{"id":7234,"date":"2026-10-19T16:20:22","date_gmt":"2026-10-19T08:20:22","guid":{"rendered":"https:\/\/walleglobal.com\/?p=7234"},"modified":"2026-10-19T16:22:15","modified_gmt":"2026-10-19T08:22:15","slug":"so-legen-sie-eine-benutzerdefinierte-industrielleckschutzfolie-fest","status":"publish","type":"post","link":"https:\/\/walleglobal.com\/de\/2026\/10\/how-to-specify-custom-industrial-seal\/","title":{"rendered":"So legen Sie eine individuelle Industrielle Siegelung fest: 10 wichtige Details, die Sie an Ihren Hersteller senden sollten"},"content":{"rendered":"\n<!doctype html>\n<html lang=\"en\"><head><meta charset=\"utf-8\"><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\"><meta name=\"robots\" content=\"noindex,nofollow\"><title>How to Specify a Custom Industrial Seal: 10 Key Details to Send Your Manufacturer<\/title><style>html,body{margin:0;padding:0;}\n\/* WALLE custom seal guide. 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}\n  .csg-rfq-privacy { font-size:12px!important; }\n  .csg-faq summary { font-size:17px; }\n  .csg-faq>div { padding-right:10px; }\n  .csg-faq>div p { font-size:16px; }\n  .csg-contact-copy,.csg-contact>aside { padding:28px 24px; }\n  .csg-contact h2 { font-size:30px; }\n  .csg-contact p { font-size:15px; }\n  .csg-contact>aside p { font-size:13px; }\n  .csg-back-top { right:14px; bottom:14px; }\n}\n@media print {\n  .csg-page { left:auto; width:auto; margin:0; overflow:visible; }\n  .csg-hero,.csg-sidebar,.csg-back-top,.csg-reading-progress,.csg-rfq-actions { display:none; }\n  .csg-shell { display:block; width:100%; padding:0; }\n  .csg-section { margin-top:20px; padding-top:20px; }\n  .csg-section h2 { font-size:25px; }\n  .csg-rfq,.csg-table-wrap { break-inside:avoid; }\n}\n@media (prefers-reduced-motion:reduce) {\n  .csg-page *,.csg-page *::before,.csg-page *::after { scroll-behavior:auto!important; transition:none!important; animation:none!important; }\n}\n\n<\/style><\/head><body>\n<div class=\"csg-page\" id=\"csg-top\" data-csg-page>\n  <div class=\"csg-reading-progress\" aria-hidden=\"true\"><span data-csg-progress><\/span><\/div>\n  <header class=\"csg-hero\">\n    <div class=\"csg-hero-inner\">\n      <div class=\"csg-hero-copy\"><div class=\"csg-breadcrumb\">WALLE <span>\/<\/span> Seal Selection &amp; Engineering<\/div><div class=\"csg-eyebrow\"><i><\/i> THE CUSTOM SEAL SPECIFICATION GUIDE<\/div>\n        <h1>How to Specify a Custom Industrial Seal: <span>10 Key Details<\/span> to Send Your Manufacturer<\/h1>\n        <p class=\"csg-hero-deck\">Define the application. Bound the operating conditions. Send the drawing. A complete specification helps your manufacturer move from uncertainty to an application-specific quotation.<\/p>\n        <div class=\"csg-hero-actions\"><a class=\"csg-button is-orange\" href=\"#csg-application\">Explore the ten details <span>\u2193<\/span><\/a><a class=\"csg-button is-light-outline\" href=\"#csg-checklist\">Build your RFQ brief <span>\u2197<\/span><\/a><\/div>\n        <div class=\"csg-hero-meta\"><span><b>10<\/b> essential inputs<\/span><span><b>6<\/b> development stages<\/span><span><b>1<\/b> clearer specification<\/span><\/div>\n      <\/div>\n<figure class=\"csg-blueprint\" aria-label=\"Seal specification schematic, not to scale\">\n  <div class=\"csg-drawing-header\"><span>SEAL DESIGN \/ INPUT SHEET<\/span><b>DWG \u00b7 REV \u00b7 COMPOUND<\/b><\/div>\n  <svg viewBox=\"0 0 680 535\" role=\"img\" aria-labelledby=\"csg-svg-title csg-svg-desc\">\n    <title id=\"csg-svg-title\">A custom seal needs more than a diameter<\/title>\n    <desc id=\"csg-svg-desc\">Schematic seal section with dimensions, pressure direction and material callouts. Not a manufacturing drawing.<\/desc>\n    <defs>\n      <linearGradient id=\"csg-metal\" x1=\"0\" y1=\"0\" x2=\"0\" y2=\"1\"><stop stop-color=\"#e3eaf1\"\/><stop offset=\".48\" stop-color=\"#7d93ad\"\/><stop offset=\"1\" stop-color=\"#3c526c\"\/><\/linearGradient>\n      <linearGradient id=\"csg-polymer\" x1=\"0\" y1=\"0\" x2=\"1\" y2=\"1\"><stop stop-color=\"#93d0ff\"\/><stop offset=\".5\" stop-color=\"#3188f3\"\/><stop offset=\"1\" stop-color=\"#164b9e\"\/><\/linearGradient>\n      <pattern id=\"csg-hatch\" width=\"11\" height=\"11\" patternUnits=\"userSpaceOnUse\" patternTransform=\"rotate(45)\"><path d=\"M0 0V11\" stroke=\"#92a4bb\" stroke-width=\"2\" opacity=\".25\"\/><\/pattern>\n      <marker id=\"csg-arrow\" viewBox=\"0 0 8 8\" refX=\"4\" refY=\"4\" markerWidth=\"6\" markerHeight=\"6\" orient=\"auto-start-reverse\"><path d=\"M0 0L8 4L0 8Z\" fill=\"#8bbfff\"\/><\/marker>\n    <\/defs>\n    <g fill=\"none\" stroke=\"#688db8\" opacity=\".25\"><path d=\"M40 90H640M40 180H640M40 270H640M40 360H640M40 450H640\" stroke-dasharray=\"3 9\"\/><path d=\"M100 40V485M220 40V485M340 40V485M460 40V485M580 40V485\" stroke-dasharray=\"3 9\"\/><\/g>\n    <path d=\"M75 198H245V226H435V198H605V267H75Z\" fill=\"url(#csg-metal)\" stroke=\"#a2b2c7\"\/>\n    <path d=\"M75 198H245V226H435V198H605V267H75Z\" fill=\"url(#csg-hatch)\"\/>\n    <path d=\"M75 340H605V400H75Z\" fill=\"url(#csg-metal)\" stroke=\"#a2b2c7\"\/>\n    <path d=\"M270 230H411V278H383V317H368V276H310V317H291V279H270Z\" fill=\"url(#csg-polymer)\" stroke=\"#a5d7ff\" stroke-width=\"2\"\/>\n    <path d=\"M270 