PTFE Bellows

Customized Design and Performance

PTFE bellows are used, for example, as compensating elements between engineered parts. By specifically using different fold geometries, any combination of properties can be achieved as required—for example, high flexibility or compressive strength.

The outstanding material properties of Polytetraflon®-PTFE allow bellows to be used increasingly in the medical and food sectors, as well as in general industry.

Essential Advantages:

Almost universal chemical resistance
FDA conformity for food and pharmaceutical products
Highly suitable for sterilization
Antiadhesive behavior
Large temperature range of –60°C to +200°C
Cost-effective series production from semifinished product to final product
High reverse bending strength
Good dimensional stability
Low tooling costs
Freedom of design

Application Examples:

As compensation for expansion in pipe systems
For shielding sterile areas
Filling lines
Aseptic valves
Solenoid valves
Metering devices
Pumps and valves, coating technology, steel mills, fitting industry

PTFE Bellow Types

Bellows for solenoid valves

For use in medical engineering. High flexibility and frequency. Physiologically harmless. Resistant to aggressive cleaning agents.

Bellows for Filling Valves

Hermetic separation of the medium from the actuation mechanism. The tip is the sealing cone of the valve.

Multifunctional Bellows

Separation of two areas with moving parts. Integration of sealing and guiding elements. Connections can be designed according to customer specifications.

Two-component bellows

To increase wear resistance and avoid deformation. Material combination enables integration of connecting threads. Can be used in the food and chemical industry.