Encapsulated O Rings

FEP | PFA Encapsulated O-Rings with silicone | FKM

Encapsulated O-ring

Encapsulated O-ring with rubber O-ring as the inner core and FEP / PFA tube as the outer layer. FEP / PFA encapsulated o rings has the characteristics of heat resistance, cold resistance, oil resistance, wear resistance, climate aging resistance and chemical medium corrosion resistance. It can be used in various dynamic and static sealing occasions and can replace some traditional sealing rubber O-rings and expensive perfluoroether O-rings.

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Descriptions

CONSTRUCTION OF ENCAPSULATED O RINGS

 

FEP / PFA tube as the outer layer with silicone or FKM inner core as below, and size could be standardard size (AS568,JIS2401,ISO3601/1)or customized size are available .

 

 

FEP ENCAPSULATED FKM O-RINGS

 

 

Advantage:

l  Excellent chemical resistance and corrosion resistance

l  Low friction coefficient

l  Low compression deformation

l  Temperature range - 75 ° f to 400 ° f (- 60 ° C - 205 ° C)

l  Unlimited specifications

l  FDA compliant

 

FEP Material

l  FEP (propylene fluoride)

l  Upper temperature limit: 400 ° f (204 ° C)

l  Excellent chemical and corrosion resistance

l  Not easy to absorb water

l  Excellent elasticity

l  Smooth / self lubricating surface

l  FDA compliant

 

 

FKM Material:

l  Temperature range: - 15 ° f to 400 ° f

l  Low compression deformation at high temperature

l  Good ozone resistance, weather resistance, aging resistance and high heat resistance

l  It can be used in a wide range of oils or solvents, such as fat, aromatic or halogenated hydrocarbon and vegetable oil

 

 

FEP Encapsulated silicone o rings

 

 

Advantage:

l  Excellent chemical resistance and corrosion resistance

l  Low friction coefficient

l  Low compression deformation

l  Temperature range - 75 ° f to 400 ° f (- 60 ° C - 205 ° C)

l  Unlimited specifications

l  FDA compliant

 

 

FEP Material

l  FEP (propylene fluoride)

l  Upper temperature limit: 400 ° f (204 ° C)

l  Excellent chemical and corrosion resistance

l  Not easy to absorb water

l  Excellent elasticity

l  Smooth / self lubricating surface

l  FDA compliant

 

 

Silicone Material:

l  Temperature range: - 67 ° f to 500 ° f (- 55 ° C to 260 ° C)

l  Low compression deformation

l  Good heat resistance

l  Good low temperature resistance

l  Moderate solvent resistance

l  Ozone aging resistance and weather resistance

 

 

PFA encapsulated o rings

 

Compared with FEP material, PFA material is more suitable for use in the environment of strong acid, strong alkali, high temperature and harsh working conditions. The sealing effect, service life and performance in terms of high temperature and corrosion resistance are much higher than those of ordinary FEP material

 

Material and Working temperature

 

Teflon FEP (perfluoroethylene propylene): - 60 ℃ to 205 ℃, which can be used for a short time at 260 ℃

Teflon PFA (soluble polytetrafluoroethylene): - 60 ° C to 260 ° C, which can be used for a short time at 300 ° C

FKM- E-60C grade

Silicon- ZZR 765B grade

 

 

Main advantages of Encapsulated ring

l  Outstanding chemical resistance, applicable to almost all chemical media (strong oxidizing and reducing solvents)

l  Excellent corrosion resistance (strong acid and alkali solvent)

l  Wide temperature range (- 60 ° C to 260 ° C)

l  Good compression resistance (greater than 30%)

l  Anti-friction (small friction coefficient, 0.1-0.2)

l  Good swelling resistance (less than 0.1%)

l  High pressure resistance (up to 60MPa)

l  Excellent sealing durability and long service life (increase service life by 500%)

FAQs

We are making our greatest efforts to offer you the quality rubber seals and plastic parts products at good price. We’d like to cooperate with you to expand our business in your markets.If in doubt, please see the following FAQs

Q: Are you a trading company or manufacturer ?

Topseals is professional rubber seals and plastic parts manufacturer and supplier, and we are focusing on providing you quality custom rubber seals, custom ptfe spare parts, nylon spare parts, hydraulic seals and hardware metal fittings etc. and focusing on solving the sealing issue and meet customer's needs based on benifit of our customer.

Q: what do you need for a free quote ?

For standard item, you need provide us your specification type and quantity for offer. For custom items, you need provide us your drawing with size details or a sample and quanityt for offer.

Q: what is your leadtime normally ?

Depends on what kind of item do you need. Normally, the leadtime will be 1 week or so for stock item which could be AS568 size o rings, bonded washers with standard size. and 2-3 weeks for custom item to make mould and sample, 3-4 weeks for masss production.

Q: what is your MOQ ?

The min amount will be USD30-50 per item for standard stock item. It will depends on what kind of item do you need for custom size.

Q: How about your payment terms ? How do I pay you ?

Payment terms could be T/T, L/C etc. And you also could pay via your visa, creditcard, mastercard etc which depends on you.

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