Plastic Balls for Valves, Instruments and Precision Mechanisms
REDHILL supplies plastic balls in PA, POM, PTFE, UHMW-PE, PMMA, PVC and PUR, with PEEK on request. These materials offer low weight and a choice of stiffness, friction and chemical resistance. Therefore, select the polymer to suit the load, fluid and working temperature.
Applications of Plastic Balls
Valves and Dosing Systems
Plastic balls serve as check elements in pumps, dispensers and dosing devices. For example, PTFE suits many duties involving harsh chemicals. However, fluid concentration and temperature affect material choice.
Instruments and Flow Indicators
Clear or colored balls provide visual contrast in flow indicators and meters. In addition, PMMA offers transparency for suitable viewing applications.
Light-Duty Bearings and Guides
Low-friction plastics suit lightly loaded bearings and guides. However, dry running depends on the polymer, load, speed and contact surface.
Food and Medical Equipment
Selected grades suit food processing and medical devices. Therefore, specify any food-contact, cleaning or sterilization requirements with your inquiry.
Material Options
- POM (Acetal): Stiffness and wear resistance for valves, guides and moving parts.
- PTFE: Low friction and broad chemical resistance for fluid handling.
- UHMW-PE: Low weight and resistance to wear and abrasion.
- PUR (Polyurethane): Elasticity and wear resistance for flexible contact elements.
In addition, unfilled grades can provide electrical insulation in instruments and electronic devices. Also, account for heat and moisture when setting tight tolerances.
Available Sizes and Precision Options
- Precision Classes: GI, GII and GIII, subject to the agreed tolerance specification.
- Diameter Range: 1/16 in–4 in, approximately 1.59 mm–101.6 mm.
Finally, send us your material, color, diameter, tolerance and quantity. Include the fluid, temperature and load so we can confirm suitable options and lead time.
