Table 7-l.Comparison of Physical Properties for Some Hydraulic Fluid Seal Materials
are single turn, bias cut, and usually made of TFE,
molybdenum-disulfide-impregnated nylon, or a
combination of TFE and nylon. Nylon is widely
used for T-seal backup rings because it provides
excellent resistance to extrusion and has low
The special T-ring configuration adds stability
to the seal, eliminating spiraling and rolling.