{"id":11476,"date":"2024-06-16T07:06:19","date_gmt":"2024-06-16T07:06:19","guid":{"rendered":"https:\/\/topat10.com\/?p=11476"},"modified":"2024-06-16T07:06:19","modified_gmt":"2024-06-16T07:06:19","slug":"what-types-of-dampers-are-used-in-hvac-systems","status":"publish","type":"post","link":"https:\/\/topat10.com\/?p=11476","title":{"rendered":"What Types of Dampers Are Used In HVAC Systems?"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div>\n<p>Dampers control the direction and volume of air flow within a duct to maintain a balanced HVAC system. Most HVAC systems will use dampers in one form or another to control air flow. They are typically located within duct systems and operate as a door that allows, redirects, diffuses, or stops airflow either manually or automatically.<\/p>\n<p>Homeowners should be aware of the various types of dampers to provide energy efficiency for your home. Understanding your dampers can also help with the fire protection of your home. Keep reading to learn more about the common damper types used for HVAC applications, and how they help your system operate.<\/p>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<div class=\"gb-container gb-container-9d767c19\">\n<div class=\"gb-container gb-container-f9fb55de\">\n<h2 class=\"wp-block-heading\" id=\"h-what-types-of-dampers-are-commonly-used-in-hvac-systems\">Common Types of HVAC Dampers<br \/><\/h2>\n<p>Most residential and light commercial HVAC systems will incorporate some combination of different types of dampers to achieve a balanced system. These include radial, rectangular, round-tube, collar tube, shutter, or blade-style dampers. Industrial applications may require custom-designed dampers, but they generally perform the same function.\u00a0<\/p>\n<p>While all dampers stop, limit, or redirect airflow, each design offers specific benefits, like better sealing, one-way operation, and precise airflow control. Most dampers are made from galvanized steel, but other materials, like aluminum and stainless steel, are also used depending on the application.<\/p>\n<\/div>\n<div class=\"gb-container gb-container-9947dcc6 gb-accordion\" data-accordion-multiple-open=\"\">\n<div class=\"gb-container gb-container-4cba4a8c gb-accordion__item\" data-transition=\"slide\">\n<p><button class=\"gb-button gb-button-942bebe6 gb-accordion__toggle\"><span class=\"gb-button-text\"><strong>Blade-Style Dampers<\/strong><\/span><span class=\"gb-icon\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" width=\"1em\" height=\"1em\" ariahidden=\"true\" role=\"img\" class=\"gb-accordion__icon\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\" fill=\"currentColor\"\/><\/svg><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" width=\"1em\" height=\"1em\" ariahidden=\"true\" role=\"img\" class=\"gb-accordion__icon-open\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\" fill=\"currentColor\"\/><\/svg><\/span><\/button><\/p>\n<div class=\"gb-accordion__content\">\n<div class=\"gb-container gb-container-d8440d21\">\n<p>Blade-style dampers, also known as collar-type, use either a single rotating blade, or several long blades that work together to control airflow. Most blade-style dampers are round, square, or rectangular and are usually located near a junction in the system to isolate a zone or area.\u00a0<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"gb-container gb-container-2b938add gb-accordion__item\" data-transition=\"slide\">\n<p><button class=\"gb-button gb-button-cc444b66 gb-accordion__toggle\"><span class=\"gb-button-text\"><strong>Guillotine Style Dampers<\/strong><\/span><span class=\"gb-icon\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" width=\"1em\" height=\"1em\" ariahidden=\"true\" role=\"img\" class=\"gb-accordion__icon\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\" fill=\"currentColor\"\/><\/svg><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" width=\"1em\" height=\"1em\" ariahidden=\"true\" role=\"img\" class=\"gb-accordion__icon-open\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\" fill=\"currentColor\"\/><\/svg><\/span><\/button><\/p>\n<div class=\"gb-accordion__content\">\n<div class=\"gb-container gb-container-89c4618b\">\n<p>Guillotine-style dampers are often used when the system requires the best seal. They usually have a gasket that glides against the blades as it closes (like a guillotine) and creates an airtight seal. Guillotine dampers close very quickly and are useful in emergencies, like quickly preventing the spread of fire by denying it air.