Specialized Items
PTFE Balls
Precision PTFE balls in 6 mm, 10 mm and 16 mm dia as standard and any size on request, mainly used in liquid ring vacuum pumps.
Technical specifications
| Dimensional availability | 6, 10, 16, 25 and 50 mm standard; custom diameters |
|---|---|
| Tolerances | Diameter tolerance to application and approved drawing |
| Available grades | Virgin PTFE, 15% Glass-filled PTFE, 25% Glass-filled PTFE, 25% Carbon-filled PTFE, Bronze-filled PTFE |
| ASTM test references | ASTM D4894, ASTM D4745 |
Final dimensions, tolerances and material grade are confirmed against your drawing and service conditions.
Applications & selection
Typical uses
- Liquid ring vacuum pumps
- Non-return valves
- Dosing systems
Industries: Chemical, Pharmaceutical.
Selecting the right construction
Confirm diameter tolerance, seat geometry and operating medium. Specify whether the ball is intended for check-valve sealing or another pump function.
Chemical resistance depends on the polymer, fillers, inserts and process conditions. Confirm the exact medium and concentration; general PTFE properties do not establish a complete assembly's service rating.
Interactive product model
Buyer questions
Where are ptfe balls used?
Liquid ring vacuum pumps, Non-return valves, Dosing systems. Typical sectors include Chemical, Pharmaceutical; suitability depends on the actual service conditions.
What sizes can I request for ptfe balls?
6, 10, 16, 25 and 50 mm standard; custom diameters. Final dimensions and tolerances are agreed during quotation.
What should I specify when ordering ptfe balls?
Confirm diameter tolerance, seat geometry and operating medium. Specify whether the ball is intended for check-valve sealing or another pump function.
How is material suitability confirmed for specialized items?
Submit the exact medium, concentration, temperature, pressure and mechanical duty. Grade availability and compatibility are confirmed for the specific construction; an ASTM reference is not a product certification.
Selecting a filled grade? Read our PTFE vs Teflon engineering guide.
Related products
Request a quotation
Include quantity, dimensions or a drawing, required material and the operating medium. Add concentration, temperature, pressure and motion or shaft speed where relevant. Final grade, inspection requirements and service limits are confirmed during quotation.
Request Quote for PTFE Balls