Vibration Absorber Expansion Joints
Vibration absorber expansion joints use multi-ply stainless steel bellows to absorb and dampen high-frequency, low-amplitude vibrations, typically from pump operation. Tie rods limit movement and absorb the pressure thrust from the pump, preventing that force from transmitting into the pipe. Suitable for temperatures beyond the limits of rubber expansion joints.
Description
Specifications
- Bellows material: 304, 316, 321 stainless steel
- Balance of material: Carbon steel, stainless steel
- Design pressure: 16 barg
- Design temperature: 300°C
- Size range: DN50 to DN500
Advantages
- Designed for systems where pump vibrations occur
- Standard range made from multi-ply bellows with thin stainless steel layers
- Higher pressure and temperature rating than rubber bellows
- Rubber bushes can be added to tie rods to reduce noise
Applications
- Power stations
- Pulp and paper plants
- Heating and ventilating systems
- Shipbuilding and offshore installations
- Chemical and petrochemical plants
