{"id":24451,"date":"2026-11-04T09:08:05","date_gmt":"2026-11-04T09:08:05","guid":{"rendered":"https:\/\/hansaplas.com\/?p=24451"},"modified":"2026-11-04T09:08:05","modified_gmt":"2026-11-04T09:08:05","slug":"types-of-gland-packing-the-ultimate-guide","status":"publish","type":"post","link":"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/","title":{"rendered":"Types of Gland Packing: The Ultimate Guide"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Gland packing, also called <a href=\"https:\/\/hansaplas.com\/zh\/%e8%81%9a%e5%9b%9b%e6%b0%9f%e4%b9%99%e7%83%af%e5%a1%ab%e6%96%99\/\">braided packing<\/a>, is made by braiding a specific material into a dense yet somewhat flexible rope. Its main job is sealing \u2014 typically in pumps and valves \u2014 to keep liquid from leaking out. Different industries need to seal different media, so the packing has to perform differently in each case, which is why there are so many types. This article covers how many types of packing there are and how to choose the right one for your equipment.<\/span><span style=\"font-weight: 400;\"> <img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24453 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/different-types-of-gland-packing.jpg\" alt=\"different types of gland packing\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/different-types-of-gland-packing.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/different-types-of-gland-packing-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 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\" style=\"cursor:inherit\">Table of 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\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><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><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#What_is_Gland_Packing_and_where_it_used%EF%BC%9F\" >What is Gland Packing and where it used\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#Types_of_Gland_Packing\" >Types of Gland Packing<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#1PTFETeflon_Gland_Packing\" >1.PTFE(Teflon) Gland Packing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#2Graphite_Gland_Packing\" >2.Graphite Gland Packing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#3Carbon_Fiber_Gland_Packing\" >3.Carbon Fiber Gland Packing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#4%E3%80%81AramidKevlar_Gland_Packing\" >4\u3001Aramid(Kevlar) Gland Packing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#5%E3%80%81Acrylic_Gland_Packing_with_PTFE_Coating\" >5\u3001Acrylic Gland Packing with PTFE Coating<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#6Cotton_Gland_Packing\" >6.Cotton Gland Packing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#7Flax_Fiber_Gland_Packing\" >7.Flax Fiber Gland Packing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#8Jute_Gland_Packing\" >8.Jute Gland Packing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#9Ramie_Fiber_Packing\" >9.Ramie Fiber Packing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#10Fiberglass_Packing\" >10.Fiberglass Packing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#11Ceramic_Fiber_Packing\" >11.Ceramic Fiber Packing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#12Composite_Packing\" >12.Composite Packing<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#Graphite_PTFE_Gland_Packing%EF%BC%88GFO_Packing%EF%BC%89\" >Graphite PTFE Gland Packing\uff08GFO Packing\uff09<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#Aramid_PTFEGraphite_Gland_Packing\" >Aramid PTFE\/Graphite Gland Packing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#PTFE_Carbon_Fiber_Gland_Packing\" >PTFE Carbon Fiber Gland Packing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#Graphite_and_Carbon_Fiber_Packing\" >Graphite and Carbon Fiber Packing<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#How_to_Select_the_Material_for_Gland_Packing\" >How to Select the Material for Gland Packing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/#Final_Thought\" >Final Thought<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_Gland_Packing_and_where_it_used%EF%BC%9F\"><\/span><span style=\"font-weight: 400;\">What is Gland Packing and where it used\uff1f<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Gland packing is <a href=\"https:\/\/hansaplas.com\/zh\/%e8%81%9a%e5%9b%9b%e6%b0%9f%e4%b9%99%e7%83%af%e5%af%86%e5%b0%81%e4%bb%b6\/\">a sealing material used in pumps and valves<\/a>. It is braided from fiber and comes in both rope and ring form, wrapped around the pump shaft or valve stem. The spot where it sits has a technical name: the stuffing box \u2014 a ring-shaped cavity located where the shaft or stem passes through the casing.<\/span><span style=\"font-weight: 400;\"> A gland or retaining nut is provided on the outside to ensure a snug fit against the shaft and housing.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24452 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Gland-Packing-Uses.jpg\" alt=\"Gland Packing Uses\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Gland-Packing-Uses.