Small Size DN25-DN80 Flanged 304 Stainless Steel Metal Bellows Expansion Joint Compensator

Key Features
Constructed with a precision-formed stainless steel bellows, this compensator effectively absorbs axial, lateral, and angular movements caused by temperature fluctuations or mechanical vibration. The flanged connection design ensures easy installation and secure sealing, compatible with standard DN25 to DN80 pipe flanges. The 304 stainless steel material provides superior resistance to rust, oxidation, and many chemical media, making it suitable for both indoor and outdoor installations. The compact small-size design allows for use in space-constrained pipeline layouts without compromising performance.
Technical Specifications
The product is available in nominal diameters from DN25 to DN80. The bellows and wetted parts are made of 304 stainless steel, while the flanges are also 304 stainless steel for consistent corrosion protection. Standard flange drilling conforms to common international standards such as PN16, ANSI 150, or JIS 10K upon request. Working pressure typically ranges up to 16 bar depending on size and configuration. Operating temperature range extends from -196°C to 600°C, subject to specific design and material selection. Movement capabilities include axial compression and extension, lateral offset, and angular deflection, with values varying by model.
Applications
This expansion joint compensator is widely used in HVAC systems, water supply and drainage pipelines, chemical processing, food and beverage production, pharmaceutical manufacturing, and general industrial piping. It is particularly effective in reducing stress on pumps, valves, and connected equipment by isolating vibration and accommodating pipe movement.
Installation and Maintenance
Installation should follow standard piping practices, ensuring proper alignment and support to prevent excessive stress on the bellows. The flanged ends must be securely bolted with suitable gaskets to achieve a leak-free connection. No special maintenance is generally required, but periodic inspection for corrosion, deformation, or leakage is recommended to ensure long-term reliable service.
Quality Assurance
Each unit is manufactured under strict quality control procedures and can be supplied with material certificates and pressure test reports upon request. Custom sizes, flange standards, and movement requirements are available to meet specific project needs.
For further information or to request a quotation, please contact our sales team with your required nominal diameter, flange standard, pressure rating, and movement specifications.