230H411V244H270Z\" fill=\"#bce0ff\" opacity=\".35\"\/>\n    <path d=\"M310 284l10-14 10 14 10-14 10 14 10-14\" fill=\"none\" stroke=\"#ffb568\" stroke-width=\"5\" stroke-linejoin=\"round\"\/>\n    <path d=\"M48 303H637\" stroke=\"#c9dbec\" stroke-dasharray=\"15 5 3 5\" opacity=\".6\"\/>\n    <g stroke=\"#8bbfff\" fill=\"none\" stroke-width=\"1.3\"><path d=\"M246 157H435\" marker-start=\"url(#csg-arrow)\" marker-end=\"url(#csg-arrow)\"\/><path d=\"M245 151V213M435 151V213\"\/><path d=\"M473 230V318\" marker-start=\"url(#csg-arrow)\" marker-end=\"url(#csg-arrow)\"\/><path d=\"M444 230H482M389 318H482\"\/><path d=\"M315 387V448H178\"\/><path d=\"M371 244V101H520\"\/><\/g>\n    <g fill=\"#b9d8ff\" font-family=\"Arial, sans-serif\" font-size=\"13\" font-weight=\"700\"><text x=\"340\" y=\"143\" text-anchor=\"middle\">GROOVE WIDTH + TOLERANCE<\/text><text x=\"495\" y=\"273\">DEPTH<\/text><text x=\"495\" y=\"291\">+ GAP<\/text><text x=\"178\" y=\"471\">MATING SURFACE \/ FINISH<\/text><text x=\"415\" y=\"86\">EXACT MATERIAL GRADE<\/text><\/g>\n    <path d=\"M104 308H222\" stroke=\"#ffb568\" stroke-width=\"4\"\/><path d=\"M222 308l-14-9v18Z\" fill=\"#ffb568\"\/>\n    <text x=\"105\" y=\"291\" fill=\"#ffb568\" font-family=\"Arial, sans-serif\" font-size=\"13\" font-weight=\"700\">PRESSURE<\/text>\n    <g fill=\"#102342\" stroke=\"#5277aa\"><circle cx=\"251\" cy=\"215\" r=\"15\"\/><circle cx=\"437\" cy=\"337\" r=\"15\"\/><circle cx=\"381\" cy=\"103\" r=\"15\"\/><\/g>\n    <g fill=\"#e7f3ff\" font-family=\"Arial, sans-serif\" font-size=\"12\" font-weight=\"700\" text-anchor=\"middle\"><text x=\"251\" y=\"219\">07<\/text><text x=\"437\" y=\"341\">05<\/text><text x=\"381\" y=\"107\">08<\/text><\/g>\n  <\/svg>\n  <figcaption><span>SCHEMATIC \u00b7 NOT TO SCALE<\/span><p>The drawing defines fit. Operating conditions define whether it works.<\/p><\/figcaption>\n<\/figure>\n    <\/div>\n    <div class=\"csg-hero-footer\"><span>APPLICATION<\/span><i>\u2192<\/i><span>OPERATING WINDOW<\/span><i>\u2192<\/i><span>DRAWING &amp; MATERIAL<\/span><i>\u2192<\/i><span>VALIDATION &amp; QUOTE<\/span><\/div>\n  <\/header>\n  <div class=\"csg-shell\" data-csg-shell>\n    <aside class=\"csg-sidebar\" data-csg-sidebar><div class=\"csg-sidebar-card\" data-csg-card>\n      <div class=\"csg-toc-header\"><span>IN THIS GUIDE<\/span><button type=\"button\" aria-expanded=\"false\" aria-controls=\"csg-toc\" data-csg-toggle>Article contents <b aria-hidden=\"true\">+<\/b><\/button><\/div>\n      <nav class=\"csg-toc\" id=\"csg-toc\" data-csg-toc aria-label=\"Article contents\"><a href=\"#csg-application\"><span>01<\/span><em>Application &amp; equipment<\/em><\/a>\n<a href=\"#csg-function\"><span>02<\/span><em>Function &amp; movement<\/em><\/a>\n<a href=\"#csg-medium\"><span>03<\/span><em>Operating medium<\/em><\/a>\n<a href=\"#csg-temperature\"><span>04<\/span><em>Temperature range<\/em><\/a>\n<a href=\"#csg-pressure\"><span>05<\/span><em>Pressure &amp; transients<\/em><\/a>\n<a href=\"#csg-motion\"><span>06<\/span><em>Speed &amp; duty cycle<\/em><\/a>\n<a href=\"#csg-dimensions\"><span>07<\/span><em>Dimensions &amp; groove<\/em><\/a>\n<a href=\"#csg-material\"><span>08<\/span><em>Material &amp; compliance<\/em><\/a>\n<a href=\"#csg-history\"><span>09<\/span><em>Failure history &amp; samples<\/em><\/a>\n<a href=\"#csg-quantity\"><span>10<\/span><em>Quantity &amp; delivery<\/em><\/a>\n<a href=\"#csg-checklist\"><span>+<\/span><em>Practical RFQ checklist<\/em><\/a>\n<a href=\"#csg-workflow\"><span>+<\/span><em>Development process<\/em><\/a>\n<a href=\"#csg-faq\"><span>+<\/span><em>Frequently asked questions<\/em><\/a>\n<a href=\"#csg-quote\"><span>+<\/span><em>Request a quote<\/em><\/a><\/nav>\n      <div class=\"csg-toc-note\"><span>UNKNOWN IS BETTER THAN A GUESS<\/span><p>Flag missing information so the manufacturer can identify the next measurement or test.<\/p><a href=\"#csg-checklist\">Open the RFQ builder \u2197<\/a><\/div>\n    <\/div><\/aside>\n    <main class=\"csg-main\"><article class=\"csg-article\" data-csg-article>\n      <section class=\"csg-intro\"><div class=\"csg-tags\"><span>Custom industrial seals<\/span><span>Engineering specification<\/span><span>RFQ preparation<\/span><\/div><p>Ordering a custom industrial seal involves more than providing a diameter and choosing a rubber or plastic material. The seal must fit the equipment, withstand the operating environment, and perform reliably under the actual working conditions.<\/p>\n<p>When important specifications are missing, manufacturers may need additional clarification before recommending a material, reviewing the design, or preparing a quotation. Incomplete information can also lead to unnecessary revisions, unsuitable prototypes, and avoidable delays.<\/p>\n<p>Whether you need a custom O-ring, PTFE seal, FFKM seal, spring-energized seal, hydraulic seal, or precision-molded rubber component, preparing the right information can make the development process more efficient.<\/p>\n<p>In this guide, we explain the 10 key details to provide when requesting a custom industrial seal from a manufacturer.<\/p>\n<blockquote><p>A custom seal is specified by the environment it must survive\u2014not by dimensions alone.