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O-Ring Seal
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Rubber · Rubber Stoppers & Seals

O-Ring Seal

NBR/VMQ/FKM/EPDM · ID 5~500mm

High-quality O-ring seals available in NBR, VMQ, FKM, and EPDM. Suitable for glassware joints and tubing connections with reliable sealing performance.

5 – 500 mmID
1.8 – 8 mmCS
8.6 – 516 mmOD

Specifications are subject to confirmation with your enquiry.

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NBR / VMQ / FKM / EPDM ID 5~500mm CS 1.8~8mm

📐 Features:
NBR/VMQ/FKM/EPDM · ID 5~500mm · CS 1.8~8mm · Reliable Sealing · Chemical Resistant

  • Material — NBR / VMQ / FKM / EPDM
  • Inner Diameter — 5~500mm
  • Cross Section — 1.8~8mm
  • Hardness — 40~90 Shore A
We will follow up on your inquiry as soon as possible. Custom sizes supported Samples available
Specifications

Specifications

Request custom specs
ID (mm)CS (mm)OD (mm)
51.88.6
61.89.6
82.012.0
102.014.0
122.517.0
142.519.0
162.521.0
183.024.0
203.026.0
223.028.0
253.532.0
283.535.0
303.537.0
354.043.0
404.048.0
454.053.0
505.060.0
605.070.0
705.080.0
806.092.0
906.0102.0
1006.0112.0
1206.0132.0
1507.0164.0
2008.0216.0
3008.0316.0
4008.0416.0
5008.0516.0
Values are typical, may vary by material and batch.
📌 Customization:
• Material options: NBR / VMQ / FKM / EPDM
• Hardness: 40~90 Shore A
• Custom ID and CS available

Product Description

Overview

O-ring seals are among the most commonly used sealing components in laboratories. Available in NBR (standard), VMQ, FKM, and EPDM materials.

Offering ID 5~500mm and CS 1.8~8mm in a wide range of sizes for glassware joints and tubing connections.

🔬 Key Advantages:
Multi-Material — Different temperature and chemical resistance options
Wide Size Range — ID 5~500mm
Reliable Sealing — Excellent elasticity and compression set resistance
Easy Installation — Standard O-ring groove design

Applications

Glassware Joints

Standard ground joint sealing

Tubing Connections

Various tubing connector seals

Equipment Sealing

Instrument seal grooves

Vial Sealing

Sample vial cap seals

Selection Guide

MaterialTemperature RangeFeaturesApplications
NBR-30~120℃Oil resistant, wear resistantOily media, general sealing
VMQ-60~250℃Wide temperature range, non-toxicFood grade, medical
FKM-20~250℃Acid/alkali resistant, high tempHarsh chemical environments
EPDM-40~150℃Weather resistant, aging resistantOutdoor, long-term use

💡 Tip: Choose NBR for general lab sealing, VMQ for high temperature or food-grade applications, and FKM for harsh chemical environments.

Operation & Maintenance

Instructions

Installation

  1. Inspect the O-ring for any surface defects
  2. Clean the installation groove thoroughly
  3. Apply a thin layer of compatible lubricant
  4. Gently stretch and position the O-ring into the groove
  5. Ensure no twisting or pinching

Care & Notes

Show care & notes

⚠️ Safety Notes

  • Check chemical compatibility with the media
  • Replace if hardening, cracking, or deformation occurs
Do not
  • Avoid over-stretching which may cause deformation

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O-Ring SealID 5 – 500 mm Get a Quote