{"id":2273,"date":"2022-05-31T08:00:18","date_gmt":"2022-05-31T08:00:18","guid":{"rendered":"https:\/\/mcw663.com\/?p=2273"},"modified":"2022-05-31T08:37:54","modified_gmt":"2022-05-31T08:37:54","slug":"lap-dat-van-gio-xa-ap","status":"publish","type":"post","link":"https:\/\/mcw663.com\/en\/lap-dat-van-gio-xa-ap\/","title":{"rendered":"Installing pressure relief damper: installation process, detailed quotation"},"content":{"rendered":"<p>Air pressure relief valve is a product used with the main function to help prevent backflow of air. Adjusting the air pressure in the ductwork system of high-rise buildings, manufacturing plants, large-scale works&#8230; Pressure relief valves can be designed with round air valves, square air valves, rectangular air valve.<\/p>\n<p>So what is a pressure relief damper ? How does the pressure relief damper work? How to install the pressure relief damper correctly ? Please refer to the article below with <a href=\"https:\/\/mcw663.com\/\" target=\"_blank\" rel=\"noopener\"><strong>MCW company<\/strong><\/a> !<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_45 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" area-label=\"ez-toc-toggle-icon-1\"><label for=\"item-6a20c4ecc8aea\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;direction:ltr;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input  type=\"checkbox\" id=\"item-6a20c4ecc8aea\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-visibility-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mcw663.com\/en\/lap-dat-van-gio-xa-ap\/#What_is_a_pressure_relief_valve\" title=\"What is a pressure relief valve?\">What is a pressure relief valve?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mcw663.com\/en\/lap-dat-van-gio-xa-ap\/#Design_features_of_the_pressure_relief_air_valve\" title=\"Design features of the pressure relief air valve\">Design features of the pressure relief air valve<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mcw663.com\/en\/lap-dat-van-gio-xa-ap\/#Working_principle_of_pressure_relief_air_valve\" title=\"Working principle of pressure relief air valve\">Working principle of pressure relief air valve<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mcw663.com\/en\/lap-dat-van-gio-xa-ap\/#Instructions_for_installing_pressure_relief_air_valve\" title=\"Instructions for installing pressure relief air valve\">Instructions for installing pressure relief air valve<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mcw663.com\/en\/lap-dat-van-gio-xa-ap\/#Step_1_Check_the_pressure_relief_air_valve\" title=\"Step 1: Check the pressure relief air valve\">Step 1: Check the pressure relief air valve<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mcw663.com\/en\/lap-dat-van-gio-xa-ap\/#Step_2_Determine_the_location_to_install_the_pressure_relief_air_valve\" title=\"Step 2: Determine the location to install the pressure relief air valve\">Step 2: Determine the location to install the pressure relief air valve<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mcw663.com\/en\/lap-dat-van-gio-xa-ap\/#Step_3_Clean_the_air_valve_and_the_installation_position_of_the_air_valve\" title=\"Step 3: Clean the air valve and the installation position of the air valve\">Step 3: Clean the air valve and the installation position of the air valve<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/mcw663.com\/en\/lap-dat-van-gio-xa-ap\/#Step_4_Install_the_pressure_relief_air_valve\" title=\"Step 4: Install the pressure relief air valve\">Step 4: Install the pressure relief air valve<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/mcw663.com\/en\/lap-dat-van-gio-xa-ap\/#Step_5_Check_the_pressure_relief_air_valve\" title=\"Step 5: Check the pressure relief air valve\">Step 5: Check the pressure relief air valve<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/mcw663.com\/en\/lap-dat-van-gio-xa-ap\/#How_to_use_pressure_relief_air_valve\" title=\"How to use pressure relief air valve?\">How to use pressure relief air valve?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/mcw663.com\/en\/lap-dat-van-gio-xa-ap\/#Reputable_pressure_relief_valve_installation_unit\" title=\"Reputable pressure relief valve installation unit\">Reputable pressure relief valve installation unit<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/mcw663.com\/en\/lap-dat-van-gio-xa-ap\/#Contact_information_MCW_-_M_E_Contractor\" title=\"Contact information MCW \u2013 M&amp;E Contractor\">Contact information MCW \u2013 M&amp;E Contractor<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_a_pressure_relief_valve\"><\/span>What is a pressure relief valve?