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"gb-container gb-container-aaadcd28 gb-accordion__item\" data-transition=\"slide\">\n<p><button class=\"gb-button gb-button-896d4af5 gb-accordion__toggle\"><span class=\"gb-button-text\"><strong>Shutter Style Dampers<\/strong><\/span><span class=\"gb-icon\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" width=\"1em\" height=\"1em\" ariahidden=\"true\" role=\"img\" class=\"gb-accordion__icon\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\" fill=\"currentColor\"\/><\/svg><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" width=\"1em\" height=\"1em\" ariahidden=\"true\" role=\"img\" class=\"gb-accordion__icon-open\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\" fill=\"currentColor\"\/><\/svg><\/span><\/button><\/p>\n<div class=\"gb-accordion__content\">\n<div class=\"gb-container gb-container-4927c9c7\">\n<p>Shutter-style dampers allow for automatic airflow in only one direction. These dampers prevent reverse flow to move back through the unit. Backdraft dampers are a shutter-style damper commonly found on fans to prevent back pressure.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"gb-container gb-container-12464d21 gb-accordion__item\" data-transition=\"slide\">\n<p><button class=\"gb-button gb-button-a94414d0 gb-accordion__toggle\"><span class=\"gb-button-text\"><strong>Radial Style Dampers<\/strong><\/span><span class=\"gb-icon\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" width=\"1em\" height=\"1em\" ariahidden=\"true\" role=\"img\" class=\"gb-accordion__icon\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\" fill=\"currentColor\"\/><\/svg><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" width=\"1em\" height=\"1em\" ariahidden=\"true\" role=\"img\" class=\"gb-accordion__icon-open\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\" fill=\"currentColor\"\/><\/svg><\/span><\/button><\/p>\n<div class=\"gb-accordion__content\">\n<div class=\"gb-container gb-container-3363561c\">\n<p>Radial style dampers use more than one rotating blade to provide very precise air flow control. Radial-style dampers open like a fanned-out deck of playing cards, allowing the designer to precisely diffuse and control airflow. Radial-style dampers have openings and notches in specific locations on the blades to maximize efficiency and effectiveness.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"gb-container gb-container-98f8a348 gb-accordion__item\" data-transition=\"slide\">\n<p><button class=\"gb-button gb-button-ec9c6b2e gb-accordion__toggle\"><span class=\"gb-button-text\"><strong>Rectangular Style Dampers<\/strong><\/span><span class=\"gb-icon\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" width=\"1em\" height=\"1em\" ariahidden=\"true\" role=\"img\" class=\"gb-accordion__icon\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\" fill=\"currentColor\"\/><\/svg><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" width=\"1em\" height=\"1em\" ariahidden=\"true\" role=\"img\" class=\"gb-accordion__icon-open\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\" fill=\"currentColor\"\/><\/svg><\/span><\/button><\/p>\n<div class=\"gb-accordion__content\">\n<div class=\"gb-container gb-container-7d64a360\">\n<p>Rectangular-style dampers usually use flat blades that pivot around a center hub, much like balancing dampers. In an HVAC system, you may find a rectangular damper in the form of a floor or wall register. Often, a slider is used to open or close the damper\u2019s blade to control airflow into a room.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"gb-container gb-container-9a9e4aee gb-accordion__item\" data-transition=\"slide\">\n<p><button class=\"gb-button gb-button-49177de9 gb-accordion__toggle\"><span class=\"gb-button-text\"><strong>Round Tube Style Dampers<br \/><\/strong><\/span><span class=\"gb-icon\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" width=\"1em\" height=\"1em\" ariahidden=\"true\" role=\"img\" class=\"gb-accordion__icon\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\" fill=\"currentColor\"\/><\/svg><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" width=\"1em\" height=\"1em\" ariahidden=\"true\" role=\"img\" class=\"gb-accordion__icon-open\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\" fill=\"currentColor\"\/><\/svg><\/span><\/button><\/p>\n<div class=\"gb-accordion__content\">\n<div class=\"gb-container gb-container-5098f4ba\">\n<p>Round tube dampers are usually longer than normal collar-style dampers and are often a self-contained unit. Round tube-style dampers will generally replace a short section of flexible ductwork with a short rigid section (less than 24\u201d) and contain the damper and controls. Round tube-style dampers are commonly inserted as needed after the system is operational.