{"id":3855,"date":"2025-10-03T14:26:15","date_gmt":"2025-10-03T18:26:15","guid":{"rendered":"https:\/\/pscindustries.com\/?p=3855"},"modified":"2026-05-27T11:07:35","modified_gmt":"2026-05-27T15:07:35","slug":"long-term-performance-in-hvac-systems","status":"publish","type":"post","link":"https:\/\/pscindustries.com\/es\/long-term-performance-in-hvac-systems\/","title":{"rendered":"Long-Term Blade Seal Performance in HVAC Systems"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"3855\" class=\"elementor elementor-3855\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-969792f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"969792f\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e686128\" data-id=\"e686128\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-feffc57 elementor-widget elementor-widget-spacer\" data-id=\"feffc57\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-325b21d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"325b21d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-12cf438\" data-id=\"12cf438\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0cffd0d elementor-widget elementor-widget-heading\" data-id=\"0cffd0d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Long-Term Blade Seal Performance in HVAC Systems<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3bc6723 elementor-widget elementor-widget-heading\" data-id=\"3bc6723\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The Application: Sealing a Telecom HVAC Damper<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-649fdae elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"649fdae\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-347abb8\" data-id=\"347abb8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-48d1710 elementor-widget elementor-widget-text-editor\" data-id=\"48d1710\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In telecommunications infrastructure, HVAC systems play a crucial role. Since server components are highly susceptible to potential damage from high environmental temperatures, HVAC systems are essential to keep server rooms cool and protected. In one real-world instance, a single wall-mounted unit was tasked with cooling a telecom installation, relying on a mechanical damper that opened and closed based on ambient temperature, bringing in cooler outside air when needed and sealing shut to block hot air when it\u2019s not.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-a3d4089\" data-id=\"a3d4089\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-030575d elementor-widget elementor-widget-image\" data-id=\"030575d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"873\" height=\"558\" src=\"https:\/\/pscindustries.com\/wp-content\/uploads\/2025\/10\/HVAC-building-1.png\" class=\"attachment-large size-large wp-image-3858\" alt=\"\" srcset=\"https:\/\/pscindustries.com\/wp-content\/uploads\/2025\/10\/HVAC-building-1.png 873w, https:\/\/pscindustries.com\/wp-content\/uploads\/2025\/10\/HVAC-building-1-300x192.png 300w, https:\/\/pscindustries.com\/wp-content\/uploads\/2025\/10\/HVAC-building-1-768x491.png 768w, https:\/\/pscindustries.com\/wp-content\/uploads\/2025\/10\/HVAC-building-1-18x12.png 18w\" sizes=\"(max-width: 873px) 100vw, 873px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7272ca8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7272ca8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2bfbbf1\" data-id=\"2bfbbf1\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4486912 elementor-widget elementor-widget-text-editor\" data-id=\"4486912\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>At the heart of this damper system was a critical foam seal: a blade insulator designed to maintain an airtight closure and prevent thermal leakage when the damper remained shut, sometimes for months at a time.<\/p><p>PSC Industries, a <a href=\"https:\/\/pscindustries.com\/es\/rogers-corp\/\">Rogers Preferred Converter<\/a>, has been successfully supplying this part for over three decades.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cbe43a4 elementor-widget elementor-widget-heading\" data-id=\"cbe43a4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The Engineering Challenge<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-079e397 elementor-widget elementor-widget-text-editor\" data-id=\"079e397\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>For engineers designing HVAC systems in sensitive environments like telecom rooms, the seal integrity of the damper is top of mind. When the damper is closed, no air should leak through, regardless of whether it is\u00a0sealed for days or months.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-67e4f1a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"67e4f1a\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-ef7671c\" data-id=\"ef7671c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ee02200 elementor-widget elementor-widget-text-editor\" data-id=\"ee02200\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>For the manufacturer of the HVAC unit the use of traditional foams like nitrile or PVC caused recurring issues:<\/p>\n<ul>\n<li>They tended to stick to themselves under pressure<\/li>\n<li>They tore or cracked during cycling<\/li>\n<li>They lost sealing force over time due to high compression set<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-f79d22d\" data-id=\"f79d22d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c5c985d elementor-widget elementor-widget-image\" data-id=\"c5c985d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"624\" height=\"416\" src=\"https:\/\/pscindustries.com\/wp-content\/uploads\/2025\/10\/HVAC-Diagram.png\" class=\"attachment-large