Polytetrafluoroethylene (PTFE- Teflon®, etc.) Back-up Rings
from Jinshiling (Heyuan) Technology Co., Ltd.
Our PTFE backup rings are engineered to withstand a wide range of chemicals, making them an ideal choice for applications involving harsh substances. Whether it ’s oils, gases, or other aggressive media, these rings maintain integrity and performance, offering you peace of mind no matter the... [See More]
- Sealing Element or Lip Material (ASTM Abbreviation): Polytetrafluoroethylene (PTFE)
from Shenzhen Dechengwang Technology Co., Ltd
Back-up rings are also known as anti-extrusion rings since their main function is to prevent o-rings from entering the clearance gaps due to internal pressure. They avoid the seal from experiencing premature failure. Backup rings are not seals themselves, but are used in conjunction with O-rings or... [See More]
- Sealing Element or Lip Material (ASTM Abbreviation): Polyetheretherketon (PEEK) Polytetrafluoroethylene (PTFE)
from Trelleborg Sealing Solutions Germany GmbH
Rectangular cross section. For static and dynamic use. Reciprocating and rotating movements possible. Material: PTFE. Back-up Rings are installed together with O-Rings and Quad-Ring ® Seals to prevent extrusion in applications above 5 MPa / 725 psi. Available in spiral, cut, or uncut designs in... [See More]
- Sealing Element or Lip Material (ASTM Abbreviation): Polytetrafluoroethylene (PTFE)
- Design Units: Metric
- Construction: Contoured Face; Spiral Back-up Ring
- Shaft O.D. or Ring I.D.: 0.3150 to 8.27
from Hi-Tech Seals, Inc.
Back-up rings are plastic or rubber rings used to prevent the O-ring from entering the clearance gap. When high pressures are exerted on the O-ring its soft rubber material can be forced into the clearance gap caused the O-ring to extrude. The hard back-up ring material will keep the O-ring material... [See More]
- Sealing Element or Lip Material (ASTM Abbreviation): Polytetrafluoroethylene (PTFE)
- Design Units: Metric
- Construction: Contoured Face (optional feature); Spiral Back-up Ring (optional feature)
from Greene, Tweed & Co.
Greene, Tweed ’s new 43 back-up ring series has been specifically designed for use in AS5857 gland configurations as anti-extrusion devices in conjunction with O-rings, packings or other elastomeric seal types. A variety of high-performance materials can be provided and specifically targeted... [See More]
- Sealing Element or Lip Material (ASTM Abbreviation): Polytetrafluoroethylene (PTFE)
from T-LON Products, Inc.
T-LON PTFE Back-up Rings are designed to prevent extrusion in rubber O-ring sealing systems. The amount of this extrusion is affected by O-ring hardness, operating temperature, operating pressure and clearance of the mating surface. Increased Pressure: The use of Back-up Rings should be considered... [See More]
- Sealing Element or Lip Material (ASTM Abbreviation): Polytetrafluoroethylene (PTFE); T-LON Variants
- Shaft O.D. or Ring I.D.: 0.9843 to 12.99
- Design Units: Metric
- Ring Thickness: 0.0748
from T-LON Products, Inc.
T-LON PTFE Back-up Rings are designed to prevent extrusion in rubber O-ring sealing systems. The amount of this extrusion is affected by O-ring hardness, operating temperature, operating pressure and clearance of the mating surface. Increased Pressure: The use of Back-up Rings should be considered... [See More]
- Sealing Element or Lip Material (ASTM Abbreviation): Polytetrafluoroethylene (PTFE); T-LON Variants
- Shaft O.D. or Ring I.D.: 0.1181 to 15.75
- Design Units: Metric
- Ring Thickness: 0.1024