<\/p><\/blockquote><div class=\"csg-roadmap\"><a href=\"#csg-application\"><b>01<\/b><span>Application \/ equipment<\/span><\/a><a href=\"#csg-function\"><b>02<\/b><span>Sealing function<\/span><\/a><a href=\"#csg-medium\"><b>03<\/b><span>Operating medium<\/span><\/a><a href=\"#csg-temperature\"><b>04<\/b><span>Temperature range<\/span><\/a><a href=\"#csg-pressure\"><b>05<\/b><span>Pressure profile<\/span><\/a><a href=\"#csg-motion\"><b>06<\/b><span>Motion and duty cycle<\/span><\/a><a href=\"#csg-dimensions\"><b>07<\/b><span>Dimensions and drawing<\/span><\/a><a href=\"#csg-material\"><b>08<\/b><span>Material and compliance<\/span><\/a><a href=\"#csg-history\"><b>09<\/b><span>Failure history<\/span><\/a><a href=\"#csg-quantity\"><b>10<\/b><span>Quantity, quality and delivery<\/span><\/a><\/div><\/section>\n      <section class=\"csg-section\" id=\"csg-application\" data-csg-section><div class=\"csg-section-heading\"><span>SPECIFICATION INPUT 01<\/span><h2>1. Describe the Application and Equipment<\/h2><\/div><p>Start by explaining where the seal will be installed and what the equipment does.<\/p>\n<p>A seal used in a hydraulic cylinder has different requirements from one used in a chemical pump, semiconductor processing system, analytical instrument, or adhesive dispensing machine.<\/p>\n<p>Provide the following information:<\/p>\n<ul>\n<li>Equipment or machine type<\/li>\n<li>Industry and application<\/li>\n<li>Seal installation location<\/li>\n<li>Component being sealed, such as a shaft, piston, rod, valve, or housing<\/li>\n<li>Whether the seal is exposed to the process fluid or the external environment<\/li>\n<li>Any special operating or maintenance requirements<\/li>\n<\/ul>\n<p>If possible, include a photograph of the assembly or a simplified drawing showing the seal&#8217;s location.<\/p>\n<p>Understanding the application helps the manufacturer evaluate the relevant operating conditions before recommending a seal design.<\/p>\n<\/section>\n<section class=\"csg-section\" id=\"csg-function\" data-csg-section><div class=\"csg-section-heading\"><span>SPECIFICATION INPUT 02<\/span><h2>2. Define the Sealing Function and Type of Movement<\/h2><\/div><p>The required sealing function determines which seal designs should be considered.<\/p>\n<p>Common applications include:<\/p>\n<ul>\n<li><strong>Static sealing:<\/strong> The mating components remain stationary relative to each other.<\/li>\n<li><strong>Reciprocating sealing:<\/strong> A rod or piston moves back and forth.<\/li>\n<li><strong>Rotary sealing:<\/strong> A shaft rotates relative to the seal.<\/li>\n<li><strong>Oscillating sealing:<\/strong> The components move through a limited angular range.<\/li>\n<li><strong>Dynamic high-pressure sealing:<\/strong> The seal must maintain performance during movement and pressure changes.<\/li>\n<\/ul>\n<p>Also explain whether the seal must prevent external leakage, retain internal pressure, separate two fluids, prevent contamination, or perform more than one function.<\/p>\n<p>For dynamic applications, provide the movement direction, frequency, stroke length or rotational speed, and expected duty cycle.<\/p>\n<p>A design suitable for static sealing may not be appropriate for continuous movement. Identifying the sealing function early helps narrow the available design options.<\/p>\n<\/section>\n<section class=\"csg-section\" id=\"csg-medium\" data-csg-section><div class=\"csg-section-heading\"><span>SPECIFICATION INPUT 03<\/span><h2>3. Identify the Operating Medium<\/h2><\/div><p>The operating medium is one of the most important factors in industrial seal selection.<\/p>\n<p>Specify the exact fluid, gas, chemical, lubricant, adhesive, or other substance that contacts the seal. When relevant, include the chemical concentration, mixture composition, and possible contaminants.<\/p>\n<p>For example, a seal exposed to hydraulic oil may require a different material from one exposed to a strong cleaning agent, solvent mixture, hot adhesive, or reactive process gas.<\/p>\n<p>Also consider conditions that may occur outside normal operation:<\/p>\n<ul>\n<li>Cleaning and flushing chemicals<\/li>\n<li>Startup and shutdown fluids<\/li>\n<li>Lubricants and additives<\/li>\n<li>Process residues<\/li>\n<li>Steam or hot-water exposure<\/li>\n<li>Changes in chemical concentration<\/li>\n<\/ul>\n<p>Do not rely solely on a generic material name to establish compatibility. Performance depends on the specific compound, the medium, temperature, exposure time, and operating conditions.<\/p>\n<p>If the chemical composition is confidential, provide as much relevant compatibility information as your organization can disclose.<\/p>\n<\/section>\n<section class=\"csg-section\" id=\"csg-temperature\" data-csg-section><div class=\"csg-section-heading\"><span>SPECIFICATION INPUT 04<\/span><h2>4. Provide the Complete Temperature Range<\/h2><\/div><div class=\"csg-range-panel\" role=\"group\" aria-label=\"Complete temperature window\"><div><span>MINIMUM<\/span><b>Cold start<\/b><\/div><div><span>NORMAL<\/span><b>Steady duty<\/b><\/div><div><span>CONTINUOUS MAX<\/span><b>Upper limit<\/b><\/div><div><span>SHORT PEAK<\/span><b>Time + cycles<\/b><\/div><\/div><p>A manufacturer&#8217;s material recommendation should consider more than the normal operating temperature.