PTFE O Rings
The UK’s largest independent stockist and distributor of PTFE O Rings
M Barnwell Services range of PTFE O Rings are an essential component for applications involving friction, temperature and chemicals. Standard sizes are available from stock and special / custom cut sizes are obtainable with industry-leading lead times.
For over 45 years we have supplied OEM’s, end-users, and Aftermarket suppliers with PTFE O Rings which are proven to help resist corrosion, extend shelf-life and function in a wide range of temperatures. Together with our manufacturing partners we can also provide full batch traceability throughout the manufacturing process and issue any conformance/certification when available.
For more information, please contact our team of seal experts.
For some industrial applications, PTFE (Polytetrafluoroethylene) is the go-to sealing solution. These include:
- Food Processing (FDA Seals), also compliant with European Regulations EC1935/2004 & EC2023/2006
- Hydraulic and Pneumatic Systems
- Engineering and Manufacturing Process
- Chemical Processing
PTFE provides outstanding weathering and ozone resistance which are ideal for static radial applications when sealing fluids and a variety of dynamic applications. To find out the difference between Teflon™ and PTFE as well as understand the main characteristics of PTFE as a material visit the PTFE overview page.
In addition to PTFE O Rings M Barnwell Services also provide a full range of other popular PTFE sealing products. These include:
- PTFE Cord
- PTFE Shaft Seals / Garlock PS Seal® Seals
- PTFE Hydraulic and Pneumatic Seals
- PTFE Sheet and Tubing
- PTFE Back-Up Rings
- PTFE Washers
- PTFE Gaskets
- PTFE Gland Packing / Valve Stem Packing / Compression Packing
- PTFE Joint Sealant Tape
If you would like more information about our range of PTFE Seals, contact a member of the team.
O Rings - No limitation to dimensions with over 10,000 different sizes available from stock
Between -185°C and +250°C (intermittent/compound-specific between -200°C and +260°C)
Melting point at approximately +327°C
O Rings - British Imperial (BS1806) and Metric (BS4518). European Metric (ISO 3601), including German (DIN 3771), Swedish (SMS 1586/1588) and French (NFT 47 501). American (SAE, AMS, AS568) and Japanese Metric (JISB 2401).
General O Ring- WRC, WRAS, FDA, EC1935/2004 & EC2023/2006, DVGW, KTW, BGVV, KIWA, USP Class VI, NSF, ACS, EU2002/72, EN681-1, EN549, 3A Sanitary, NORSOK and EN682