Universal Stainless Steel Metal Double Bellows Expansion Joint Compensator
DN100-DN3200
The Universal Stainless Steel Metal Double Bellows Expansion Joint Compensator is a highly engineered piping component designed to absorb complex movements in industrial pipeline systems. Featuring a dual-bellows configuration separated by a central spool pipe, this compensator delivers superior flexibility and movement absorption capabilities compared to single-bellows designs. Its universal configuration makes it particularly effective for accommodating lateral deflections, axial movements, and angular rotations in demanding piping layouts.
Delivery
FOB
minimum order
1 piece
Supply Ability
100piece / Month
Country of Origin
CHINA
Stock Time
30Day
Quantity:
US $1.00 - US $10000.00 / piece
Design and Construction
This compensator consists of two stainless steel bellows elements connected by an intermediate pipe section, creating a flexible unit capable of handling large displacements in multiple directions. The double-bellows arrangement allows for significantly greater lateral movement absorption while maintaining structural integrity under pressure and thermal stress.
This compensator consists of two stainless steel bellows elements connected by an intermediate pipe section, creating a flexible unit capable of handling large displacements in multiple directions. The double-bellows arrangement allows for significantly greater lateral movement absorption while maintaining structural integrity under pressure and thermal stress.
The bellows are precision-engineered using thin-walled stainless steel construction, providing exceptional elasticity, high fatigue life, and robust resistance to corrosion and high temperatures. The product is available with various end connection options, including weld ends, fixed flanges, or loose flanges, to suit diverse installation requirements.
Key Features
Superior Movement Compensation – The double-bellows design enables absorption of large lateral deflections, axial displacements, and limited angular movements, making it ideal for complex piping systems where multiple directional movements occur simultaneously.
Superior Movement Compensation – The double-bellows design enables absorption of large lateral deflections, axial displacements, and limited angular movements, making it ideal for complex piping systems where multiple directional movements occur simultaneously.
Exceptional Corrosion and Temperature Resistance – Constructed from premium stainless steel grades, including SS304, SS316L, SS310S, and other high-performance alloys, the compensator withstands corrosive media and extreme temperatures ranging from -196°C to +800°C, depending on material selection.
High Pressure Capability – Engineered to handle pressures up to 100 bar, with higher ratings available upon request, ensuring reliable performance in high-pressure industrial applications.
Long Fatigue Life – The multi-ply bellows construction provides a low spring rate while maintaining excellent fatigue resistance, ensuring extended service life even under cyclic loading conditions.
Versatile Configuration Options – Available with optional features including internal flow liners for bellows protection against turbulent or abrasive media, external covers for physical protection, tie rods for pressure thrust retention, and limit rods to prevent over-extension or over-compression.
Applications
This universal expansion joint compensator finds extensive use across diverse industrial sectors:
This universal expansion joint compensator finds extensive use across diverse industrial sectors:
Petrochemical and Chemical Processing – Absorbs thermal expansion and vibration in high-temperature piping systems handling steam, oil, gas, and corrosive chemicals
Power Generation – Compensates for thermal growth in boiler systems, exhaust gas lines, and turbine piping
Steel and Metal Processing – Accommodates movements in furnace piping and high-temperature gas ducting
HVAC and Ventilation Systems – Absorbs vibration and thermal movements in air handling and exhaust systems
Marine and Offshore – Provides reliable compensation in shipboard piping systems subject to dynamic movements
Technical Specifications
The compensator is available in a broad size range from DN15 to DN6000, with customizable dimensions and configurations to meet specific project requirements. Standard design and manufacturing follow internationally recognized codes including ASME BPVC, EJMA standards, GB/T12777, and various international flange standards such as ANSI, DIN, and JIS.
The compensator is available in a broad size range from DN15 to DN6000, with customizable dimensions and configurations to meet specific project requirements. Standard design and manufacturing follow internationally recognized codes including ASME BPVC, EJMA standards, GB/T12777, and various international flange standards such as ANSI, DIN, and JIS.
Surface treatments such as sandblasting, painting, polishing, and pickling passivation are available to enhance corrosion resistance and meet specific application requirements.