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<h2 class=\"wp-block-heading\" id=\"h-how-are-dampers-operated\">Manual vs. Automatic Operation<\/h2>\n<p>Dampers can be operated either manually or automatically, depending on the application and use of the system. For example, most residential systems will use manually operated blade-style dampers. Usually, contractors adjust and set the blades during initial installation, although it can be changed in the future.\u00a0<\/p>\n<p>Other HVAC systems require greater control and may include plenum spaces that require airflow restrictions. Often, these dampers are automatically adjusted based on temperature and volume presets and are controlled by the system and a thermostat. Radial-style dampers are common in this configuration due to their greater control capabilities.<\/p>\n<div class=\"gb-container gb-container-cbb1d64a\">\n<div class=\"gb-container gb-container-b6a19f5b gb-tabs\" data-opened-tab=\"1\">\n<p><button class=\"gb-button gb-button-adabc3a7 gb-button-text gb-tabs__button gb-block-is-current\"><strong>Manually Operated<\/strong><\/button><\/p>\n<p><button class=\"gb-button gb-button-c2e411d6 gb-button-text gb-tabs__button\"><strong>Automatically Operated<\/strong><\/button><\/p>\n<div class=\"gb-container gb-container-2e4faabe gb-tabs__items\">\n<div class=\"gb-container gb-container-d249a59c gb-tabs__item gb-tabs__item-open\">\n<p>Most HVAC dampers will be the blade type, located inside a collar within the ductwork. The blade, which is slightly smaller than the diameter of the duct, spins like a revolving door. The locking adjustment handle extends outside the duct, allowing the installer to restrict or allow airflow as needed. In most systems, if the handle is parallel to the duct, the damper is fully open.<\/p>\n<p>Some dampers may need to be adjusted periodically, but not constantly. Often, these dampers are manually controlled via a cable system. Mechanical actuators that open and close the damper are controlled with these cable systems, which are very reliable and rarely need maintenance.\u00a0<\/p>\n<p>Sometimes design requirements place ductwork in less than ideal locations, meaning adjusting dampers requires moving or uninstalling other components. In these cases, mechanical actuators are extremely useful because they save the time and effort required to simply access a switch. These mechanical actuators are very reliable and rarely need maintenance.<\/p>\n<\/div>\n<div class=\"gb-container gb-container-212c2d09 gb-tabs__item\">\n<p>Some dampers are controlled automatically by electrical switches and actuators. Automatic dampers are used in complex HVAC designs requiring multiple controls to create a balanced system. Automatic dampers are also common in locations that are difficult to manually access, like in a very low attic space.<\/p>\n<p>As an answer to manual dampers that need periodic adjustment, some newer HVAC damper designs incorporate wireless technology. Each damper is fitted with a wireless receiver and transmitter and is controlled remotely. Wireless dampers can be retrofitted to replace manual dampers that are a hassle to access.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<h2 class=\"wp-block-heading\" id=\"h-what-are-dampers-used-for-in-an-hvac-system\">Uses of Dampers In HVAC Systems<\/h2>\n<div class=\"gb-container gb-container-f6fab20d\">\n<div class=\"gb-container gb-container-25593166 gb-tabs\" data-opened-tab=\"1\">\n<p><button class=\"gb-button gb-button-2d075a92 gb-button-text gb-tabs__button gb-block-is-current\"><strong>Control Dampers<\/strong><\/button><\/p>\n<p><button class=\"gb-button gb-button-8f9f5242 gb-button-text gb-tabs__button\"><strong>Balancing Dampers<\/strong><\/button><\/p>\n<div class=\"gb-container gb-container-0b10922e gb-tabs__items\">\n<div class=\"gb-container gb-container-e811f17d gb-tabs__item gb-tabs__item-open\">\n<p>Control dampers are used to stop, allow, or mix airflow by adjusting the rotating blades within the damper. These are often controlled by a thermostat or remote. In most configurations, a control damper is designed to open and close automatically to control air volume and pressure.