Product Description:
Back-up rings are the most common anti-extrusion devices in dynamic sealing. They provide simple solutions to safely increase system function by positioning a more robust material adjacent to the extrusion gap, taking the seal's place and providing a barrier against high pressures. Back ups can be used to offset the reduced pressure rating effects of wear rings or to improve seal against pressure spikes, or to ensure seal performance at higher tempertures.
Material Range:
Virgin PTFE, PTFE+bronze, PTFE+carbon, PTFE+glass, PTFE+graphite, POM, etc.
Color Range:
Brown, Green, White, Black, Blue, etc.
Special Service:
This seal can be provided with slash cut or no cut.
| MOQ(PCS) |
10 |
| FOB |
FOB Shenzhen |
| Method of payment |
T/T (bank account, paypal,western union) |
| Delivery time |
5 to 7 working days, 2 days for in stock |
| Supply ability |
5000000Pcs/Month |
| Packaging |
plastic film for inner packaging and cartons for outer packaging |
| Export market |
South Asia, Southest Asia, Europe, South America, North America, Africa, Middle East, Australia
|
How to order from us?
1 Contact DEF's salesman to get a quotation.( by Email, Telephone, Trademessage)
2 Send DEF your asked type and detailed instruction(mateials, size, quantity,color, special requestes etc.)
3 Will send price and other details informations to you,send back Purchaser Order for approval
4 After confirm order and timeline, DEF'll start production procedure once receive payment.
5 If require sample, please inform DEF in advance.
6 5~10 working days for making seals.
7 Quality Checking, DEF can send bulk order photo for approval before packing, if you need.
8 Packing
9 Order release for shipping.
10 Any issue,please contact DEF after receive package. DEF'll invest and consult with you for solution.
Quality and Service are DEF principle.
Audited Supplier 
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