PTFE / FEP Encapsulated Silicone O Rings

• Customization: Available
• Material: FEP , PTFE
• Application: Cylinder
• Model NO.: PTFE / FEP encapsulated silicone o rings
• Type: Shaft Seal
• Performance: High Pressure
• Shape: O-Ring
• Standard: Standard, Nonstandard
• Color: Red, Black, White, Clear, etc
• Delivery Time: Usual 7 Days After Confirmation of The Sample or a
• OEM/ODM: Welcome
• Certificated: ISO 9001:2008
• Transport Package: Carton
• Specification: per your request
• Trademark: Walle FEP encapsulated o ring
• Origin: Guangdong, China
• HS Code: 4016931000
• Production Capacity: 100, 000PCS/Month

Product Description

FEP encapsulated silicone o rings
 
WALLE SEALING silicone, Viton or EPDM O-Rings encapsulated with FEP or PFA are designed to address the growing problem of sealing in the most hostile chemical and temperature environments. WALLE SEALING combines the best qualities of two materials, FEP or PFA on the outside with its chemical inertness and an elastomer on the inside for resilience. This unique combination forms a highly effective, long lasting seal for the most demanding applications.

WALLE SEALING O-Rings are available in over 60 standard cross-section sizes from .063" (1.60mm) to 1-1/4" (31.75mm). Standard WALLE SEALING O-Rings are comprised of FEP over silicone, Viton, or EPDM, and can be used in temperatures from -75° to +400°F (-60° to +205°C) depending upon the choice of elastomer core.

For high temperature applications to 500°F (260°C), WALLE SEALING is made with PFA over silicone. PFA has higher mechanical strength than FEP or TFE at elevated temperatures and has excellent crack and stress resistance.

Encapsulated O-Rings are primarily used as a static seal (axial or radial).
 
Standard WALLE SEALING O-Rings in round or square cross-sections are manufactured in sizes to AS 568A industry standards. Non-standard sizes are also available for custom designs, along with a full range of metric (ISO) sizes.

FEP-encapsulated O-Rings (Fluorinated Ethylene Propylene):

Outstanding chemical and corrosion resistance
Low coefficient of friction
Resilience with choice of elastomeric cores
Low compression set
Temperature range: -75°F to 400°F (-60°C to 205°C)
Unlimited sizes (No tooling charges)
Solid & hollow silicone, Viton cores
FDA compliant materials available
USP Class VI approved materials available
PFA-encapsulated O-Rings (Perfluoroalkoxy). Same as FEP above but with these added benefits:
High temperature applications to 500°F (260°C)
Higher mechanical strength
Better flex-life
Low vapor permeation
Excellent stress and crack resistance
Longer wearability
Solid silicone & Viton core
Square Cross-Section Ring Seals. Same as FEP above plus:
Retrofits into standard O-Ring groove
Larger sealing surface
Less squeeze required for sealing
Effects more positive seal
Rectangular cross-sections also available
Solid silicone & Viton core
 
Did you know that walle sealing solutions also offers?
FEP or PFA encapsulated straight lengths in Silicone,
Viton, or EPDM
The straight lengths can be supplied with "open ends" or "closed ends" providing total encapsulation of the elastomer.
 
What else Walle also has the ability to supply ?
NON-ENCAPSULATED O-Rings
No tooling charges
Quick turnaround
Non-standard sizes
Large cross sections
Large diameters
Choice of elastomers
Platinum cured silicone - USP Class VI approved (white or red)
Silicone - FDA compliant (white or red)
EPDM - FDA compliant and USP Class VI approved
 

Temperature
FKM core with FEP cover	from -20 °C to +204 °C
Silicone core with FEP cover:	from -60 °C to +204 °C
FKM core with PFA cover:	from -20 °C to +204 °C
Silicone core with PFA cover:	from -60 °C to +260 °C
Hollow silicone core with FEP	from -60 °C to +204 °C
Hollow silicone core with PFA	from -60 °C to +260 °C

Now our company is specialize in producing seals of these materials: Viton A, Viton B, Viton F, Viton GF, GLT, GFLT, ETP, Aflas, ACM, AEM, VMQ.

Besides, we also product below item, such as PTFE Rubber Diaphragm, clamp seals, P seals, H seals, Casing Tubing Hanger Packers, FS Casing & Tubing Seal, Springsele, Teesele, Valve Rod Seal, Metal End Cap Seal, and so on.

We have the highest quality and lowest costs in the industry delivered on time.




Any questions for FEP encapsulated o ring, please do not hesitate to contact me. It is our pleasure to be on service of you!