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Gland-Packing-Uses-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Types_of_Gland_Packing\"><\/span><span style=\"font-weight: 400;\">Types of Gland Packing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"1PTFETeflon_Gland_Packing\"><\/span><span style=\"font-weight: 400;\">1.PTFE(Teflon) Gland Packing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">PTFE packing comes in two types:<a href=\"https:\/\/hansaplas.com\/zh\/%e7%ba%af%e8%81%9a%e5%9b%9b%e6%b0%9f%e4%b9%99%e7%83%af%e5%a1%ab%e6%96%99\/\"> oiled and dry (oil-free)<\/a>. The inert oil is added for flexibility, so that during the break-in period the packing settles into steady service sooner without damaging the shaft sleeve or valve stem.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">PTFE is chemically inert. It stands up to strong acids, strong bases, and organic solvents, and it reacts with almost nothing. With PTFE gland packing, then, you don&#8217;t have to worry about the packing reacting with the medium you&#8217;re sealing \u2014 which is why it is widely used in <a href=\"https:\/\/hansaplas.com\/zh\/%e5%ba%94%e7%94%a8\/%e5%8c%96%e5%ad%a6\/\">corrosive chemical plants and acid-handling equipment.<\/a><\/span><\/p>\n<p><span style=\"font-weight: 400;\">PTFE fiber also doesn&#8217;t shed, so there are no loose fibers breaking off to contaminate the medium \u2014 a good fit for clean, contamination-free service such as<a href=\"https:\/\/hansaplas.com\/zh\/%e5%ba%94%e7%94%a8\/%e9%a3%9f%e5%93%81%e5%92%8c%e9%a5%ae%e6%96%99\/\"> food or pharmaceutical processing<\/a>.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">PTFE gland packing does have its drawbacks, though. It doesn&#8217;t dissipate heat well, and its mechanical strength is lower than aramid or graphite. PTFE&#8217;s maximum continuous service temperature is <a href=\"https:\/\/hansaplas.com\/zh\/%e8%81%9a%e5%9b%9b%e6%b0%9f%e4%b9%99%e7%83%af%e6%b8%a9%e5%ba%a6%e8%8c%83%e5%9b%b4\/\">260 \u00b0C (500 \u00b0F)<\/a>; above that limit it creeps and loses mechanical strength, and the seal fails.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24454 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/PTFE-Gland-Packing.jpg\" alt=\"PTFE\uff08Teflon\uff09 Gland Packing\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/PTFE-Gland-Packing.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/PTFE-Gland-Packing-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"2Graphite_Gland_Packing\"><\/span><span style=\"font-weight: 400;\">2.Graphite Gland Packing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">There are two kinds: <a href=\"https:\/\/hansaplas.com\/zh\/%e7%9f%b3%e5%a2%a8%e5%a1%ab%e6%96%99\/\">packing braided from pure graphite yarn<\/a>, and flexible graphite packing made through special processing. They perform much the same; the difference is mainly in flexibility.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pure graphite conducts heat, has low friction, and resists chemicals. Graphite packing&#8217;s long-term service temperature range is -200 \u00b0C to 450 \u00b0C, and as high as 600 \u00b0C in a vacuum. Worth noting: in steam or water, graphite tops out at 250\u2013280 \u00b0C. Its low friction reduces wear on the shaft sleeve, and it needs no added lubricant, which saves cost.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Flexible graphite packing, also called expanded graphite packing, is made by compressing graphite into flexible foil or yarn. The resulting packing conforms very well, seals efficiently, reduces wear on the shaft sleeve or valve stem, and cuts the energy the equipment uses.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">If your project involves <a href=\"https:\/\/hansaplas.com\/zh\/%e5%ba%94%e7%94%a8\/%e7%9f%b3%e6%b2%b9%e5%92%8c%e5%a4%a9%e7%84%b6%e6%b0%94\/\">high-temperature steam or hydrocarbons<\/a> \u2014 or your equipment is a hot-process pump, a boiler feed pump, a steam valve, or furnace equipment \u2014 graphite packing is a perfect match for those conditions.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24455 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Graphite-Gland-Packing.jpg\" alt=\"Graphite Gland Packing\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Graphite-Gland-Packing.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Graphite-Gland-Packing-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"3Carbon_Fiber_Gland_Packing\"><\/span><span style=\"font-weight: 400;\">3.Carbon Fiber Gland Packing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Carbon fiber packing is braided from carbonized synthetic fiber and is usually impregnated with graphite and a lubricant. Its main advantages are high mechanical strength and good thermal conductivity \u2014 it handles high temperatures up to 400 \u00b0C, even 600 \u00b0C. It is a strong fit for high-speed rotating pump equipment such as centrifugal pumps, agitators, and heavy refinery equipment.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Carbon fiber has good chemical resistance, generally holding up across a pH range of 2 to 12. That makes carbon fiber packing suitable for services with neither extreme heat nor strongly corrosive chemicals.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Carbon fiber is less brittle than graphite, so carbon fiber packing actually wears the shaft sleeve or valve stem less.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24456 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Carbon-Fiber-Gland-Packing.jpg\" alt=\"Carbon Fiber Gland Packing\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Carbon-Fiber-Gland-Packing.