<\/p>\n<p>Provide:<\/p>\n<ul>\n<li>Minimum operating temperature<\/li>\n<li>Normal operating temperature<\/li>\n<li>Maximum continuous temperature<\/li>\n<li>Short-term temperature peaks<\/li>\n<li>Heating and cooling cycles<\/li>\n<li>Cleaning or sterilization temperatures, if applicable<\/li>\n<li>Expected exposure duration at extreme temperatures<\/li>\n<\/ul>\n<p>For example, a seal may operate at a moderate temperature for most of the production cycle but experience a much higher temperature during cleaning or process shutdown.<\/p>\n<p>Repeated thermal cycling can also affect material properties, dimensional stability, and sealing force.<\/p>\n<p>When evaluating a material, confirm that its specified temperature range applies to the actual compound and operating environment. Temperature capability alone does not guarantee compatibility with the process medium or suitability for a particular seal design.<\/p>\n<\/section>\n<section class=\"csg-section\" id=\"csg-pressure\" data-csg-section><div class=\"csg-section-heading\"><span>SPECIFICATION INPUT 05<\/span><h2>5. Specify Operating Pressure and Pressure Changes<\/h2><\/div><aside class=\"csg-callout\"><span>DESIGN CONNECTION<\/span><p>Pressure, temperature and extrusion gap must be reviewed together. A pressure rating alone does not define the seal configuration.<\/p><\/aside><p>Pressure affects seal deformation, contact force, extrusion risk, and overall sealing reliability.<\/p>\n<p>Provide the following details:<\/p>\n<ul>\n<li>Normal operating pressure<\/li>\n<li>Maximum operating pressure<\/li>\n<li>Pressure surges or transient peaks<\/li>\n<li>Vacuum conditions, if applicable<\/li>\n<li>Pressure direction<\/li>\n<li>Differential pressure across the seal<\/li>\n<li>Frequency of pressure changes<\/li>\n<\/ul>\n<p>For higher-pressure applications, also identify the clearance between mating components. Excessive clearance can increase the risk of seal extrusion, particularly when pressure and temperature approach the limits of the selected design.<\/p>\n<p>If the equipment operates through repeated pressurization and depressurization, explain the cycle frequency and any known pressure-related failure history.<\/p>\n<p>These details help the manufacturer assess whether a conventional seal, a backup-ring arrangement, a spring-energized design, or another configuration should be considered.<\/p>\n<\/section>\n<section class=\"csg-section\" id=\"csg-motion\" data-csg-section><div class=\"csg-section-heading\"><span>SPECIFICATION INPUT 06<\/span><h2>6. Describe Movement, Speed, and Operating Cycles<\/h2><\/div><p>Dynamic seals must accommodate movement while controlling leakage, friction, and wear.<\/p>\n<p>For reciprocating applications, provide:<\/p>\n<ul>\n<li>Stroke length<\/li>\n<li>Linear speed<\/li>\n<li>Cycle frequency<\/li>\n<li>Direction of movement<\/li>\n<li>Expected operating hours<\/li>\n<\/ul>\n<p>For rotary applications, provide:<\/p>\n<ul>\n<li>Shaft speed in RPM<\/li>\n<li>Shaft diameter<\/li>\n<li>Surface speed, if available<\/li>\n<li>Direction of rotation<\/li>\n<li>Continuous or intermittent operation<\/li>\n<\/ul>\n<p>Also identify lubrication conditions, possible dry running, vibration, misalignment, and abrasive particles.<\/p>\n<p>A seal that performs well under slow movement may not provide the same service life under high-speed operation. Likewise, a design suitable for lubricated service may require further evaluation if lubrication is limited.<\/p>\n<p>The more accurately the motion profile is described, the easier it is to evaluate friction, wear, heat generation, and potential design limitations.<\/p>\n<\/section>\n<section class=\"csg-section\" id=\"csg-dimensions\" data-csg-section><div class=\"csg-section-heading\"><span>SPECIFICATION INPUT 07<\/span><h2>7. Supply Accurate Dimensions and the Seal-Groove Drawing<\/h2><\/div><figure class=\"csg-dimension-card\"><div><span>WHAT DEFINES FIT?<\/span><h3>Seal + groove + mating hardware<\/h3><p>Include dimensions, tolerances, clearance, finish and drawing revision\u2014not only a worn sample.<\/p><\/div><div class=\"csg-dimension-rings\" aria-hidden=\"true\"><i><\/i><b>\u00d8 ID \/ \u00d8 OD<\/b><span>SECTION \u00b7 WIDTH \u00b7 DEPTH<\/span><\/div><\/figure><p>Dimensions are essential for custom seal manufacturing, but the seal&#8217;s dimensions alone may not be sufficient.<\/p>\n<p>Whenever possible, provide a dimensioned drawing of the seal and its installation groove.<\/p>\n<p>Important information includes:<\/p>\n<ul>\n<li>Seal inside diameter and outside diameter<\/li>\n<li>Cross-sectional dimensions<\/li>\n<li>Groove width and depth<\/li>\n<li>Shaft or bore diameter<\/li>\n<li>Mating-component dimensions<\/li>\n<li>Dimensional tolerances<\/li>\n<li>Clearance between mating surfaces<\/li>\n<li>Surface finish and hardness requirements, where relevant<\/li>\n<li>Installation direction and available assembly space<\/li>\n<\/ul>\n<p>For complex profiles, a 2D engineering drawing or 3D CAD model can help clarify the geometry.<\/p>\n<p>If you only have an existing seal, provide clear photographs, measured dimensions, and information about its original installation. A worn or deformed seal may no longer represent its original dimensions accurately.