DN80-DN3200 Flanged Axial Stainless Steel Metal Bellows Expansion Joint
DN80-DN3200
Designed for demanding pipeline systems, this flanged axial expansion joint compensates for thermal expansion, contraction, and minor misalignment in industrial piping networks. Manufactured from high-grade stainless steel with integral flanged ends, it ensures reliable, leak‑free performance across a wide range of pressures and temperatures.
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
Key Features
Wide Size Range – Available from DN80 through DN3200, accommodating both small-bore process lines and large-diameter main headers.
All-Stainless Steel Construction – Bellows, end fittings, and internal components are fabricated from austenitic stainless steels (e.g., 304, 316L, or 321), offering excellent resistance to corrosion, oxidation, and aggressive media.
Integral Flanged Ends – Standard raised-face or flat-face flanges (PN10/16/25, ANSI 150/300, or custom drilling) enable direct, rigid bolted connections to mating equipment or piping, eliminating the need for additional adapters.
Axial Movement Capacity – Engineered to absorb substantial axial compression and extension, with stroke lengths tailored to system requirements (standard and long-stroke configurations available).
Multi-Ply Bellows Design – Layered thin-wall plies provide high flexibility with improved pressure containment, reducing spring rates and minimising reaction forces on anchors and supports.
Internal Flow Liners (optional) – Smooth internal sleeves reduce turbulence, protect the bellows from erosion and abrasion, and ensure unobstructed flow with minimal pressure drop.
External Accessories – Can be supplied with tie rods, limit stops, or covers to control over-extension, prevent over-compression, and safeguard against external mechanical damage.
Performance Capabilities
Nominal sizes: DN80 – DN3200
Design pressures: Up to 40 bar (depending on size and material)
Design temperatures: –196 °C to +550 °C (cryogenic and high‑temperature grades available)
Movement compensation: Axial travel up to ±200 mm or more (customised per project)
End connections: Welded‑on flanges (carbon steel or stainless steel) per EN, ASME, JIS, or other international standards
Cyclic fatigue life: Rated for >1000 to >10,000 full cycles (depending on selected design)
Quality & Compliance
Manufactured in accordance with EJMA (Expansion Joint Manufacturers Association) standards
Optional certification to PED 2014/68/EU, ASME Boiler & Pressure Vessel Code, or ISO 9001
100% hydrostatic or pneumatic pressure testing, with helium leak testing available upon request
Custom designs for seismic, blast, or vacuum service conditions
Ordering Information
To ensure optimal selection, please provide the following at the time of enquiry:
Nominal diameter (DN)
Design pressure and temperature
Total axial movement required (compression + extension)
Flange standard, rating, and facing
Medium composition (for material compatibility)
Any special limitations (space constraints, external loads, cycle life requirements)
This flanged axial stainless steel metal bellows expansion joint offers a robust, field‑proven solution for absorbing pipe movements while maintaining system integrity. Its corrosion‑resistant materials, flexible design, and compliance with international codes make it the preferred choice for engineers who demand long service life and minimal maintenance in critical applications.
For further technical data, installation guidelines, or project‑specific engineering support, please contact our application engineering team.
Wide Size Range – Available from DN80 through DN3200, accommodating both small-bore process lines and large-diameter main headers.
All-Stainless Steel Construction – Bellows, end fittings, and internal components are fabricated from austenitic stainless steels (e.g., 304, 316L, or 321), offering excellent resistance to corrosion, oxidation, and aggressive media.
Integral Flanged Ends – Standard raised-face or flat-face flanges (PN10/16/25, ANSI 150/300, or custom drilling) enable direct, rigid bolted connections to mating equipment or piping, eliminating the need for additional adapters.
Axial Movement Capacity – Engineered to absorb substantial axial compression and extension, with stroke lengths tailored to system requirements (standard and long-stroke configurations available).
Multi-Ply Bellows Design – Layered thin-wall plies provide high flexibility with improved pressure containment, reducing spring rates and minimising reaction forces on anchors and supports.
Internal Flow Liners (optional) – Smooth internal sleeves reduce turbulence, protect the bellows from erosion and abrasion, and ensure unobstructed flow with minimal pressure drop.
External Accessories – Can be supplied with tie rods, limit stops, or covers to control over-extension, prevent over-compression, and safeguard against external mechanical damage.
Performance Capabilities
Nominal sizes: DN80 – DN3200
Design pressures: Up to 40 bar (depending on size and material)
Design temperatures: –196 °C to +550 °C (cryogenic and high‑temperature grades available)
Movement compensation: Axial travel up to ±200 mm or more (customised per project)
End connections: Welded‑on flanges (carbon steel or stainless steel) per EN, ASME, JIS, or other international standards
Cyclic fatigue life: Rated for >1000 to >10,000 full cycles (depending on selected design)
Quality & Compliance
Manufactured in accordance with EJMA (Expansion Joint Manufacturers Association) standards
Optional certification to PED 2014/68/EU, ASME Boiler & Pressure Vessel Code, or ISO 9001
100% hydrostatic or pneumatic pressure testing, with helium leak testing available upon request
Custom designs for seismic, blast, or vacuum service conditions
Ordering Information
To ensure optimal selection, please provide the following at the time of enquiry:
Nominal diameter (DN)
Design pressure and temperature
Total axial movement required (compression + extension)
Flange standard, rating, and facing
Medium composition (for material compatibility)
Any special limitations (space constraints, external loads, cycle life requirements)
This flanged axial stainless steel metal bellows expansion joint offers a robust, field‑proven solution for absorbing pipe movements while maintaining system integrity. Its corrosion‑resistant materials, flexible design, and compliance with international codes make it the preferred choice for engineers who demand long service life and minimal maintenance in critical applications.
For further technical data, installation guidelines, or project‑specific engineering support, please contact our application engineering team.
