
Sealing Jacket (Primary Seal Ring)
Manufactured from advanced engineering polymers, including:
Virgin PTFE
Filled PTFE (carbon, glass fiber, bronze)
UHMW-PE
PEEK for high-temperature and high-pressure applications
Provides excellent chemical resistance, low friction, and wear resistance
Optimized profiles for static, reciprocating, and rotary sealing applications
C-Shaped Metal Spring (Energizer)
- Made from stainless steel or corrosion-resistant alloy materials
- Supplies continuous and controlled radial or axial preload
- Automatically compensates for wear, thermal expansion, and pressure fluctuations
- Ensures effective sealing even under low-pressure or zero-pressure conditions
The C Series Spring Energized Seal is a high-performance sealing solution consisting of two precisely engineered components, working together to deliver reliable sealing under extreme conditions.

Key Advantages of C Series Spring Energized Seals
Constant and Stable Sealing Force
The C-shaped spring provides a consistent preload throughout the entire service life, ensuring reliable sealing even under fluctuating pressure or dimensional changes.
Extremely Wide Operating Range
Suitable for cryogenic to high-temperature environments
Operates from vacuum conditions to ultra-high pressure
Compatible with aggressive chemicals, gases, fuels, and solvents
Ultra-Low Friction Performance
The PTFE-based sealing jacket offers extremely low friction, eliminating stick-slip effects and improving motion control accuracy.
Extended Service Life
Superior wear resistance and aging stability significantly reduce maintenance frequency and equipment downtime.
Comparison: C Spring Energized Seals vs. Common Rubber Seals
|
Parameter |
C Spring Energized Seal |
Rubber Seal (O-Rings) |
|
Sealing Principle |
Spring-energized preload |
Elastic deformation |
|
Sealing Force Stability |
Constant and controllable |
Gradually decreases |
|
Pressure Capability |
Vacuum to ultra-high pressure |
Limited and pressure-dependent |
|
Chemical Resistance |
Excellent |
Limited |
|
Friction Level |
Very low |
Medium to high |
|
Wear Compensation |
Automatic via spring energizer |
Poor |
|
Service Life |
Long and stable |
Shorter due to aging |
|
Dynamic Performance |
Excellent |
Limited |
|
Customization Capability |
High |
Low |
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C03 Modified PTFE With Carbon Fiber Spring SealWhen virgin PTFE is not sufficient, We can choose for PTFE with a filler to obtain better properties. Carbon can be used in the form of powder or fibers. It improves the compressive strength, making it more resistant to wear, increases...view more
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C04 Radial Seal Coil UHMW-PE Spring SealUHMW-PE has excellent abrasion resistance, good low-temperature impact resistance, self-lubrication, non-toxic, water resistance, chemical resistance, heat resistance is better than ordinary PE. UHMWPE has poor fluidity and extremely...view more
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C07 Pressure Resistance PEEK Spring Energzied SealPeek is a special engineering plastic with excellent properties such as high temperature resistance, self-lubricating, easy processing and high mechanical strength. It is used in aerospace, automobile manufacturing, electrical and...view more
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CS02 Energzied Seal With Carbon Fiber Filled PTFEWhen virgin PTFE is not sufficient, We can choose for PTFE with a filler to obtain better properties. Carbon can be used in the form of powder or fibers. It improves the compressive strength, making it more resistant to wear, increases...view more
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CS02 Piston Energzied Seal With Glass Fiber Filled PTFE100% pure PTFE, white with hardness 55 D, is resistant to almost all chemicals apart from fluorine, molten alkali metals and halogens. It also has very good sliding properties. When virgin PTFE is not sufficient, We can choose for PTFE...view more
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CS01 ELG Slant Spring Energized Seal For Two-way Sealing100% pure PTFE, white with hardness 55 D, is resistant to almost all chemicals apart from fluorine, molten alkali metals and halogens. It also has very good sliding properties.view more
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C09 ELG Slant Spring Energized Seal With Backup Ring100% pure PTFE, white with hardness 55 D, is resistant to almost all chemicals apart from fluorine, molten alkali metals and halogens. It also has very good sliding properties.view more
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C08 Slant 316 Energized PTFE SealReinforced polytetrafluoroethylene, referred to as RPTFE. Although PTFE has excellent comprehensive properties, it has disadvantages such as low mechanical strength, large linear expansion coefficient, poor wear resistance, poor creep...view more
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C06 PTFE With Glass Fiber Flange Spring Seal100% pure PTFE, white with hardness 55 D, is resistant to almost all chemicals apart from fluorine, molten alkali metals and halogens. It also has very good sliding properties. When virgin PTFE is not sufficient, We can choose for PTFE...view more
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C05 UHMW-PE Spring Energzied Seal For Radial SealingUHMW-PE has excellent abrasion resistance, good low-temperature impact resistance, self-lubrication, non-toxic, water resistance, chemical resistance, heat resistance is better than ordinary PE. UHMWPE has poor fluidity and extremely...view more
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C02 Coil SS301 Spring Energzed PTFE Seal100% pure PTFE, white with hardness 55 D, is resistant to almost all chemicals apart from fluorine, molten alkali metals and halogens. It also has very good sliding properties.view more
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C01 Coil SS316 Spring Energzed PTFE SealWhen virgin PTFE is not sufficient, We can choose for PTFE with a filler to obtain better properties. Carbon can be used in the form of powder or fibers. It improves the compressive strength, making it more resistant to wear, increases...view more
Our factory & quipment




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Our address
NO.75 Tian An Road, Jimei District, Xiamen, Fujian, China, 361021
Phone Number
86-592-5171076
contact@kaflon-seal.com

Find professional c series manufacturers and suppliers in China here. Please feel free to buy customized c series at competitive price from our factory. Quality products and competitive price are available.
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