Excellent Chemical Resistance Trelleborg Back-up-Ring
|FOB Price:||US $0.1 / Piece|
|Min. Order:||50 Pieces|
|Min. Order||FOB Price|
|50 Pieces||US $0.1/ Piece|
|Production Capacity:||100, 000PCS/Month|
|Payment Terms:||L/C, T/T, Western Union|
- Model NO.: Trelleborg Back-up-ring
- Application: Cylinder
- Standard: Standard, Nonstandard
- Delivery Time: Usual 7 Days After Confirmation of The Sample or a
- Trademark: Trelleborg back up ring
- Specification: per your request
- HS Code: 4016931000
- Material: PTFE
- Performance: Temperature
- Color: Red, White, Clear, etc
- OEM/ODM: Welcome
- Transport Package: Carton
- Origin: Guangdong, China
Back-up Rings have no intended sealing function. Instead, as their name indicates, they are protective and supporting elements made from extrusion-resistant materials which generally have a rectangular cross section. They are installed in a groove together with an elastomeric sealing element preferably with a corresponding O-Ring in static applications. Due to the tight fit of the Back-up Ring in the housing, they prevent extrusion of the pressurised elastomeric sealing element into the sealing gap.
- Use of O-Rings in high pressure applications
- Use of O-Ring materials with a low hardness
- Compensation of radial sealing gaps
- Use for internal and external sealing applications
- Reciprocating and rotating movements possible
- Compensation for large temperature fluctuations
- Static and dynamic applications
Injection moulding machines
- Machine tools
- Agricultural machines
- Valves for hydraulic circuits
Back-up Rings are as standard manufactured from virgin PTFE. In view of the unfavourable cold flow behaviour of virgin PTFE, these Back-up Rings are used only for low to medium loads. For higher load requirements, filled PTFE materials (with glassfibre, bronze, carbon, etc.) have to be used. For sealing against high pressures, Back-up Rings made from specially modified thermoplastic materials are used.
For the series production of larger quantities, injection moulded Back-up Rings can be manufactured, e.g. NBR 90 Shore A, FKM 90 Shore A, or thermoplastic elastomers (TPE) on request.
Dongguan Walle Sealing Technology Development Co., Ltd. is one of China leading manufacturers which specializing in producing Trelleborg Back up Ring products . Our facilities are fitted with advanced imported equipment, complemented by sophisticated quality inspection apparatus. Owe to 20 years of rich experience in production and qualified technical service team, our product quality and appearance have reached the international advanced level.
Certificate: Walle sealing have passed the accreditation of ISO 9001 .
Any question for Trelleborg Back up ring, please do not hesitate to contact me. It is our pleasure to be on service of you!