PTFE Back Up Ring, Packaging Type : White, Black

Ptfe back up rings
ptfe backup ring are used for static and dynamic applications. It's better used for static sealing applications with corresponding o-ring.
The use of ptfe backup ring will help control o-ring extrusion in high pressure applications. Ptfe backup rings are compatible with all hydraulic fluids, since they are virtually chemically inert, and also can be used in applications involving elevated operating temperature conditions. In addition, ptfe backup rings can greatly improve o-ring performance and extend service life, even if extrusion does not present a problem.
We manufacture various different profile of ptfe seals include:
o-rings, back-up ring, guidebearing ring, piston ring. Rotary ring, valve seats, diaphragms, etc.
Material range:
100%virgin ptfe for light and medium load requirements.
ptfe with filler( glassgraphitecarbonbronze)for greater load requirements.
Virgin ptfe 100% ptfe
filled ptfe filler type
inorganic filler glass fiber, graphite, bronze, carbon fiber, mos2
organic filler polyimide, aromatic polyester, polyphenylene sulfide
depending on applications, ptfe can be mixed with fillers to meet the requirements of application in order to provide the optimum sealing properties .
Properties:
excellent resistance to corrosion and chemical products
wide temperature using range(up to 250 degree)
low coefficient of friction
self lubrication
improvement in resistance to wear
good sealing