Confused by all the sealing terms out there? Whether you’re sourcing parts or managing inventory, understanding seal terminology is key.
This glossary breaks down the most common terms, materials, size codes, and standards in industrial sealing. Bookmark it — your sealing cheat sheet starts here.
From O-rings and oil seals to PTFE backups and radial lips, this guide explains it all — clearly, quickly, and from a supplier’s perspective.
Common Seal Types
| মেয়াদ | বিবরণ | Learn More |
|---|---|---|
| ও-রিং | Circular elastomer seal used in static/dynamic applications | O-Ring Basics |
| তেল সীল | Lip seal that retains oil in shafts | Oil Seal Guide |
| Rotary Seal | Designed for rotating shafts and dynamic applications | রোটারি শ্যাফ্ট সিল |
| জলবাহী সীল | High-pressure seal in hydraulic cylinders and pumps | হাইড্রোলিক সিল গাইড |
| Dust/Wiper Seal | Protects from contamination in pneumatic/hydraulic systems | Dust Seal Use |
Seal Material Glossary
| উপাদান | বৈশিষ্ট্য | আদর্শ ব্যবহার |
|---|---|---|
| এনবিআর (নাইট্রাইল) | Oil resistant, cost-effective | General hydraulic & fuel |
| এফকেএম (ভিটন®) | High temperature & chemical resistant | Automotive, aerospace |
| ইপিডিএম | Excellent weather/ozone resistance | Outdoor, brake fluids |
| সিলিকন | Flexible, FDA-grade options | Food, pharma, dry heat |
| পিটিএফই | Chemically inert, extreme temp | Aggressive chemicals, steam |
➡️ See comparisons in our EPDM vs FKM Guide
Seal Size & Identification Terms
| মেয়াদ | Meaning |
|---|---|
| আইডি (অভ্যন্তরীণ ব্যাস) | Inside diameter of the seal ring |
| ওডি (বাইরের ব্যাস) | Outside diameter, often matches housing bore |
| CS (Cross Section) | Thickness of the ring |
| TC / SC / TG4 | Common oil seal types based on lip and case design |
| AS568 সম্পর্কে | Inch O-ring sizing standard |
| DIN 3771 | Metric O-ring sizing standard |
Need help with sizing? Use our Seal Size Cross Reference.
Popular Standards & Certifications
| স্ট্যান্ডার্ড | What It Covers |
|---|---|
| AS568 সম্পর্কে | US inch O-ring sizes |
| DIN 3760 | Oil seal standards |
| ISO 3601 | O-ring tolerances and sizes |
| FDA 21 CFR 177.2600 | Food-grade elastomers |
| RoHS / REACH | Environmental compliance |
| TS16949 / ISO9001 | Quality system certifications for OEMs |
We manufacture seals in compliance with all above standards upon request — custom specs available.
Bulk Sealing Terminology
| মেয়াদ | বিবরণ |
|---|---|
| Bulk rubber seal | Large quantities of generic or customized seals for inventory stocking |
| OEM seal | Seal manufactured according to original equipment specs |
| Custom molded seal | Made from client-provided drawings or samples |
| সিল কিট | Pre-packaged seals by type, size, or application |
| Oring assortment | Mixed-size boxes for maintenance or repair use |
➡️ Explore our ও-রিং অ্যাসোর্টমেন্ট কিট গাইড অথবা Automotive Kits
উপসংহার
Understanding sealing terminology makes you a smarter buyer, engineer, and operator. Use this glossary to eliminate confusion and improve your seal selection confidence.
কর্মের আহ্বান
Need help decoding your seal specs or choosing the right material? Send us your part number, drawing, or photo — we’ll identify and quote fast.
- ইমেইল: [email protected]
- হোয়াটসঅ্যাপ: +86 17622979498
We simplify sealing — from bulk orders to custom solutions.
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