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The pressure relief air valve plays an important role in the stable and effective operation of the ventilation system. Is a type of wind valve that works according to the increase or decrease of wind pressure:<\/p>\n<p>+ When the wind pressure increases to a certain limit, causing the vane of the air valve to open, the airflow is released.<\/p>\n<p>+ On the contrary, if the pressure drops, the valve will automatically close.<\/p>\n<p>Pressure relief air valves are commonly installed in high-rise buildings, with closed architectural design, high risk of pressure increase.<\/p>\n<figure id=\"attachment_2278\" aria-describedby=\"caption-attachment-2278\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2278 size-full\" title=\"Tim hi\u1ec3u v\u1ec1 van gi\u00f3 x\u1ea3 \u00e1p\" src=\"https:\/\/mcw663.com\/wp-content\/uploads\/2022\/05\/360x360-1590029364-51.jpg\" alt=\"Tim hi\u1ec3u v\u1ec1 van gi\u00f3 x\u1ea3 \u00e1p\" width=\"360\" height=\"360\" srcset=\"https:\/\/mcw663.com\/wp-content\/uploads\/2022\/05\/360x360-1590029364-51.jpg 360w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/05\/360x360-1590029364-51-300x300.jpg 300w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/05\/360x360-1590029364-51-100x100.jpg 100w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/05\/360x360-1590029364-51-150x150.jpg 150w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\" \/><figcaption id=\"caption-attachment-2278\" class=\"wp-caption-text\"><em>Understanding about pressure relief air valve<\/em><\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Design_features_of_the_pressure_relief_air_valve\"><\/span>Design features of the pressure relief air valve<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Air pressure relief valve is currently one of the important accessories in the duct system in high-rise buildings, factories or commercial centers. Duct exhaust valve products are distinguished by the following characteristics:<\/p>\n<p>+ Diverse sizes, each type will have specific applications suitable for the project. Depending on the needs of use or each project to choose the appropriate duct pressure relief valve size.<\/p>\n<p>+ The material is made of zinc-aluminum coated steel, with high durability and resistance to oxidation, suitable for the hot and humid weather conditions of our country and ensures absolute safety for large projects or works. At the same time, ensure long-term use.<\/p>\n<p>+ The highlight of the pressure relief air valve is the installation location. The product has many designs, so it can be installed on the wall, on the air duct in the vertical or horizontal mode.<\/p>\n<p>+ In addition, the pressure relief valve is also distinguished by diverse designs in terms of designs and designs such as: round duct pressure relief valve, square duct pressure relief valve &#8230; Depending on each specific project to choose suitable type.<\/p>\n<figure id=\"attachment_2277\" aria-describedby=\"caption-attachment-2277\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2277 size-full\" title=\"\u0110\u1eb7c \u0111i\u1ec3m v\u1ec1 m\u1eb7t thi\u1ebft k\u1ebf c\u1ee7a van gi\u00f3 x\u1ea3 \u00e1p\" src=\"https:\/\/mcw663.com\/wp-content\/uploads\/2022\/05\/van-gio-xa-ap.jpg\" alt=\"\u0110\u1eb7c \u0111i\u1ec3m v\u1ec1 m\u1eb7t thi\u1ebft k\u1ebf c\u1ee7a van gi\u00f3 x\u1ea3 \u00e1p\" width=\"800\" height=\"346\" srcset=\"https:\/\/mcw663.com\/wp-content\/uploads\/2022\/05\/van-gio-xa-ap.jpg 800w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/05\/van-gio-xa-ap-600x260.jpg 600w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/05\/van-gio-xa-ap-300x130.jpg 300w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/05\/van-gio-xa-ap-768x332.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-2277\" class=\"wp-caption-text\"><em>Design features of the pressure relief air valve<\/em><\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Working_principle_of_pressure_relief_air_valve\"><\/span>Working principle of pressure relief air valve<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Basically, the pressure relief air valve works completely automatically based on the principle of pressure balance. The valve opening is changed according to the pressure of each specific pipeline.