DN250 Universal Welding Stainless Steel Metal Bellows Expansion Joint Compensator

Key Features
Universal Movement Compensation: Designed to accommodate axial compression/extension, lateral displacement, and angular deflection simultaneously, providing maximum flexibility for complex piping layouts.
High-Quality Stainless Steel Construction: The bellows is fabricated from corrosion-resistant stainless steel (SS304/SS316L or customized), ensuring long service life and superior performance in aggressive media and harsh environments.
Welded End Connections: Universal welding ends enable secure, leak-proof integration with pipeline systems, suitable for high-pressure and high-temperature service conditions.
DN250 Nominal Diameter: Engineered for 10-inch (DN250) pipelines, delivering high flow capacity with minimal pressure loss.
Fatigue-Resistant Bellows Design: Multi-ply or single-ply hydroformed bellows with optimized convolution geometry provides excellent fatigue resistance and cyclic life.
Low Maintenance & Easy Installation: No packing, gaskets, or moving seals required; the unit is maintenance-free and simple to install by welding.
Customizable Options: Available with limit rods, covers, liners, and various flange or weld-end configurations to meet specific project requirements.
Technical Specifications
The expansion joint is available in DN250 (10-inch) nominal diameter with bellows materials including SS304, SS316L, and SS321 as standard options. Welded end connections (butt-weld or socket-weld) ensure secure installation. Design pressure ratings up to PN16, PN25, Class150, or Class300 are available and can be customized according to project requirements. The design temperature range extends from -196°C to +600°C, depending on the selected material. The unit provides universal movement capability covering axial, lateral, and angular displacement. Manufacturing and testing comply with EJMA, ASME B31.3, and GB/T 12777 standards.
Applications
HVAC and district heating/cooling systems
Power generation plants (steam and hot water lines)
Petrochemical and chemical processing pipelines
Water treatment and municipal piping networks
Shipbuilding and offshore engineering
Steel mills and general industrial piping systems
Why Choose Our DN250 Universal Expansion Joint?
Our expansion joints are precision-engineered and rigorously tested to meet international quality standards. Each unit undergoes hydrostatic testing, bellows fatigue analysis, and dimensional inspection before delivery. With advanced welding technology and strict quality control, we guarantee dependable performance, extended service life, and full compliance with project specifications.