Basic Info.
Material
Silicone/FKM+ FEP/Fpa
Application
Automobile Industry, Medical, Chemical, Water
Standard
Standard, Nonstandard
Cross-Section(C/S)
1.78mm - 42mm
Certification
ISO, SGS, RoHS, Reach
Temperature
-60~ +350 Degree
Transport Package
PP Bag + Carton
Specification
Standard/OEM/ODM
Product Description
Product Description
Description
FEP is a thermoplastic material with properties similar to PTFE. O-rings which are seamlessly coated with FEP have an elastic core made from FPM or VMQ and are used if very high thermal or chemical loads are present. The high chemical resistance of the coating protects the core against damage by the potentially aggressive medium.
FEP coated O-rings are used - similar to PTFE-rings - where the chemical resistance of the normal elastomer O-ring is no longer sufficient, but where a certain elasticity is needed. The elasticity is ensured by the inner ring and the chemical resistance is achieved by the seamless FEP coating.
Applications
FEP coated O-rings are perfectly suited for the chemical and petrochemical sector, medical technology, food sector, water and waste water technology and similar industrial applications. A typical application for FEP coated O-rings is the sealing of valve stems and as a secondary sealing element for slow switching and rotary movements.
Properties
- Very good chemical resistance against most liquids and chemicals
- Temperature range from approx. -60 °C to 200 °C [depending on inner ring material]
- No contamination of food, pharmaceutical or medical products
- Physiologically harmless, can be sterilised
- Sufficient elastic behaviour
- FEP O-rings can be replaced with standard O-ring seals without limitation
- No changes to the groove dimensions are necessary
- The O-rings are less flexible than elastomer O-rings due to the FEP coating. They can only be stretched minimally and have a lower elasticity or a higher permanent deformation
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, FKM cores
Food Grade - non toxic 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 & FKM core
Rubber O Rings Information |
| Hardness (Shore A) | | |
| |
NBR (Nitrile, Buna) FKM (FPM) EPDM VMQ (Silicone) HNBR FFKM | 60-90 70-90 60-90 10-70 60-90 70-90 | -40ºC - 110ºC -20ºC - 220ºC -45ºC - 150ºC -55ºC - 204ºC -48ºC - 180ºC -18ºC - 326ºC | AS-568 (USA) JIS-B2401 (Japan) DIN-3771 (Germany) BS-1516 (UK) ISO3601 (International) R (France) | |
| | | |
Engine Oil Hydraulic Fluid Chemical Ozone Steam & Hot Water Low Temperature High Temperature | Black Brown Green Red White Blue Color as request | ISO9001 RoHS REACH Food Grade Cert SGS | Automotive Industry Construction Machinery Machine Tool Equipment Water Treatment Chemical Processing Hydraulic Pneumatic Industrial Manufacturing |
Company Profile
FAQ
1. Q: What is your main product range?
A: SWKS is professional in designing, developing and manufacturing rubber products. For example, o rings, oil seals, piston and rod seals, rubber shock absorbers and custom rubber products.
2. Q: What kinds of rubber materials are available?
A: NBR, FKM, VMQ, EPDM, CR, SR, PU... other rubber compounds can be with your request.
3. Q: What shall be provided before a offer?
A: The materials and dimensions are needed before a offer. If the product is nonstandard, the drawing or sample shall be
provided.
4. Q: What's your payment terms and delivery date?
A: T/T, L/C, Western Union, Paypal,etc. Normally, delivery date is 7-25days according to the order.
5. Q: Which shipping method will be used for a delivery?
A: DHL, FedEx, TNT, UPS, EMS ... By seal or by air are also available.
6. Q: How to packing the goods?
A: All goods will be well packed into pp bags and outer cartons. Special packing can be available with customers' request.
Address:
1-206, Bldg 1, No. 1, Haitaihuake Three Road, Tianjin(300384), Tianjin, China
Business Type:
Manufacturer/Factory
Business Range:
Tools & Hardware
Management System Certification:
ISO 9001
Company Introduction:
Tianjin SWKS Technology & Development Co., Ltd is located in Tianjin City, China. We professional in designing, Manufacturing, and selling rubber products&plastic parts for more than twenty years. Our products not only include the rubber/plastic seals with standard dimensions, but also custom molded rubber products. Whatever your goals for your component or product, we have the expertise and equipment to deliver. We strictly follow the needs of each customer: Quality, specification, size and quantity to arrange processing and production. SWKS have three kinds of advantages on rubber products. Firstly, material advantage. We have built long term cooperation with DuPont, Dow Corning, Solvay, JSR company, stable supply of materials are ensured. Secondly, technology advantage. We have professional technology team, our engineers could recommend sizes according to using, draw the drawings according to samples, even help to design it. OEM and ODM are welcome. Thirdly, quality advantage. There are professional QC staffs to control the quality. Every product will be 100% checked before shipping. If the order goods have problem, we will solve it within 24 hours, and we will replace the product for you without any cost. On plastic production line SWKS has ISO9001: 2005, SGS and RoHS certification, trust you will like our quality and service. We are looking forward to get more cooperation.