<\/p>\n<\/div>\n<div class=\"gb-container gb-container-a36a4834 gb-tabs__item\">\n<div class=\"gb-grid-wrapper gb-grid-wrapper-0e3be181\">\n<div class=\"gb-grid-column gb-grid-column-b682b290\">\n<div class=\"gb-container gb-container-b682b290\">\n<p>Balancing dampers, like control dampers, open and close multiple blades to restrict airflow. These are usually used between two adjoining spaces where one is receiving more air pressure than the other.<\/p>\n<p>Balancing dampers are typically set by the installer and permanently locked into position, but can be readjusted.<\/p>\n<\/div>\n<\/div>\n<div class=\"gb-grid-column gb-grid-column-05cfbec5\">\n<div class=\"gb-container gb-container-05cfbec5\">\n<figure class=\"gb-block-image gb-block-image-e357d6a9\"><img decoding=\"async\" class=\"gb-image gb-image-e357d6a9 lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" http:=\"\" data-lazy-src=\"https:\/\/d7fcfvvxwoz9e.cloudfront.net\/dom43635\/wp-content\/uploads\/2022\/05\/volume-control-damper-500x500-1.jpg\"\/><noscript><img decoding=\"async\" class=\"gb-image gb-image-e357d6a9 lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/d7fcfvvxwoz9e.cloudfront.net\/dom43635\/wp-content\/uploads\/2022\/05\/volume-control-damper-500x500-1.jpg\"\/><\/noscript><figcaption class=\"gb-headline gb-headline-3ec7f449 gb-headline-text\">Source: indiamart.com<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2 class=\"wp-block-heading\" id=\"h-what-is-the-difference-between-a-balancing-damper-and-a-control-damper\">Balancing vs. Control Damper<\/h2>\n<p>Control dampers and balancing dampers are easily confused for each other because both look similar and perform a similar function. Knowing the difference is important, because they are not necessarily interchangeable. <\/p>\n<h3 class=\"wp-block-heading\" id=\"h-balancing-dampers-have-parallel-blades\">Balancing Dampers Have Parallel Blades<\/h3>\n<p>Balancing dampers are designed to impede airflow on one side of the damper and increase it on the other. These typically have three or four parallel blades that all move in the same direction at the same time. Most balancing damper blades rotate around a center pin and can be rotated almost 180 degrees in either direction.<\/p>\n<h3 class=\"wp-block-heading\" id=\"h-control-dampers-have-opposed-blades\">Control Dampers Have Opposed Blades<\/h3>\n<p>Control dampers are opposed blade dampers. Each blade rotates in the opposite direction of the blade next to it, which applies pressure against the seal from both directions. In contrast to balancing dampers, control dampers will either be fully open or fully closed.<\/p>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<h2 class=\"wp-block-heading\">Other Types of Dampers <\/h2>\n<div class=\"gb-container gb-container-11572724\">\n<div class=\"gb-container gb-container-11d6c2fd gb-tabs\" data-opened-tab=\"1\">\n<p><button class=\"gb-button gb-button-af0a3609 gb-button-text gb-tabs__button gb-block-is-current\"><strong>Backdraft Dampers<\/strong><\/button><\/p>\n<p><button class=\"gb-button gb-button-62760109 gb-button-text gb-tabs__button\"><strong>Industrial Dampers<\/strong><\/button><\/p>\n<p><button class=\"gb-button gb-button-f8c63ec7 gb-button-text gb-tabs__button\"><strong>Multi-Zone Dampers<\/strong><\/button><\/p>\n<div class=\"gb-container gb-container-584dbf19 gb-tabs__items\">\n<div class=\"gb-container gb-container-9e9cec4c gb-tabs__item gb-tabs__item-open\">\n<p>Backdraft dampers are common in a residential home, even beyond your HVAC system. These dampers allow air travel in one direction only, so they are used in bathroom vent fans, range hoods, and dryer vents as well. Backdraft dampers allow exhaust air to exit the home while outside air pressure prevents reverse air flow.