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Machined PTFE Wear Rings for Pistons (PDW)
Brand: Parker HannifinPDW-Piston Profile, Machined PTFE Wear Rings are available from Parker in a variety of PTFE blends and provide excellent low-friction and high temperature performance in pneumatics and light-duty hydraulics.
PTFE compounds 0401, 0307, and others have outstanding chemical compatibility with a wide range of fluids.
Polyacetal, nylons, molybdenum disulfide, and many different PTFE filler combinations are also available for specialized applications.
Composite, fabric-reinforced resins are also available to accommodate sideloads far more severe than glass-loaded nylon compounds can withstand.
Composite resins also resist moisture swell in water-glycol emulsions and other water-based fluids.
Part numbers are shown for standard sizes and hardware dimensions and may be produced in virtually any width from 0.125 to 2.000, and larger, based upon bore diameter.
The final four “XXXX” characters in the part number reflect wear ring width based upon desired size.
Specifications
Brand
Applications
- High Temperature Polyester-based Fabric-Reinforced Resin Filled with MoS2 for Low Friction, N
- High Temperature Vinyl-ester Based Fabric-Reinforced Resin Filled with PTFE. Internally Lubricated for Dry Running.
- Various, Including Those Requiring:
Color
- Yellow, Gray, Pink, Black, Bronze
Configuration Type
- Angle Cut Part Numbers Shown. Butt Cut & Step Cut Available. See Support Document for Part Numbering.
Fluid Compatibility
- Oils, Water, Ultra Broad Range
Groove Width
- Calculated to Equal Wear Ring Width +0.010”
Maximum Working Temperature (°F)
- 575° F
Media
- Multiple
Minimum Working Temperature (°F)
- -250° F
Polymer Family
- CTR (Composite Thermoset Resin), PTFE (Polytetrafluoroethylene)
Radial Cross Section
- 0.062, 0.093, 0,125
Thermal Application (°F)
- Low Temperature (< -30° F), Expanded Low & High Temperature (< -30° F, > 250° F)