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Carbon-Fiber-Gland-Packing-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"4%E3%80%81AramidKevlar_Gland_Packing\"><\/span><span style=\"font-weight: 400;\">4\u3001Aramid(Kevlar) Gland Packing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Aramid is also called Kevlar \u2014 a trademark name owned by DuPont. Both refer to the same material. Aramid packing is usually impregnated with PTFE or a lubricant, because the fiber itself is hard and needs reduced friction. Aramid has extremely high tensile strength, outstanding abrasion resistance, and high resilience, so it can take solid impact \u2014 which is why many engineers use aramid in place of asbestos packing.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">But high hardness cuts both ways. Tighten the packing too much, or run it with too little lubricant, and it can chew up the shaft sleeve. That&#8217;s why you add lubricant \u2014 or switch to a hardened shaft sleeve.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Aramid is typically used in heavy-duty, high-pressure service, and in abrasive slurries where good wear resistance is needed \u2014 slurry and ash-handling pumps, for example.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24458 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/AramidKevlar-Gland-Packing-1.jpg\" alt=\"Aramid(Kevlar) Gland Packing\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/AramidKevlar-Gland-Packing-1.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/AramidKevlar-Gland-Packing-1-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"5%E3%80%81Acrylic_Gland_Packing_with_PTFE_Coating\"><\/span><span style=\"font-weight: 400;\">5\u3001Acrylic Gland Packing with PTFE Coating<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Acrylic fiber is very hard and resists extrusion well, but it can wear the shaft sleeve too. So acrylic packing is pretreated with PTFE before braiding: the fiber is soaked in a PTFE emulsion, then dried and cured into yarn. It is braided diagonally, and during braiding the yarn gets a second impregnation of PTFE emulsion \u2014 which leaves acrylic packing more lubricious and more resistant to chemical attack.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Acrylic packing delivers both environmental and economic benefits. It contains no asbestos and no heavy metals, and unlike graphite it doesn&#8217;t shed and contaminate the medium. That&#8217;s why acrylic PTFE packing is common in paper mills and pulp mills: it keeps the pulp from darkening, and it costs less than PTFE packing and aramid packing.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Even with the PTFE impregnation, acrylic PTFE packing is still not suitable for strong acids, strong bases, or strong oxidizers \u2014 its working pH range is 2 to 12. It is suited to long-term service at moderate temperature, high pressure, and high speed.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24459 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Acrylic-Gland-Packing-with-PTFE-Coating.jpg\" alt=\"Acrylic Gland Packing with PTFE Coating\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Acrylic-Gland-Packing-with-PTFE-Coating.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Acrylic-Gland-Packing-with-PTFE-Coating-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"6Cotton_Gland_Packing\"><\/span><span style=\"font-weight: 400;\">6.Cotton Gland Packing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Cotton is a natural fiber, and packing braided from it is flexible and springy. It is usually impregnated with a lubricant such as grease or tallow, and its maximum service temperature is 120 \u00b0C. Cotton fiber packing has poor wear resistance, so it suits low-pressure, low-speed service.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24460 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Cotton-Gland-Packing.jpg\" alt=\"Cotton Gland Packing\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Cotton-Gland-Packing.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Cotton-Gland-Packing-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"7Flax_Fiber_Gland_Packing\"><\/span><span style=\"font-weight: 400;\">7.Flax Fiber Gland Packing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Flax is a plant fiber, and the packing braided from it has high tensile strength, resists breaking, and is very durable. It is usually impregnated with a lubricating and blocking agent, because flax takes up moisture and swells \u2014 yet it is also water-resistant, so in wet service, once it has absorbed enough moisture, the seal actually gets tighter.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Flax gland packing&#8217;s long-term service temperature is -40 to 120 \u00b0C, and its working pH range is 5 to 9. It is mostly used in marine and offshore engineering \u2014 for stern tube, rudder stock, and seawater pump seals, among others.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24461 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Flax-Fiber-Gland-Packing.jpg\" alt=\"Flax Fiber Gland Packing\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Flax-Fiber-Gland-Packing.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Flax-Fiber-Gland-Packing-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"8Jute_Gland_Packing\"><\/span><span style=\"font-weight: 400;\">8.Jute Gland Packing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Jute packing is similar to flax packing. The two perform about the same and cost about the same, but there are small differences.