{"id":13172,"date":"2025-07-15T07:00:53","date_gmt":"2025-07-15T05:00:53","guid":{"rendered":"https:\/\/www.lidering.com\/dry-seals\/"},"modified":"2025-07-15T08:09:20","modified_gmt":"2025-07-15T06:09:20","slug":"dry-seals","status":"publish","type":"post","link":"https:\/\/www.lidering.com\/en\/dry-seals\/","title":{"rendered":"Dry Seals: seals for solids in industrial applications"},"content":{"rendered":"<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">00In many industries, it is necessary to work with powdered products and the use of secondary fluids to lubricate and\/or cool the seals is not allowed. Therefore, a different solution to the conventional ones is needed.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Conventional sealing systems tend to fail quickly due to rapid wear and tear, making Dry Seals an efficient and durable alternative to traditional solutions.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">In this article we explain what Dry Seals are in the industry, how they work, in which sectors are they particularly useful and why they can become a key solution to improve the reliability, maintenance and performance of your plant.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>\u00a0Sealing of solid products (powder)<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Sectors such as construction (cement, plaster, pigments), food (sugar, olive oil, animal feed) or pharmaceuticals (ascorbic acid powder) often require special sealing solutions.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">And while braided packing has traditionally been the most common choice for this type of application, Dry Seals offer better medium to long term wear performance, better shaft protection, less maintenance and therefore reduced wear costs.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Lidering, as a <a href=\"https:\/\/www.lidering.com\/en\/subsection\/dry-seals-en\/\" target=\"_blank\" rel=\"noopener\">specialist manufacturer of mechanical seals,<\/a> offers an alternative in cases where sealing systems would require complex auxiliary systems or special abrasion resistant materials: Dry Seals.<\/span><\/p>\n<h2><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-19877\" src=\"https:\/\/www.lidering.com\/wp-content\/uploads\/2025\/07\/Sellos-en-seco-Dry-Seals-LID_2025-07_ENG_NL_interior2.webp\" alt=\"MTZ dry seal system for leak-free, frictionless sealing\" width=\"1140\" height=\"400\" srcset=\"https:\/\/www.lidering.com\/wp-content\/uploads\/2025\/07\/Sellos-en-seco-Dry-Seals-LID_2025-07_ENG_NL_interior2.webp 1140w, https:\/\/www.lidering.com\/wp-content\/uploads\/2025\/07\/Sellos-en-seco-Dry-Seals-LID_2025-07_ENG_NL_interior2-300x105.webp 300w, https:\/\/www.lidering.com\/wp-content\/uploads\/2025\/07\/Sellos-en-seco-Dry-Seals-LID_2025-07_ENG_NL_interior2-1024x359.webp 1024w, https:\/\/www.lidering.com\/wp-content\/uploads\/2025\/07\/Sellos-en-seco-Dry-Seals-LID_2025-07_ENG_NL_interior2-768x269.webp 768w\" sizes=\"(max-width: 1140px) 100vw, 1140px\" \/><\/h2>\n<h2 style=\"text-align: justify;\"><b>What are Dry Seals?<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Dry Seals are patented sealing systems, developed specifically for applications where lubrication and product leakage or contamination cannot be tolerated.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Unlike traditional mechanical seals, Dry Seals are sealing systems that do not have lubricated rub faces, thus eliminating one of the main failure points in some sectors. This makes them an ideal solution for applications with:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Highly abrasive products.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Powdery or granular fluids.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Extremely viscous substances.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Environments that do not tolerate leakage or cross-contamination.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">In addition, its compact design with no direct contact between moving parts reduces wear, maintenance and energy consumption.<\/span><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-19872\" src=\"https:\/\/www.lidering.com\/wp-content\/uploads\/2025\/07\/Sellos-en-seco-Dry-Seals-LID_2025-07_ENG_NL_interior1.webp\" alt=\"Dry seal unit for industrial protection against fluid leakage\" width=\"1140\" height=\"400\" srcset=\"https:\/\/www.lidering.com\/wp-content\/uploads\/2025\/07\/Sellos-en-seco-Dry-Seals-LID_2025-07_ENG_NL_interior1.webp 1140w, https:\/\/www.lidering.com\/wp-content\/uploads\/2025\/07\/Sellos-en-seco-Dry-Seals-LID_2025-07_ENG_NL_interior1-300x105.webp 300w, https:\/\/www.lidering.com\/wp-content\/uploads\/2025\/07\/Sellos-en-seco-Dry-Seals-LID_2025-07_ENG_NL_interior1-1024x359.webp 1024w, https:\/\/www.lidering.com\/wp-content\/uploads\/2025\/07\/Sellos-en-seco-Dry-Seals-LID_2025-07_ENG_NL_interior1-768x269.webp 768w\" sizes=\"(max-width: 1140px) 100vw, 1140px\" \/><\/p>\n<h2 style=\"text-align: justify;\"><b>How do Dry Seals work?<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Dry Seals are based on a different technology than conventional mechanical seals. These patented sealing systems have no friction faces that require lubrication or can break down due to vibration. They also do not require a barrier fluid or additional pressurisation to generate pressure with the product fluid, so there is no possibility of product contamination in the event of leakage.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The Dry Seals are equipped with:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Inner chamber sealed with a high resistance semi-fluid substance.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Rings made of highly abrasion resistant materials.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Controlled internal pressure keeps the rings in contact and ensures tightness.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">In addition, some models include the bearing in the flange body, further reducing the external elements, simplifying assembly and improving access for maintenance.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>Advantages of Dry Seals over other solutions<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Other systems for working with powdery fluids are air barriers, but these constantly consume compressed air (to keep the product \u2018fluid\u2019 away from the sealing area), which implies high operating costs.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Dry Seals, on the other hand, use a pressurised air line to function properly, but do not need to consume air flow; there is no air flow through the seal and therefore no waste of air.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Lidering Dry Seals prevent the main causes of failure in demanding working environments, increasing system reliability and lifetime, reducing operating costs and providing a clear return on investment in the medium term.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>Customised manufacture of seals for solids and expert technical advice<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Lidering&#8217;s technical team analyses the working environment, product composition, pressure, type of equipment and operating conditions to provide the most appropriate solution.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">In addition, we offer a complete service of technical advice, testing, repair and reconditioning of mechanical seals, adapted to the needs of the MRO sector.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Do you need a solution for sealing powder, solids or non-lubricated products?<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\"><a href=\"https:\/\/www.lidering.com\/en\/contact\/\" target=\"_blank\" rel=\"noopener\">Contact our Lidering team<\/a>. We will study your case and propose the most efficient and cost-effective solution in the long term.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>00In many industries, it is necessary to work with powdered products and the use of secondary fluids to lubricate and\/or cool the seals is not allowed. Therefore, a different solution to the conventional ones is needed. Conventional sealing systems tend to fail quickly due to rapid wear and tear, making Dry Seals an efficient and&hellip;&nbsp;<\/p>\n","protected":false},"author":2,"featured_media":19889,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":70,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[187],"tags":[],"class_list":["post-13172","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dry-seals-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dry Seals: seals for solids in industrial applications | Lidering<\/title>\n<meta name=\"description\" content=\"Dry Seals: lubrication-free sealing for powders and solids. 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