\u00a0<\/p>\n<\/div>\n<div class=\"gb-container gb-container-734403ae gb-tabs__item\">\n<h4 class=\"wp-block-heading\" id=\"h-butterfly-damper\">Butterfly Damper<\/h4>\n<div class=\"gb-grid-wrapper gb-grid-wrapper-0ff53712\">\n<div class=\"gb-grid-column gb-grid-column-24d9962b\">\n<div class=\"gb-container gb-container-24d9962b\">\n<p>Industrial HVAC systems sometimes require elaborate airflow control because the structures are so large. For example, heated air traveling long distances through ductwork may cool off before it reaches its destination.<\/p>\n<p>Butterfly dampers are commonly used in industrial applications to provide more control over air leakage and flow to solve this problem. They use a flat, circular metal blade and work best in round ducts. <\/p>\n<\/div>\n<\/div>\n<div class=\"gb-grid-column gb-grid-column-9047586e\">\n<div class=\"gb-container gb-container-9047586e\">\n<figure class=\"gb-block-image gb-block-image-8c5a5493\"><img decoding=\"async\" class=\"gb-image gb-image-8c5a5493 lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" http:=\"\" data-lazy-src=\"https:\/\/d7fcfvvxwoz9e.cloudfront.net\/dom43635\/wp-content\/uploads\/2022\/05\/img2574301.jpg\"\/><noscript><img decoding=\"async\" class=\"gb-image gb-image-8c5a5493 lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/d7fcfvvxwoz9e.cloudfront.net\/dom43635\/wp-content\/uploads\/2022\/05\/img2574301.jpg\"\/><\/noscript><figcaption class=\"gb-headline gb-headline-3b60a7cf gb-headline-text\">Source: tore.acpro.com<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h4 class=\"wp-block-heading\" id=\"h-inlet-vane-damper\">Inlet Vane Damper<\/h4>\n<p>Inlet vane dampers are commonly used in industrial applications, usually near the air intake. In most applications, inlet vane dampers are used to precisely control airflow and air pressure from the inlet side of the blower fan. Inlet vane dampers are unique in that the angle of attack from the blades is adjustable.<\/p>\n<p>Just like the blades on a helicopter, the blades on an inlet vane damper can be pivoted in place to allow more or less airflow. Inlet vane dampers are usually round and are available in both residential and industrial versions.<\/p>\n<\/div>\n<div class=\"gb-container gb-container-1136e577 gb-tabs__item\">\n<p>Multi-zone dampers are electrically controlled dampers that can be either programmed in a particular state, or they can be adjusted as needed by the system. Many <a href=\"https:\/\/todayshomeowner.com\/hvac\/guides\/hvac-zoning-vs-two-systems\/\">HVAC systems are divided into control zones<\/a>, which usually means the rooms that have dedicated ductwork. Each room will have its own ductwork, which means it can be considered a zone.<\/p>\n<p>Similar to a security system, each HVAC zone will be controllable and programmable, providing more consistent air flow and pressure. Multi-zone HVAC dampers can be used in conjunction with other dampers, like backdraft and control dampers to establish the most efficient airflow path. Multi-zone dampers are often controlled continuously by the system and the thermostat.\u00a0<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"gb-container gb-container-582f500d\">\n<p>Article Update Log<\/p>\n<div class=\"gb-grid-wrapper gb-grid-wrapper-4ccf9a66\">\n<div class=\"gb-grid-column gb-grid-column-a62d97de\">\n<div class=\"gb-container gb-container-a62d97de\">\n<div class=\"gb-headline gb-headline-1a89dba4 gb-headline-text provider-box\">Reviewed for accuracy, cost data, industry best practices, and expert advice by <a href=\"https:\/\/todayshomeowner.com\/author\/katelynn-ward\/\">Katelynn Ward.<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Dampers control the direction and volume of air flow within a duct to maintain a balanced HVAC system. Most HVAC systems will use dampers in one form or another to control air flow. They are typically located within duct systems and operate as a door that allows, redirects, diffuses, or stops airflow either manually or [&hellip;]<\/p>\n","protected":false},"author":423,"featured_media":11477,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[124],"tags":[],"class_list":["post-11476","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-home-improvement"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What Types of Dampers Are Used In HVAC Systems? | Unlock Informed Choices with Us<\/title>\n<meta name=\"description\" content=\"Dampers control the direction and volume of air flow within a duct to maintain a balanced HVAC system. 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