FFKM O rings, also known as FFPM O rings, are premium sealing solutions manufactured from advanced perfluoropolyether-based elastomer materials. They combine the chemical resistance of PTFE with the elasticity of rubber, delivering reliable sealing performance in the most demanding environments.
Designed for extreme operating conditions, FFKM O-Rings maintain excellent sealing integrity under high temperatures, aggressive chemicals, plasma exposure, and high-vacuum environments. Their homogeneous structure eliminates issues such as porosity, cracking, or pinholes, significantly improving sealing reliability and service life.
Material Properties & Performance
Temperature Resistance
Continuous operating temperature: -40°C to +327°C
Maximum resistance up to 350°C for specific grades
Maintains elasticity under intermittent high-temperature exposure
Chemical Resistance
Resistant to over 1,600 chemicals
Excellent resistance to:
Strong acids and strong alkalis
Organic solvents (ketones, esters, ethers, alcohols)
Amines, aldehydes, oxidizers
Corrosive gases and high-temperature steam
Near-universal chemical compatibility
Mechanical & Physical Performance
Low compression set at elevated temperatures
Excellent wear resistance for dynamic sealing
Low outgassing for high-vacuum and cleanroom environments
Superior plasma resistance for semiconductor processes
O-Ring Size & Cross-Section Diagram
ID: inner diameter
OD: outer dimeter
CS: cross section
Applications
FFKM / FFPM O rings are widely used in critical sealing points of:
Chemical & Petrochemical Industry
Pumps, valves, reactors, mixers, compressors, pipelinesOil & Gas Exploration & Processing
Downhole tools, refining equipment, high-pressure sealingSemiconductor & Optoelectronics Manufacturing
CVD, PVD, etching processes, plasma chambers, high-vacuum systemsPharmaceutical & Food Processing
Sterile production equipment, high-temperature steam sealingAerospace & Aviation
Fuel systems, high-temperature and aggressive media sealingAutomotive & Medical Devices
Precision components requiring chemical purity and durabilityInstrumentation & Control Systems
Sensors, controllers, quick-connect fittings, dosing equipment
FFKM Material Limitations
- Limited low-temperature flexibility compared to other elastomers
- Higher raw material cost
- Complex manufacturing process
QZSEALS supplies high-quality FFKM O rings in a wide range of sizes and hardness grades. We offer standard and custom-engineered solutions to meet specific temperature, chemical, and application requirements.
Contact us today to discuss your sealing challenges and receive expert support for extreme-environment applications.
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