<\/p>\n<p>When available, include the original drawing number, part number, and revision level. These details can reduce ambiguity during design review and production.<\/p>\n<\/section>\n<section class=\"csg-section\" id=\"csg-material\" data-csg-section><div class=\"csg-section-heading\"><span>SPECIFICATION INPUT 08<\/span><h2>8. Identify the Preferred Material and Any Compliance Requirements<\/h2><\/div><p>If your engineering team has already specified a material, include the material name, grade, compound designation, hardness, or existing material specification.<\/p>\n<p>Common material families used in industrial sealing include:<\/p>\n<div class=\"csg-table-wrap\" role=\"region\" aria-label=\"Material and Typical selection considerations\" tabindex=\"0\"><table><thead><tr><th scope=\"col\">Material<\/th><th scope=\"col\">Typical selection considerations<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">NBR<\/th><td>Oil resistance and general industrial service<\/td><\/tr><tr><th scope=\"row\">HNBR<\/th><td>Oil-related applications requiring improved heat and aging performance compared with standard NBR<\/td><\/tr><tr><th scope=\"row\">FKM<\/th><td>Heat and chemical resistance in many demanding industrial applications<\/td><\/tr><tr><th scope=\"row\">FFKM<\/th><td>Selected for applications requiring particularly broad chemical resistance and high-temperature capability<\/td><\/tr><tr><th scope=\"row\">PTFE<\/th><td>Low friction and chemical resistance, with design considerations for creep and deformation<\/td><\/tr><tr><th scope=\"row\">PEEK<\/th><td>Mechanical strength, wear resistance, and dimensional stability in demanding applications<\/td><\/tr><tr><th scope=\"row\">EPDM<\/th><td>Weathering, ozone, and selected water-based or chemical applications<\/td><\/tr><\/tbody><\/table><\/div>\n<p>These are general material characteristics, not universal compatibility guarantees. The suitability of any material depends on its grade, compound formulation, geometry, and working conditions.<\/p>\n<p>If the seal is intended for food processing, pharmaceutical equipment, medical applications, or another regulated environment, specify the applicable requirements explicitly.<\/p>\n<p>Depending on the application, you may need material declarations, traceability records, test reports, or other documentation. Confirm which requirements apply before finalizing the design.<\/p>\n<p>If you are unsure which material to select, provide the operating conditions and ask the manufacturer to evaluate suitable options.<\/p>\n<\/section>\n<section class=\"csg-section\" id=\"csg-history\" data-csg-section><div class=\"csg-section-heading\"><span>SPECIFICATION INPUT 09<\/span><h2>9. Share Previous Seal Failures and Existing Samples<\/h2><\/div><aside class=\"csg-callout is-amber\"><span>DIAGNOSE BEFORE REDESIGN<\/span><p>A failed seal is evidence to investigate, not automatic proof that the original design was wrong.<\/p><\/aside><p>If you are replacing a failed seal, explain what happened before requesting a new design.<\/p>\n<p>Useful information includes:<\/p>\n<ul>\n<li>Leakage location<\/li>\n<li>Approximate service life before failure<\/li>\n<li>Cracking, hardening, swelling, or deformation<\/li>\n<li>Wear marks or surface damage<\/li>\n<li>Extrusion or tearing<\/li>\n<li>Changes in operating temperature or pressure<\/li>\n<li>Recent changes to the process medium<\/li>\n<li>Installation or maintenance issues<\/li>\n<\/ul>\n<p>Photographs of the failed component can help identify visible damage patterns. If possible, include photographs of the mating surfaces and the installed seal location.<\/p>\n<p>You can also provide the original sample, product code, drawing, or existing supplier specification.<\/p>\n<p>However, a damaged seal should not automatically be treated as proof that the original design was incorrect. Failure can result from material incompatibility, incorrect dimensions, installation damage, contamination, excessive clearance, or operating conditions beyond the intended design limits.<\/p>\n<p>Reviewing the failure history helps the manufacturer evaluate whether a replacement should retain the original design or consider a modification.<\/p>\n<\/section>\n<section class=\"csg-section\" id=\"csg-quantity\" data-csg-section><div class=\"csg-section-heading\"><span>SPECIFICATION INPUT 10<\/span><h2>10. Confirm Quantity, Inspection, Testing, and Delivery Requirements<\/h2><\/div><p>Before production, clarify the commercial and quality requirements.<\/p>\n<p>Provide:<\/p>\n<ul>\n<li>Prototype or sample quantity<\/li>\n<li>Initial order quantity<\/li>\n<li>Estimated annual demand<\/li>\n<li>Expected repeat-order frequency<\/li>\n<li>Required dimensional inspection<\/li>\n<li>Material certification or test-report requirements<\/li>\n<li>Packaging and labeling specifications<\/li>\n<li>Batch traceability requirements<\/li>\n<li>Required delivery date and destination<\/li>\n<\/ul>\n<p>If the seal will be used in critical equipment, determine whether prototype evaluation or application-specific testing is needed before approving production.<\/p>\n<p>For repeat orders, confirm the drawing revision and material specification so that future orders can be matched to the approved requirements.