Flexible coupling stainless steel 304, DN250ISO-K. L=220mm

Flexible Couplings – Precision Alignment & Vibration Isolation

Our flexible couplings, also known as spring bellows, are designed for applications where alignment correction and vibration isolation are critical. With thin walls and more convolutions per inch, these couplings offer greater flexibility and stroke than standard bellows — making them ideal for dynamic vacuum systems.

🔧 Key Features:

• Superior Flexibility:
  • Up to 20% compression of the convolution length
  • Up to 10% extension
• Durability Tested:
  • Withstands 10,000 load cycles at 20 °C and 1013 mbar standard air pressure
• Not intended for roughing lines, but perfect for precision movement and vibration damping

⚙️ Specifications:

• Material Options:
  • Flange: Stainless Steel 304L
  • Bellows: Stainless Steel 316L
• Length Range: 100 mm to 5000 mm
• Temperature Resistance:
  • 304L: -196 °C to 300 °C
  • 316L: -196 °C to 350 °C
• Pressure Range:
  • Vacuum: Down to 10⁻⁹ mBar
  • Positive Pressure: Up to 1.7 bar