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Fresh air supply system for stairwells<\/div>\n
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Helps create positive pressure in the fire escape shaft to prevent smoke from entering \u2013 a mandatory requirement in buildings with 2 or more basements.<\/div>\n
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Central air conditioning system<\/div>\n
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In large shopping malls and hotels, EI45 ductwork helps the HVAC system to operate safely and efficiently in the event of a fire.<\/div>\n
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6. Comparison of EI45 Fireproof Duct and Normal Duct<\/strong><\/div>\n
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Criteria for conventional air ducts EI45 air ducts<\/div>\n
Fire resistance None Fire resistance \u2265 45 minutes<\/div>\n
Fire safety Not met Acceptance standards<\/div>\n
Materials: Plain corrugated iron + fireproof layer<\/div>\n
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Applications: Normal air conditioning and ventilation, smoke exhaust and fire protection air supply systems<\/div>\n
Lower Cost Higher (commensurate with quality)<\/div>\n
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7. Construction Process of Fireproof Duct EI45<\/strong><\/div>\n
\u00a01. System survey and design: Based on technical drawings and fire protection requirements to calculate air flow and pipe size.<\/div>\n
\u00a02. Production of core duct: Processed with galvanized or stainless steel sheet, welded tightly, cut and assembled according to specifications.<\/div>\n
\u00a03. Fireproof wrapping: Stick or wrap EI45 standard fireproof material around the pipe.<\/div>\n
\u00a04. Reinforced outer shell: Covered with smooth corrugated iron or steel mesh, fireproof paint.<\/div>\n
\u00a05. Installation at the construction site: According to the design, hang the bracket, seal the joints with fireproof glue or silicone.<\/div>\n
\u00a06. System inspection: Inspected by the Fire Prevention and Fighting Unit and issued with a certificate of acceptance.<\/div>\n
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8. Sao Viet Air Duct - Prestigious EI45 Fireproof Air Duct Construction Unit in Hai Phong<\/strong>g<\/div>\n
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With many years of experience in manufacturing and installing duct systems, SAO VIET AIR DUCT MANUFACTURING AND TRADING COMPANY LIMITED is proud to be a pioneer in providing EI45 fireproof ducts that meet quality standards, serving hundreds of large and small projects in Hai Phong and the Northern region.<\/div>\n
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Reasons to choose Sao Viet Air Duct:<\/div>\n
\u00a0\u2022 \u2705 Product is certified for fire protection EI45<\/div>\n
\u00a0\u2022 \u2705 Precise processing, high aesthetics<\/div>\n
\u00a0\u2022 \u2705 Team of skilled engineers and workers<\/div>\n
\u00a0\u2022 \u2705 Free technical solution consultation<\/div>\n
\u00a0\u2022 \u2705 Fast construction - on schedule<\/div>\n
\u00a0\u2022 \u2705 Long-term warranty - Dedicated after-sales service<\/div>\n
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Address: 267 Le Thanh Tong, May Chai, Ngo Quyen, Hai Phong<\/div>\n
Hotline: Mrs. Hang 0985 239 838 | Mrs. Giang 0934 559 168 | Customer Service 0822 555 659<\/div>\n
Website: www.dieuhoasaoviet.vn<\/div>\n
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9. Conclusion<\/strong><\/div>\n
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EI45 fire-resistant duct is an indispensable component in modern HVAC systems, especially in projects with high fire safety requirements. With the ability to resist fire for 45 minutes, the product not only ensures compliance with fire prevention regulations but also contributes to protecting human life and property.<\/div>\n
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If you are looking for a high quality fireproof duct solution, please contact SAO VIET AIR DUCT immediately for consultation, design and detailed quotation - we are committed to accompanying your project from the drawing stage to actual completion.<\/div>\n
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#ongDanKhiCongNghiep #ongGioSaoViet #ThiCongOngDanKhi #HeThongOngKhi #ongKhiNen #ongDanKhiHaiPhong #AnToanCongNghiep #HeThongKhiNen #GiaiPhapCongNghiep<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

\u1ed0NG GI\u00d3 CH\u1ed0NG CH\u00c1Y EI45 \u2013 \u0110\u1ea2M B\u1ea2O AN TO\u00c0N TUY\u1ec6T \u0110\u1ed0I TRONG H\u1ec6 TH\u1ed0NG HVAC Trong b\u1ed1i c\u1ea3nh y\u00eau c\u1ea7u v\u1ec1 an to\u00e0n ph\u00f2ng ch\u00e1y ch\u1eefa ch\u00e1y (PCCC) ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c si\u1ebft ch\u1eb7t, \u0111\u1eb7c bi\u1ec7t t\u1ea1i c\u00e1c c\u00f4ng tr\u00ecnh d\u00e2n d\u1ee5ng v\u00e0 c\u00f4ng nghi\u1ec7p quy m\u00f4 l\u1edbn nh\u01b0 trung t\u00e2m th\u01b0\u01a1ng m\u1ea1i, b\u1ec7nh vi\u1ec7n, […]<\/p>","protected":false},"author":1,"featured_media":3907,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3906","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\/3906","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/comments?post=3906"}],"version-history":[{"count":3,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/3906\/revisions"}],"predecessor-version":[{"id":5030,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/3906\/revisions\/5030"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/media\/3907"}],"wp:attachment":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/media?parent=3906"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/categories?post=3906"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/tags?post=3906"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}