<\/p>\n<p>Lead time and cost depend on factors such as design complexity, material availability, tooling, inspection requirements, and order quantity. Supplying these details early helps the manufacturer assess the project more accurately.<\/p>\n<\/section>\n<section class=\"csg-section\" id=\"csg-checklist\" data-csg-section><div class=\"csg-section-heading\"><span>MAKE THE REQUEST ACTIONABLE<\/span><h2>A Practical Checklist for Requesting a Custom Industrial Seal<\/h2><\/div><p>Before contacting a manufacturer, use the following checklist to organize your information.<\/p>\n<div class=\"csg-table-wrap\" role=\"region\" aria-label=\"Information and What to provide\" tabindex=\"0\"><table><thead><tr><th scope=\"col\">Information<\/th><th scope=\"col\">What to provide<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">Application<\/th><td>Equipment type and seal location<\/td><\/tr><tr><th scope=\"row\">Sealing function<\/th><td>Static, reciprocating, rotary, or oscillating<\/td><\/tr><tr><th scope=\"row\">Operating medium<\/th><td>Fluid, gas, chemical, concentration, and contaminants<\/td><\/tr><tr><th scope=\"row\">Temperature<\/th><td>Minimum, normal, maximum, and transient temperatures<\/td><\/tr><tr><th scope=\"row\">Pressure<\/th><td>Normal, maximum, vacuum, surges, and pressure direction<\/td><\/tr><tr><th scope=\"row\">Movement<\/th><td>Speed, stroke, RPM, and duty cycle<\/td><\/tr><tr><th scope=\"row\">Dimensions<\/th><td>Seal drawing, groove geometry, tolerances, and mating dimensions<\/td><\/tr><tr><th scope=\"row\">Material<\/th><td>Preferred grade, hardness, and compliance requirements<\/td><\/tr><tr><th scope=\"row\">Failure history<\/th><td>Photographs, symptoms, service life, and previous specifications<\/td><\/tr><tr><th scope=\"row\">Commercial requirements<\/th><td>Quantity, inspection, documentation, packaging, and delivery<\/td><\/tr><\/tbody><\/table><\/div>\n<p>Not every application requires every detail at the beginning. If certain information is unavailable, identify it as unknown rather than guessing. The manufacturer can then clarify which measurements or tests are necessary to proceed.<\/p>\n<div class=\"csg-rfq\" data-csg-rfq>\n    <div class=\"csg-rfq-head\"><div><span>BUILD YOUR REQUEST<\/span><h3>Turn the ten details into an RFQ brief.<\/h3><p>Check the information you have and add notes. Mark missing values as \u201cUnknown\u201d\u2014do not guess.<\/p><\/div><div class=\"csg-score\"><strong data-csg-count>0 \/ 10<\/strong><span>items prepared<\/span><\/div><\/div>\n    <div class=\"csg-rfq-progress\" role=\"progressbar\" aria-label=\"Prepared specification items\" aria-valuemin=\"0\" aria-valuemax=\"10\" aria-valuenow=\"0\" data-csg-meter><span><\/span><\/div>\n    <label class=\"csg-project-label\" for=\"csg-project\">Project \/ part reference <span>(optional)<\/span><input id=\"csg-project\" type=\"text\" maxlength=\"180\" placeholder=\"Part number, drawing revision or project name\" data-csg-project><\/label>\n    <div class=\"csg-rfq-grid\"><div class=\"csg-rfq-item\"><label class=\"csg-ready-label\"><input type=\"checkbox\" data-csg-check=\"application\"><span class=\"csg-check-number\">01<\/span><strong>Application \/ equipment<\/strong><\/label><label class=\"csg-note-label\" for=\"csg-note-application\">Equipment type, industry, seal location and function.<\/label><textarea id=\"csg-note-application\" rows=\"3\" maxlength=\"2500\" placeholder=\"Add details, or write Unknown\" data-csg-note=\"application\" data-csg-label=\"Application \/ equipment\"><\/textarea><a href=\"#csg-application\">Review this requirement <span>\u2197<\/span><\/a><\/div>\n<div class=\"csg-rfq-item\"><label class=\"csg-ready-label\"><input type=\"checkbox\" data-csg-check=\"function\"><span class=\"csg-check-number\">02<\/span><strong>Sealing function<\/strong><\/label><label class=\"csg-note-label\" for=\"csg-note-function\">Static, reciprocating, rotary or oscillating; what must be sealed?<\/label><textarea id=\"csg-note-function\" rows=\"3\" maxlength=\"2500\" placeholder=\"Add details, or write Unknown\" data-csg-note=\"function\" data-csg-label=\"Sealing function\"><\/textarea><a href=\"#csg-function\">Review this requirement <span>\u2197<\/span><\/a><\/div>\n<div class=\"csg-rfq-item\"><label class=\"csg-ready-label\"><input type=\"checkbox\" data-csg-check=\"medium\"><span class=\"csg-check-number\">03<\/span><strong>Operating medium<\/strong><\/label><label class=\"csg-note-label\" for=\"csg-note-medium\">Exact fluids or gases, concentrations, mixtures, cleaning media and contaminants.<\/label><textarea id=\"csg-note-medium\" rows=\"3\" maxlength=\"2500\" placeholder=\"Add details, or write Unknown\" data-csg-note=\"medium\" data-csg-label=\"Operating medium\"><\/textarea><a href=\"#csg-medium\">Review this requirement <span>\u2197<\/span><\/a><\/div>\n<div class=\"csg-rfq-item\"><label class=\"csg-ready-label\"><input type=\"checkbox\" data-csg-check=\"temperature\"><span class=\"csg-check-number\">04<\/span><strong>Temperature range<\/strong><\/label><label class=\"csg-note-label\" for=\"csg-note-temperature\">Minimum, normal, maximum continuous, peaks and exposure duration; include units.