PTFE Bellows

Product Details:

The PTFE Expansion Bellows from Hi Tech Applicator are designed to absorb thermal expansion, vibrations, and mechanical misalignments in aggressive chemical processing systems. Made with high-purity PTFE (Polytetrafluoroethylene), these bellows provide excellent resistance to corrosive chemicals, high temperatures, and dynamic stresses—ensuring long-lasting, maintenance-free performance.

Ideal for applications in the chemical, pharmaceutical, petrochemical, and food processing industries, these bellows are engineered for use with highly aggressive and ultra-pure media where metallic expansion joints fail to meet durability or purity standards.

• Exceptional corrosion resistance to acids, alkalis, solvents, and other aggressive media

• Designed to absorb axial, lateral, and angular movements

• Non-contaminating and suitable for high-purity applications

• Low spring rate allows flexibility with minimal load

• Vibration isolation improves equipment life

• Maintenance-free and long service life

• Compatible with glass, plastic, lined, or metal piping

• Size Range: 25 mm (1") to 600 mm (24")

• Temperature Range: -20°C to +200°C (depending on pressure and media)

• Pressure Rating: Up to 6 Kg/cm²

• Movement Capabilities:

  • Axial: ±10 mm to ±50 mm (depends on size/design)

  • Lateral: ±5 mm to ±25 mm

  • Angular: Up to ±5°

• End Connections:

  • Fixed or Rotating Flanges (ANSI B16.5, DIN, BS, JIS)

  • Stub Ends with Backing Flanges (optional)

  • Customized Ends as per requirement

• Design Standards:

  • ASME / DIN / Customer-Specific Standards

  • Spark Test (15 KV DC) for lining integrity

  • Leak testing per BS EN 12266-1 & 2

• Bellows Material: Pure PTFE (Virgin or Antistatic Grades)

• Flanges:

  • Mild Steel Epoxy Painted

  • Stainless Steel – ASTM A351 Gr. CF8 / CF8M

  • Ductile Iron / Cast Steel

• Reinforcement Options: With or without stainless steel wire / rings

• Lining Thickness: 3 to 5 mm (uniform and spark-tested)

• Virgin PTFE

• Conductive PTFE (for anti-static applications)

• FEP / PFA / PVDF lined bellows available on request

• Acid transfer systems

• Chemical dosing and mixing pipelines

• High-purity water systems (pharma/biotech)

• Solvent recovery and exhaust gas systems

• Glass-lined and PTFE-lined equipment connections

• Flexible connection in vibration-prone areas

Product Details:

• Lining Material: PTFE
• Pressure: Max 4.0MPa
• Thickness: 1-12mm

Additional Information:

• Pay Mode Terms: T/T (Bank Transfer)