High Quality PTFE Back up Ring (BAK) From China Factory

• Customization: Available
• Material: Virgin PTFE
• Application: Cylinder
• Model NO.: BAK
• Type: Backup Ring
• Performance: High Pressure
• Shape: O-Ring
• Standard: Standard, Nonstandard
• Color: Coffee, Green, White
• Size: According to Your Needs
• Certificate: ISO9001, SGS
• Style: Mechanical Seal
• Shape (for Gasket): Ring Gasket
• Function: Dust Prevention Sealing
• Transport Package: Carton
• Specification: SGS
• Trademark: DEF
• Origin: Guangdong, China
• HS Code: 8484100000
• Production Capacity: 100000PCS/Month

Product Description

Specifications:
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.

Quality Assurance
DEF Seals manufacture high-quality back-UPS to meet harsh sealing environment. Our seals are one of the best choice of spare parts of Hitachi, Kobelco, Kamastu, Caterpillar.
Please check the catagory for detail.

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(M)	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, Ausrialia