<\/label><textarea id=\"csg-note-temperature\" rows=\"3\" maxlength=\"2500\" placeholder=\"Add details, or write Unknown\" data-csg-note=\"temperature\" data-csg-label=\"Temperature range\"><\/textarea><a href=\"#csg-temperature\">Review this requirement <span>\u2197<\/span><\/a><\/div>\n<div class=\"csg-rfq-item\"><label class=\"csg-ready-label\"><input type=\"checkbox\" data-csg-check=\"pressure\"><span class=\"csg-check-number\">05<\/span><strong>Pressure profile<\/strong><\/label><label class=\"csg-note-label\" for=\"csg-note-pressure\">Normal, maximum, differential, surges, vacuum, direction and cycle frequency; include units.<\/label><textarea id=\"csg-note-pressure\" rows=\"3\" maxlength=\"2500\" placeholder=\"Add details, or write Unknown\" data-csg-note=\"pressure\" data-csg-label=\"Pressure profile\"><\/textarea><a href=\"#csg-pressure\">Review this requirement <span>\u2197<\/span><\/a><\/div>\n<div class=\"csg-rfq-item\"><label class=\"csg-ready-label\"><input type=\"checkbox\" data-csg-check=\"motion\"><span class=\"csg-check-number\">06<\/span><strong>Motion and duty cycle<\/strong><\/label><label class=\"csg-note-label\" for=\"csg-note-motion\">Speed, stroke, RPM, operating hours, lubrication, dry running and alignment.<\/label><textarea id=\"csg-note-motion\" rows=\"3\" maxlength=\"2500\" placeholder=\"Add details, or write Unknown\" data-csg-note=\"motion\" data-csg-label=\"Motion and duty cycle\"><\/textarea><a href=\"#csg-motion\">Review this requirement <span>\u2197<\/span><\/a><\/div>\n<div class=\"csg-rfq-item\"><label class=\"csg-ready-label\"><input type=\"checkbox\" data-csg-check=\"dimensions\"><span class=\"csg-check-number\">07<\/span><strong>Dimensions and drawing<\/strong><\/label><label class=\"csg-note-label\" for=\"csg-note-dimensions\">Seal and groove drawing, tolerances, mating surfaces, part number and revision.<\/label><textarea id=\"csg-note-dimensions\" rows=\"3\" maxlength=\"2500\" placeholder=\"Add details, or write Unknown\" data-csg-note=\"dimensions\" data-csg-label=\"Dimensions and drawing\"><\/textarea><a href=\"#csg-dimensions\">Review this requirement <span>\u2197<\/span><\/a><\/div>\n<div class=\"csg-rfq-item\"><label class=\"csg-ready-label\"><input type=\"checkbox\" data-csg-check=\"material\"><span class=\"csg-check-number\">08<\/span><strong>Material and compliance<\/strong><\/label><label class=\"csg-note-label\" for=\"csg-note-material\">Exact grade, compound, hardness, declarations, traceability and required documentation.<\/label><textarea id=\"csg-note-material\" rows=\"3\" maxlength=\"2500\" placeholder=\"Add details, or write Unknown\" data-csg-note=\"material\" data-csg-label=\"Material and compliance\"><\/textarea><a href=\"#csg-material\">Review this requirement <span>\u2197<\/span><\/a><\/div>\n<div class=\"csg-rfq-item\"><label class=\"csg-ready-label\"><input type=\"checkbox\" data-csg-check=\"history\"><span class=\"csg-check-number\">09<\/span><strong>Failure history<\/strong><\/label><label class=\"csg-note-label\" for=\"csg-note-history\">Symptoms, service life, photographs, sample and recent process changes.<\/label><textarea id=\"csg-note-history\" rows=\"3\" maxlength=\"2500\" placeholder=\"Add details, or write Unknown\" data-csg-note=\"history\" data-csg-label=\"Failure history\"><\/textarea><a href=\"#csg-history\">Review this requirement <span>\u2197<\/span><\/a><\/div>\n<div class=\"csg-rfq-item\"><label class=\"csg-ready-label\"><input type=\"checkbox\" data-csg-check=\"quantity\"><span class=\"csg-check-number\">10<\/span><strong>Quantity, quality and delivery<\/strong><\/label><label class=\"csg-note-label\" for=\"csg-note-quantity\">Prototypes, initial\/annual quantities, inspection, packaging, delivery date and destination.<\/label><textarea id=\"csg-note-quantity\" rows=\"3\" maxlength=\"2500\" placeholder=\"Add details, or write Unknown\" data-csg-note=\"quantity\" data-csg-label=\"Quantity, quality and delivery\"><\/textarea><a href=\"#csg-quantity\">Review this requirement <span>\u2197<\/span><\/a><\/div><\/div>\n    <div class=\"csg-rfq-actions\"><button type=\"button\" class=\"csg-button is-blue\" data-csg-copy>Copy RFQ brief <span>\u2197<\/span><\/button><button type=\"button\" class=\"csg-button is-outline\" data-csg-download>Download as TXT <span>\u2193<\/span><\/button><a href=\"https:\/\/walleglobal.com\/contact-us\/\" class=\"csg-tool-contact\">Open WALLE quotation page \u2192<\/a><\/div>\n    <p class=\"csg-rfq-privacy\">This tool does not save or send your entries. Copy or download before leaving the page. The counter tracks preparation, not engineering approval.<\/p>\n    <p class=\"csg-status\" role=\"status\" aria-live=\"polite\" data-csg-status><\/p>\n    <div class=\"csg-copy-fallback\" data-csg-fallback hidden><label for=\"csg-brief-output\">Clipboard access is unavailable. Select and copy this brief:<\/label><textarea id=\"csg-brief-output\" rows=\"12\" readonly data-csg-output><\/textarea><\/div>\n    <noscript><p class=\"csg-noscript\">The article and checklist remain readable. Enable JavaScript to update the counter or copy\/download your brief.<\/p><\/noscript>\n  <\/div><\/section>\n<section class=\"csg-section\" id=\"csg-workflow\" data-csg-section><div class=\"csg-section-heading\"><span>FROM REVIEW TO DELIVERY<\/span><h2>How to Work With a Custom Seal Manufacturer<\/h2><\/div><p>A structured development process generally begins with reviewing the application and operating conditions, followed by drawing and material evaluation.