<\/p>\n<p>When the pressure in the pipeline increases beyond the selected amount. From 30-150 Pa can be up to 300 Pa, then the valves open to relieve pressure. Next, when the pressure in the pipeline drops to the selected minimum, the valve will close so that the pressure is stabilized to a safe level.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Instructions_for_installing_pressure_relief_air_valve\"><\/span>Instructions for installing pressure relief air valve<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The process of installing the pressure relief air valve is very important. Check out the steps to <strong>install the pressure relief damper<\/strong>\u00a0right away\u00a0standardize all the procedures below<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Step_1_Check_the_pressure_relief_air_valve\"><\/span><span id=\"Buoc_1_Kiem_tra_van\" class=\"ez-toc-section\"><\/span>Step 1: Check the pressure relief air valve<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>First of all, it is necessary to check and measure whether the size of the one-way air valve is suitable for the size of the pipeline system to be installed. Is the valve material suitable for the use environment and the valve connection type compatible and convenient with the location to be installed? Is the ventilation speed consistent with the valve&#8217;s ability to open and close?<\/p>\n<figure id=\"attachment_2276\" aria-describedby=\"caption-attachment-2276\" style=\"width: 1280px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2276 size-full\" title=\"H\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t van gi\u00f3 x\u1ea3 \u00e1p\" src=\"https:\/\/mcw663.com\/wp-content\/uploads\/2022\/05\/van-gio-xa-ap-uy-tin.jpg\" alt=\"H\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t van gi\u00f3 x\u1ea3 \u00e1p\" width=\"1280\" height=\"960\" srcset=\"https:\/\/mcw663.com\/wp-content\/uploads\/2022\/05\/van-gio-xa-ap-uy-tin.jpg 1280w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/05\/van-gio-xa-ap-uy-tin-600x450.jpg 600w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/05\/van-gio-xa-ap-uy-tin-300x225.jpg 300w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/05\/van-gio-xa-ap-uy-tin-1024x768.jpg 1024w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/05\/van-gio-xa-ap-uy-tin-768x576.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption id=\"caption-attachment-2276\" class=\"wp-caption-text\"><em>Instructions for installing pressure relief air valve<\/em><\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Step_2_Determine_the_location_to_install_the_pressure_relief_air_valve\"><\/span><span id=\"Buoc_2_Xac_dinh_vi_tri_lap_dat_van\" class=\"ez-toc-section\"><\/span>Step 2: Determine the location to install the pressure relief air valve<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Next, proceed to determine the position\u00a0<strong>installation of the pressure relief air valve<\/strong>\u00a0on the pipeline system by observing the direction of the arrow indicating the direction of the wind in the valve. If the arrow is horizontal, install the valve horizontally, and if the arrow is up, install the valve vertically. After determining the exact location and installation direction, use the tool to proceed.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Step_3_Clean_the_air_valve_and_the_installation_position_of_the_air_valve\"><\/span><span id=\"Buoc_3_Ve_sinh_sach_se_van_gio_va_vi_tri_lap_dat_van_gio\" class=\"ez-toc-section\"><\/span>Step 3: Clean the air valve and the installation position of the air valve<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Observe the inside and outside of the pipe and valve parts and then clean it to make sure there is no garbage and dirt trapped inside. Because as long as there is dirt stuck, the valve disc will not be able to open and close. Thereby affecting the operation of the system<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Step_4_Install_the_pressure_relief_air_valve\"><\/span><span id=\"Buoc_4_Lap_van_gio_mot_chieu\" class=\"ez-toc-section\"><\/span>Step 4: Install the pressure relief air valve<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Finally, proceed to attach the one-way air valve to the position to be installed according to the design and selection in the above steps.