PTFE bellows and compensators

What Are PTFE Bellows? PTFE bellows are flexible, accordion-like structures made from Polytetrafluoroethylene, a synthetic fluoropolymer known for its exceptional properties. These bellows are designed to provide a combination of flexibility and chemical resistance while maintaining their structural integrity.

PTFE bellows or PTFE expansion joint and PTFE compensators combine the high corrosion resistance of PTFE and its fantastic flexion capability.

Based on these two properties of PTFE, HONY's products are suitable for use with all chemical products and compensate for repeated thermal expansion in pipelines. They are also widely used to protect equipment against vibration and piping loads.

PTFE bellows are flexible, accordion-like structures made from Polytetrafluoroethylene, a synthetic fluoropolymer known for its exceptional properties. These bellows are designed to provide a combination of flexibility and chemical resistance while maintaining their structural integrity. PTFE bellows are well known for their versatile applications, and that’s why they are the top choice for industries where precision, flexibility, and corrosion resistance are essential.

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

Bellow for solenoid valve

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

Bellow for filling valve

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

Multifunctional bellow

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

Two-component bellow

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

Fold Types

Pointed, non-cut folds

For maximum expansion and low pressures up to 3 bar.

Round, Machined Folds

For improved cleaning and maximum reverse bending strength. Low to medium pressures up to 6 bar.

Solid, machined folds

For high pressures above 6 bar. Optimal with rectangular support on the rod or in the cylinder bore.