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Jute packing fiber is a little stiffer than flax fiber and not as soft, and its wear resistance is somewhat lower too. At the same time, jute packing costs less than flax packing.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24462 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Jute-Gland-Packing.jpg\" alt=\"jute gland packing\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Jute-Gland-Packing.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Jute-Gland-Packing-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"9Ramie_Fiber_Packing\"><\/span><span style=\"font-weight: 400;\">9.Ramie Fiber Packing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In the trade, ramie fiber packing is understood by default to be \u201cpacking for water service,\u201d because in a water medium the ramie fiber swells and softens; the packing&#8217;s structural strength goes up instead of down, so it wears better and stands up to solids in the medium scouring past it. Ramie packing&#8217;s long-term working temperature is -50 to 140 \u00b0C, and its pH range is 2 to 12.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ramie packing is often used for ship seals, and also at food and beverage plants, wineries, and paper mills; some filtration equipment uses it as well.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24463 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Ramie-Fiber-Packing.jpg\" alt=\"Ramie Fiber Packing\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Ramie-Fiber-Packing.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Ramie-Fiber-Packing-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"10Fiberglass_Packing\"><\/span><span style=\"font-weight: 400;\">10.Fiberglass Packing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Fiberglass packing has high mechanical strength and extremely high temperature resistance \u2014 typically up to 550 \u00b0C. But fiberglass is brittle, with poor wear resistance and poor flex resistance, so it is only suitable for static seals or low-speed dynamic seals.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24464 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Fiberglass-Packing.jpg\" alt=\"Fiberglass Packing\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Fiberglass-Packing.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Fiberglass-Packing-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"11Ceramic_Fiber_Packing\"><\/span><span style=\"font-weight: 400;\">11.Ceramic Fiber Packing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Ceramic fiber packing holds up to heat even better than fiberglass packing \u2014 its maximum working temperature is 1000 to 1050 \u00b0C. But both fibers are brittle, so ceramic fiber packing usually has fiberglass or alloy wire worked into it to raise its tensile strength. It has good chemical resistance, standing up to most acids, oils, water, steam, and hydrocarbons. It is typically used in ultra-high-temperature applications: boiler doors, high-temperature furnace doors, kiln gaps, oven insulation, and the like.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24465 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Ceramic-Fiber-Packing.jpg\" alt=\"Ceramic Fiber Packing\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Ceramic-Fiber-Packing.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Ceramic-Fiber-Packing-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"12Composite_Packing\"><\/span><span style=\"font-weight: 400;\">12.Composite Packing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Graphite_PTFE_Gland_Packing%EF%BC%88GFO_Packing%EF%BC%89\"><\/span><span style=\"font-weight: 400;\">Graphite PTFE Gland Packing\uff08GFO Packing\uff09<\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\"><a href=\"https:\/\/hansaplas.com\/zh\/%e8%81%9a%e5%9b%9b%e6%b0%9f%e4%b9%99%e7%83%af%e7%9f%b3%e5%a2%a8%e7%9b%98%e6%a0%b9\/\">GFO packing<\/a> comes in two forms. One is packing braided from PTFE yarn and coated evenly with graphite particles; the other is packing cross-braided from two yarns, PTFE fiber and graphite fiber. Both are GFO packing: they combine the chemical inertness of PTFE with the heat conduction and lubrication of graphite, and they hold up to 280 to 300 \u00b0C.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Because GFO packing makes up for plain PTFE&#8217;s weak mechanical strength, it is widely used in refineries, chemical plants, and other industrial settings that need chemical resistance, low friction, and good sealing all at once.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24466 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Graphite-PTFE-Gland-Packing\uff08GFO-Packing\uff09.jpg\" alt=\"Graphite PTFE Gland Packing\uff08GFO Packing\uff09\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Graphite-PTFE-Gland-Packing\uff08GFO-Packing\uff09.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Graphite-PTFE-Gland-Packing\uff08GFO-Packing\uff09-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Aramid_PTFEGraphite_Gland_Packing\"><\/span><span style=\"font-weight: 400;\">Aramid PTFE\/Graphite Gland Packing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">To strike a performance balance and offset the low hardness of PTFE and graphite, manufacturers developed packing with aramid fiber at the corners and PTFE or graphite in the body \u2014 built to meet the specific demands of different applications.