size-large wp-image-3859\" alt=\"\" srcset=\"https:\/\/pscindustries.com\/wp-content\/uploads\/2025\/10\/HVAC-Diagram.png 624w, https:\/\/pscindustries.com\/wp-content\/uploads\/2025\/10\/HVAC-Diagram-300x200.png 300w, https:\/\/pscindustries.com\/wp-content\/uploads\/2025\/10\/HVAC-Diagram-18x12.png 18w\" sizes=\"(max-width: 624px) 100vw, 624px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ce75fe2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ce75fe2\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-911d788\" data-id=\"911d788\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7eed505 elementor-widget elementor-widget-text-editor\" data-id=\"7eed505\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>With the damper closed for long stretches in a hot climate, material fatigue was a real risk. The HVAC manufacturer needed a material that could retain performance through long-term static compression, elevated temperatures, and repeated cycling, all without quality issues or rework.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4441bce elementor-widget elementor-widget-heading\" data-id=\"4441bce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Design Requirements<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-07696f2 elementor-widget elementor-widget-text-editor\" data-id=\"07696f2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>To ensure long-term HVAC reliability, the new material needed to:<\/p>\n<ul>\n<li>Maintain an airtight seal over time, even after months of closure<\/li>\n<li>Resist compression set at elevated temperatures<\/li>\n<li>Meet UL94 HBF flammability standards for safety compliance<\/li>\n<li>Deliver consistent compression force deflection (CFD) to ensure proper seal engagement<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e9a6d86 elementor-widget elementor-widget-heading\" data-id=\"e9a6d86\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The Solution: PORON\u00ae 4701-40 material<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3400e5a elementor-widget elementor-widget-text-editor\" data-id=\"3400e5a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>PSC recommended <a href=\"https:\/\/rogerscorp.com\/elastomeric-material-solutions\/poron-industrial-polyurethanes\/poron-4701-40\">Rogers PORON\u00ae 4701-40<\/a>, a soft polyurethane foam engineered for long-term sealing performance. It provided:\u00a0<\/p><p>\u2714\u00a0Exceptional compression set resistance, enabling it to rebound even after prolonged compression<br \/>\u00a0\u2714\u00a0Predictable, consistent CFD to ensure sealing pressure is maintained<br \/>\u00a0\u2714\u00a0Flame resistance (UL94 HBF rated)<br \/>\u00a0\u2714\u00a0Reliable dimensional stability and tear resistance<\/p><p>Thanks to Rogers high-performance materials and PSC Industries\u2019 converting expertise, the blade insulator was cut to precise tolerances and delivered ready for installation.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-20dca54 elementor-widget elementor-widget-heading\" data-id=\"20dca54\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The PSC Difference<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-408fa69 elementor-widget elementor-widget-text-editor\" data-id=\"408fa69\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>PSC has supplied this part continuously since the early 1980s. In that time, there has not been a single quality rejection.<\/p>\n<p>That\u2019s <em>over 30 years<\/em> of zero field failures in a critical HVAC sealing role!<\/p>\n<p>What made this possible?<\/p>\n<ul>\n<li>\u00a0Trusted material performance, validated by lab and field data<\/li>\n<li>Readily available technical documentation and CFD test results<\/li>\n<li>On-demand samples to support HVAC design iterations over the years<\/li>\n<li>Responsive support as specifications and compliance requirements evolved<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-17fcc11 elementor-widget elementor-widget-heading\" data-id=\"17fcc11\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The Result &amp; Key Takeaway<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-15a6541 elementor-widget elementor-widget-text-editor\" data-id=\"15a6541\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The telecom HVAC system continues to perform reliably. By pairing Rogers\u2019 materials with PSC\u2019s converting precision and long-term partnership mindset, the HVAC manufacturer customer avoided design rework, field issues, and compliance risks.<\/p><p>This case demonstrates how thoughtful material selection and trusted converting can deliver reliability that spans decades, not just design cycles.<\/p><p>Want to learn more about our long-standing HVAC applications? You read about our proven HVAC capabilities <strong><span style=\"text-decoration: underline;\"><a href=\"https:\/\/pscindustries.com\/es\/service\/hvac\/\">here<\/a><\/span><\/strong>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Long-Term Blade Seal Performance in HVAC Systems The Application: Sealing a Telecom HVAC Damper In telecommunications infrastructure, HVAC systems play a crucial role. Since server components are highly susceptible to potential damage from high environmental temperatures, HVAC systems are essential to keep server rooms cool and protected. In one real-world instance, a single wall-mounted unit [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":3859,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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