Home> Products> PTFE Seals> Backup Ring

Backup Ring

(Total 6 Products)

  • PTFE fine powder made mechanical static seal

    USD 1 ~ 10

    Brand:HUARI

    Min. Order:20 Piece/Pieces

    Transportation:Ocean,Air,Express

    Packaging:drum, carton, or wooden case

    Supply Ability:1000pcs per day

    Place of Origin:Liaoning

    Productivity:12000kgs raw material per year

    Hydraulic Pump PTFE Guider Backup Ring The primary purpose of the back up ring is to reduce the extrusion gap between metal surfaces of two cylinder components to enable the seal to operate at higher pressures without extruding and being damaged....

  • Engineering plastic polymer backup ring

    USD 1 ~ 10

    Brand:HUARI

    Min. Order:20 Piece/Pieces

    Model No:Filled ptfe backup ring

    Transportation:Ocean,Air,Express

    Packaging:drum, carton, or wooden case

    Supply Ability:1000pcs per day

    Place of Origin:Liaoning

    Productivity:12000kgs raw material per year

    Hydraulic Pump PTFE Guider Backup Ring The primary purpose of the back up ring is to reduce the extrusion gap between metal surfaces of two cylinder components to enable the seal to operate at higher pressures without extruding and being damaged....

  • Hydraulic Pump PTFE Guider Backup Ring

    USD 5 ~ 50

    Brand:HUARI

    Min. Order:20 Piece/Pieces

    Transportation:Ocean,Air,Express

    Packaging:drum, carton, or wooden case

    Supply Ability:1000pcs per day

    Place of Origin:Liaoning

    Productivity:12000kgs raw material per year

    Hydraulic Pump PTFE Guider Backup Ring The primary purpose of the back up ring is to reduce the extrusion gap between metal surfaces of two cylinder components to enable the seal to operate at higher pressures without extruding and being damaged....

  • Pure White Polymer Plastic Backup Ring

    USD 5 ~ 50

    Brand:HUARI

    Min. Order:20 Piece/Pieces

    Transportation:Ocean,Air,Express

    Packaging:drum, carton, or wooden case

    Supply Ability:1000pcs per day

    Place of Origin:Liaoning

    Productivity:12000kgs raw material per year

    PTFE Piston Wear Ring A backup ring is designed to fit between the o-ring and the extrusion gap and prevent the extrusion of the o-ring. Depending upon the direction of pressure in the sealing application, you can either use one backup ring or two...

  • Ptfe Guide Ring Backup Seal

    USD 5 ~ 50

    Brand:HUARI

    Min. Order:20 Piece/Pieces

    Transportation:Ocean,Air,Express

    Packaging:drum, carton, or wooden case

    Supply Ability:1000pcs per day

    Place of Origin:Liaoning

    Productivity:12000kgs raw material per year

    Ptfe Guide Ring Backup Seal Virgin PTFE is a type of super-engineered plastic, a fluororesins also known as Teflon. Colorful Virgin PTFE has excellent heat resistance and the lowest coefficient of friction among plastics. Products with various...

  • 100% Pure PTFE Backup Ring

    USD 5 ~ 50

    Brand:HUARI

    Min. Order:20 Piece/Pieces

    Transportation:Ocean,Air,Express

    Packaging:drum, carton, or wooden case

    Supply Ability:1000pcs per day

    Place of Origin:Liaoning

    Productivity:12000kgs raw material per year

    100% Pure PTFE Backup Ring Backup ring is the sealing ring with rectangle cross section, Flat Gasket is processed from molded PTFE tube by CNC machine. Flat Ring Gasket can be usually filled with carbon fiber, graphite, bronze, fiberglass and other...

Back up Ring has no intended sealing function. 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.

Backup Ring
Backup ring is the sealing ring with rectangle cross section, it is processed from molded PTFE tube by CNC machine. It can be usually filled with carbon fiber, graphite, bronze, fiberglass and other composites materials to make into modified PTFE backup ring with high-temperature, high-pressure resistant and wear resistant performance. The backup ring can prevent the deformation of O ring and to ensure the sealing performance, it is the sealing device that installed on piston O ring end face of hydraulic cylinder.
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