O-Ring 1344mm x 5.7mm FEP Encapsulated EPDM Black -40°C to +120°C FDA USP Class VI 3-A

FEP Encapsulated EPDM (Ethylene Propylene Diene Monomer) is a synthetic rubber material known for its exceptional resistance to high temperatures, oils, fuels, and a wide range of chemicals. FEP encapsulation combines the excellent sealing properties and durability of EPDM with the chemical inertness and high-temperature resistance of FEP (Fluorinated Ethylene Propylene). This unique combination offers superior sealing capabilities because the elastomer core assists with the slow recovery of the FEP jacket.

Dimensions:

1344mm ID x 5.7mm CS
ID Tolerance: ±8.54mm
CS Tolerance: ±0.13mm

Material Properties:

Hardness:
Colour: Black
Temperature Range: -40°C to +120°C

Approvals:

FDA 
USP Class VI 
3-A

Features:

3-A 
FDA

Key Benefits of FEP Encapsulated EPDM O-Rings:

Chemical Resistance
High Temperature Resistance
Excellent Flexibility and Resilience
Low Friction
Non-Toxic and FDA Compliant
Durability and Long Service Life
UV and Ozone Resistance

Chemical Resistance:

Excellent resistance to oils, fuels, and a variety of hydrocarbons.
Strong resistance to acids, alkalis, and many industrial chemicals.
Provides superior sealing performance in applications involving lubricants and automotive fluids.

Not Compatible With:

Molten alkali metals: Sodium, potassium, and lithium in their molten state can react with FEP.
Fluorine: Elemental fluorine and fluorine-based compounds like chlorine trifluoride are highly reactive and can attack FEP.
Strong oxidizing agents: While FEP is generally resistant to most oxidizing agents, extremely strong oxidizing agents like concentrated hydrogen peroxide (90%) can degrade it over time, especially at elevated temperatures.

Key Applications:

Chemical Processing
Pharmaceutical and Food Processing
Oil and Gas Industry
Automotive Industry
Semiconductor Manufacturing
Water and Wastewater Treatment
Marine Applications