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24467 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Aramid-Graphite-Gland-Packing.jpg\" alt=\"Aramid Graphite Gland Packing\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Aramid-Graphite-Gland-Packing.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Aramid-Graphite-Gland-Packing-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24468 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Aramid-PTFE-Gland-Packing.jpg\" alt=\"Aramid PTFE Gland Packing\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Aramid-PTFE-Gland-Packing.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Aramid-PTFE-Gland-Packing-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"PTFE_Carbon_Fiber_Gland_Packing\"><\/span><span style=\"font-weight: 400;\">PTFE Carbon Fiber Gland Packing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">It combines <a href=\"https:\/\/hansaplas.com\/zh\/%e7%a2%b3%e5%a1%ab%e5%85%85%e8%81%9a%e5%9b%9b%e6%b0%9f%e4%b9%99%e7%83%af\/\">carbon fiber&#8217;s strength with PTFE&#8217;s corrosion resistance and low friction<\/a>, overcoming the weaknesses of plain PTFE packing, which cold-flows and wears poorly, and of pure carbon fiber packing, which tends to wear the shaft journal.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24469 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/PTFE-Carbon-Fiber-Gland-Packing.jpg\" alt=\"PTFE Carbon Fiber Gland Packing\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/PTFE-Carbon-Fiber-Gland-Packing.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/PTFE-Carbon-Fiber-Gland-Packing-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Graphite_and_Carbon_Fiber_Packing\"><\/span><span style=\"font-weight: 400;\">Graphite and Carbon Fiber Packing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">Combining the wear resistance, high strength, and heat resistance of graphite and carbon fiber, it has a long-term working temperature range of -250 to 650 \u00b0C and holds its performance steady across a wide pH range. It is typically used in pumps, valves, reactors, and reciprocating compressors that handle high-temperature, high-pressure fluids containing fine particles, in the petrochemical, power generation, metallurgy, and paper industries.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24470 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Graphite-and-Carbon-Fiber-Packing.jpg\" alt=\"Graphite and Carbon Fiber Packing\" width=\"700\" height=\"450\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Graphite-and-Carbon-Fiber-Packing.jpg 700w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/11\/Graphite-and-Carbon-Fiber-Packing-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Select_the_Material_for_Gland_Packing\"><\/span><span style=\"font-weight: 400;\">How to Select the Material for Gland Packing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">You should pick the packing material from the service conditions: the fluid being sealed, the temperature, the pressure, and the shaft speed.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">High-temperature steam or oils: graphite or carbon fiber. These are the heat-resistant options.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Corrosive chemicals, or food-grade service: PTFE. Nothing else is as chemically inert.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Abrasive slurries or sandy water: aramid. It is the one built for wear.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Then factor in the equipment itself. A valve sits still; the packing only has to hold pressure. A pump runs continuously, so wear resistance becomes the deciding property.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Two combinations to avoid: plain PTFE in a high-speed pump, where it overheats and deforms; and aramid on a brass shaft, where it scores and wears the shaft surface.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Final_Thought\"><\/span><span style=\"font-weight: 400;\">Final Thought<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">That covers just about every packing material on the market, and each one is aimed at a different set of service conditions. If you have read this far and still aren&#8217;t sure which packing suits your equipment best, <a href=\"https:\/\/hansaplas.com\/zh\/%e8%81%94%e7%b3%bb%e6%88%91%e4%bb%ac\/\">get in touch with us<\/a>. HANSA is a professional packing manufacturer and can provide a solution built around your application.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Gland packing, also called braided packing, is made by braiding a specific material into a dense yet somewhat flexible rope. Its main job is sealing [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":24471,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-24451","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Types of Gland Packing: The Ultimate Guide - Hansa<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hansaplas.com\/zh\/types-of-gland-packing-the-ultimate-guide\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Types of Gland Packing: The Ultimate Guide - Hansa\" \/>\n<meta property=\"og:description\" content=\"Gland packing, also called braided packing, is made by braiding a specific material into a dense yet somewhat flexible rope. 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