<\/p>\n<p>Depending on the project, the process may include:<\/p>\n<ol>\n<li><strong>Requirement review:<\/strong> Confirm the application, operating conditions, and performance objectives.<\/li>\n<li><strong>Design evaluation:<\/strong> Review dimensions, groove geometry, and the proposed seal configuration.<\/li>\n<li><strong>Material selection:<\/strong> Assess chemical compatibility, temperature, pressure, movement, and other relevant factors.<\/li>\n<li><strong>Prototype evaluation:<\/strong> Manufacture and test samples when required.<\/li>\n<li><strong>Production approval:<\/strong> Confirm the final specification, inspection criteria, and order requirements.<\/li>\n<li><strong>Manufacturing and delivery:<\/strong> Produce the approved parts according to the agreed requirements.<\/li>\n<\/ol>\n<p>The precise process depends on the design and application. For demanding service conditions, testing under representative operating conditions may be necessary before approving the final solution.<\/p>\n<p>At WALLE, custom sealing solutions are available for non-standard dimensions, materials, colors, and structures based on customer drawings or samples.<\/p>\n<p>Explore our <a href=\"https:\/\/walleglobal.com\/product-catalog\/\">Industrial Sealing Product Catalog<\/a> to review available product categories, or contact our team through the <a href=\"https:\/\/walleglobal.com\/contact-us\/\">WALLE quotation page<\/a> to discuss your requirements.<\/p>\n<\/section>\n<section class=\"csg-section\" id=\"csg-faq\" data-csg-section><div class=\"csg-section-heading\"><span>FAQ<\/span><h2>Frequently Asked Questions<\/h2><\/div><div class=\"csg-faq-list\"><details class=\"csg-faq\"><summary>What information is needed to get a quote for a custom industrial seal?<\/summary><div><p>Start with the application, operating medium, temperature, pressure, type of movement, dimensions, and required quantity. A drawing or sample is particularly useful for non-standard seals. Additional information may be needed depending on the design.<\/p>\n<\/div><\/details>\n<details class=\"csg-faq\"><summary>Can I order a custom seal without an engineering drawing?<\/summary><div><p>Yes, a drawing is not always necessary to begin a discussion. You can provide a physical sample, photographs, available measurements, and details about the equipment. The manufacturer can review the information and identify what additional dimensions or drawings are needed.<\/p>\n<\/div><\/details>\n<details class=\"csg-faq\"><summary>How do I choose the right material for a custom seal?<\/summary><div><p>Evaluate chemical compatibility, temperature, pressure, movement, wear, and applicable compliance requirements together. If you do not know the preferred material, provide the operating conditions so the manufacturer can assess suitable material options.<\/p>\n<\/div><\/details>\n<details class=\"csg-faq\"><summary>Can an existing seal be reproduced from a sample?<\/summary><div><p>In many cases, an existing seal can be evaluated for reproduction. However, a sample alone may not reveal its original tolerances, material grade, manufacturing requirements, or intended operating limits. Providing the equipment details and failure history improves the evaluation.<\/p>\n<\/div><\/details>\n<details class=\"csg-faq\"><summary>What file formats can I send when requesting a custom seal?<\/summary><div><p>WALLE&#8217;s online quotation form accepts PDF, DWG, DXF, ZIP, JPG, and PNG files, with a maximum file size of 10 MB. If your files exceed the limit or you have additional technical documents, contact the sales team to discuss an appropriate way to share them.<\/p>\n<\/div><\/details><\/div><\/section>\n<section class=\"csg-contact\" id=\"csg-quote\" data-csg-section><div class=\"csg-contact-copy\"><span>FROM REQUIREMENT TO QUOTATION<\/span><h2>Request a Custom Industrial Seal Quote From WALLE<\/h2><p>Looking for a manufacturer for custom O-rings, PTFE seals, FFKM seals, spring-energized seals, hydraulic seals, or precision-molded rubber components?<\/p>\n<p>Share your drawing or sample along with the application details, operating medium, temperature, pressure, and required quantity.<\/p>\n<p>The WALLE team can review your requirements, discuss suitable sealing materials and designs, and provide a quotation based on your application.<\/p>\n<p><strong><a href=\"https:\/\/walleglobal.com\/contact-us\/\">Contact WALLE for a Custom Seal Quote<\/a><\/strong><\/p>\n<p><strong><a href=\"https:\/\/walleglobal.com\/product-catalog\/\">Explore the WALLE Industrial Sealing Product Catalog<\/a><\/strong><\/p>\n<\/div><aside><span>PREPARE YOUR ATTACHMENT<\/span><h3>Drawing or sample + operating conditions<\/h3><p>Accepted quotation-form files: PDF, DWG, DXF, ZIP, JPG and PNG. Maximum file size: 10 MB.<\/p><a href=\"#csg-checklist\">Review your RFQ checklist \u2191<\/a><\/aside><\/section>\n    <\/article><\/main>\n  <\/div>\n  <button class=\"csg-back-top\" type=\"button\" aria-label=\"Back to top\" data-csg-back>\u2191<\/button>\n<\/div>\n<script>\n\/* WordPress JavaScript: copy all content without adding script tags. 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