PTFE Washers
Precision manufactured PTFE flat washers, flange gaskets, and flanged thrust shims engineered for low-friction rotary pivots, electrical standoff insulation, and leak-free chemical sealing under bolt torque.
Types & Configurations of PTFE Washers
DIN 125 & ASME B18.22 Standard Washers
Standard metric (M2 to M64) and imperial bolt size flat washers for chemical pipe flanges.
Flanged PTFE Shoulder Washers
Stepped insulating washers preventing electrical contact between steel bolts and aluminum panels.
Ball Valve Stem Thrust Washers
Precision ground glass-filled or carbon-filled PTFE washers absorbing high valve actuator torque.
Sanitary Tri-Clamp Gasket Washers
Precision molded and CNC faced PTFE washers for hygienic food and beverage unions.
Ultra-Thin Anti-Friction Shims (0.1mm)
Micro-thin shims eliminating stick-slip in precision optical cameras and metrology joints.
Key Industrial Applications
Specifications & Technical Details
PTFE Washers can be precision-manufactured in custom dimensions, wall thicknesses, cross-sections, and durometers to match your exact application specifications. Below are typical engineering cross-section drawings and technical parameters for reference.
Typical Dimension Drawings & Blueprint Cross-Sections
Technical Specifications
| Parameter | Specification / Options |
|---|---|
| Inner Diameter (ID) | 1.5mm up to 500mm ID |
| Thickness Spectrum | 0.10mm up to 15.0mm precision thickness |
| Thickness Tolerance | Down to ±0.025mm on CNC turned and lapped washers |
| Compressive Modulus | 550 MPa to 850 MPa (virgin); up to 1,800 MPa (bronze filled) |
| Friction Coefficient | 0.04 to 0.08 (lowest of any solid engineering material) |
| Certifications | Meets FDA 21 CFR 177.1550 and RoHS / REACH environmental directives |
| Operating Temp | -200°C to +260°C |
Material Selection & Properties
We offer specialized compound formulations tailored to chemical media, thermal extremes, static deflection, and dynamic fatigue requirements. The best material depends on your operating environment and required service life.
| Material / Polymer | Key Engineering Properties | Recommended Applications & Considerations |
|---|---|---|
| Virgin PTFE (Teflon™) | Universal chemical inertness (pH 0-14), temp up to +260°C | Pharmaceutical seals, cryogenic valve seats, gaskets |
| 15% / 25% Glass-Filled PTFE | Reduced creep/cold flow under compressive mechanical load | Hydraulic backup rings, cylinder piston wear bands |
| Carbon / Graphite Filled PTFE | Low friction, high thermal conductivity, dry running | Compressor rider rings, dynamic rotary shaft lip seals |
| Bronze-Filled PTFE (40% / 60%) | Maximum compressive strength & thermal dissipation | Heavy hydraulic guide rings, high-pressure piston cups |
| Modified / TFM PTFE | Lower permeation, smoother surface finish, higher fatigue | Semiconductor ultra-pure valves, diaphragm pumps |
Important Engineering Guidance
The above properties are general characteristics. Final material selection depends on your specific application, operating conditions, load requirements, media compatibility, and service temperature. Please contact our polymer engineering team for tailored compounding guidance on PTFE Washers.
Production Batch Gallery
Actual production batch examples of PTFE Washers manufactured for OEM, automotive, railway, and heavy engineering clients. We manufacture standard catalogue sizes as well as bespoke custom geometries from your CAD models or physical samples.
Request an Engineering Quote
Share your required dimensions, polymer grade, or 2D/3D drawings for immediate engineering review and quote.