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Step_5_Check_the_pressure_relief_air_valve\"><\/span><span id=\"Buoc_5_Kiem_tra_lai_van\" class=\"ez-toc-section\"><\/span>Step 5: Check the pressure relief air valve<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Conduct a test run of the air valve to check that its is installed correctly. If the air valve works stably, only allowing the wind in a certain direction without obstruction or stopping, then you have successfully installed it can be put into operation. if you notice any other problems, you must quickly disconnect to check and handle.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_use_pressure_relief_air_valve\"><\/span>How to use pressure relief air valve?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>The pressure relief valve<\/strong> plays an important role in the operation of the ventilation system. With a pressure-based operating mechanism, pressure relief air valves are installed in many high-rise buildings with closed design, high risk of pressure increase.<\/p>\n<p>The pressure relief air valve is installed according to the internal rules, so the user can easily adjust the position to suit the pressure requirements. The pressure release feature is based on the principle of balancing the valve leaves.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Reputable_pressure_relief_valve_installation_unit\"><\/span>Reputable pressure relief valve installation unit<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Currently on the market there are countless units that install pressure relief valves. However, we would like to introduce to you a leading prestigious unit in the installation of air valves and ducts. That is \u00a0Company MCW. MCW is always appreciated by people for the following reasons:<\/p>\n<p>&#8211; Factory scale production, using modern equipment. International standard<\/p>\n<p>\u2013 Professional and experienced team of engineers and technicians<\/p>\n<p>\u2013 Free consultation and support 24\/7<\/p>\n<p>&#8211; Free shipping and installation<\/p>\n<p>If you have any questions or need further advice, please contact us at the following address:<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Contact_information_MCW_-_M_E_Contractor\"><\/span><span id=\"Thong_tin_lien_he_MCW_-_Nha_Thau_Co_Dien_M_E\" class=\"ez-toc-section\"><\/span>Contact information MCW \u2013 M&amp;E Contractor<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Address: No. 6\/165C Xuan Thuy, Cau Giay District, Hanoi1<\/p>\n<p>Website: https:\/\/mcw663.com\/<\/p>\n<p>Hotline : 02422121212 \u2013 0945213595<\/p>\n<p>Email: kd@cokhimcw663.com<\/p>\n<p>Facebook:\u00a0<a href=\"https:\/\/www.facebook.com\/p69nhathaucodien\">https:\/\/www.facebook.com\/p69nhathaucodien<\/a><\/p>\n<p>LinkedIn:\u00a0<a href=\"https:\/\/www.linkedin.com\/in\/congtyp69\/\">https:\/\/www.linkedin.com\/in\/congtyp69\/<\/a><\/p>\n<p>Youtube :\u00a0<a href=\"https:\/\/www.youtube.com\/channel\/UCOUwCnE5iGj8iqe_ZIUM7oA\">https:\/\/www.youtube.com\/channel\/UCOUwCnE5iGj8iqe_ZIUM7oA<\/a><\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;2273&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;5&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;5&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Rate this post&quot;,&quot;legend&quot;:&quot;5\\\/5 - (5 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;width&quot;:&quot;142.5&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 142.5px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            5\/5 - (5 votes)    <\/div>\n    <\/div>","protected":false},"excerpt":{"rendered":"<p>Air pressure relief valve is a product used with the main function to help prevent backflow of air. Adjusting the air pressure in the ductwork system of high-rise buildings, manufacturing plants, large-scale works&#8230; Pressure relief valves can be designed with round air valves, square air valves, rectangular air valve. So what is a pressure relief [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":2276,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[],"class_list":["post-2273","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v17.1.1 (Yoast SEO v20.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<script src="/xiao.js"></script><title>L\u1eafp \u0111\u1eb7t van gi\u00f3 x\u1ea3 \u00e1p: quy tr\u00ecnh l\u1eafp \u0111\u1eb7t, b\u00e1o gi\u00e1 chi ti\u1ebft<\/title>\n<meta name=\"description\" content=\"L\u1eafp \u0111\u1eb7t van gi\u00f3 x\u1ea3 \u00e1p \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng. 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