UM Type
expansion joints
UM Type
expansion joints
| Item | Description |
| 1 | V-Clamp flange |
| 2 | Bellows |
| 3 | Flange |
| 4 | Pipe |
| 5 | Internal liner |
UM Type
expansion joints
Features
- Customized for flue gas applications, designed for engine exhaust systems.
- Located in the engine exhaust system, in mainly two areas. The flue gas line between the engine and the turbo charger, and on the charger air lines.
- Designed for, and operate at high temperatures, where vibrations are present and pressure impulses occur.
Advantages
- Highly customizable design: Bellows geometry, material options and combinations
- Multiply bellows with low spring rate and high cycle life
With loose/ swivel flange connection:
- Easy installation, flanges can be rotated
- Flanges are not in contact with medium, which enables lower grade material
- Connection with non weldable materials possible
- Galvanic surfaces/ coatings possible
- Gaskets can often be eliminated
Materials
- Weld ends: 1.0038 - S235JRG2; 1.0425 - P265GH; 1.0254 - P235TR1; 1.0345 - P235GH; 1.5415 (16Mo3) ; 1.4404 (AISI 316L); 1.4436 (AISI 316)
- Bellows: 1.4541 (AISI 321); 1.4301 (AISI 304); 1.4306 (AISI 304L); 1.4401 (AISI 316); 1.4436 (AISI 316); 1.4404 (AISI 316L); 1.4435 (AISI 316L); 1.4571 (AISI 316Ti); 1.4828 (AISI 309)
- Flanges: 1.0038 - S235JRG2; 1.0425 - P265GH; 1.0315 - P235G2TH; 1.0254 (P235TR1); 1.0425 - P265GH; 1.5415 - 16Mo3; 1.4404 (AISI 316L); 1.4436 (AISI 316)
Other materials are available on request.
Standards and approvals
Design codes and options:
Bellows: EJMA 9, EN14917, EN13480, EN13445, ASME B31.3
NDT and documentation:
EagleBurgmann EJ holds type approvals for a range of UM type metal expansion joints, covering e.g. steel ships / marine / offshore units. Furthermore, an Individual design approval can be a possibility for joints in excess of specific type approvals.
Bellows: EJMA 9, EN14917, EN13480, EN13445, ASME B31.3
NDT and documentation:
EagleBurgmann EJ holds type approvals for a range of UM type metal expansion joints, covering e.g. steel ships / marine / offshore units. Furthermore, an Individual design approval can be a possibility for joints in excess of specific type approvals.
Recommended applications
- Power plant technology
- Shipbuilding
- Engine exhaust systems
Product variants
UM1: Single expansion joints
Expansion joints can be designed with one or two bellows depending on requirements for e.g., movements.
Expansion joints can be designed with one or two bellows depending on requirements for e.g., movements.
UM2: Universal expansion joints
UM2: Universal expansion joints
Expansion joints can be designed with one or two bellows depending on requirements for e.g., movements.
Expansion joints can be designed with one or two bellows depending on requirements for e.g., movements.
Similar products
AN Type expansion joints
- Tied custom metal expansion joints for general pressure applications.
- Designed for, and cover the mid temperature and pressure range for general process equipment.
- Mainly for angular movements.
- Tied metal expansion joints retain pressure thrust developed by internal pressure, through the use of hardware.
AX Type expansion joints
- Untied custom metal expansion joints for general pressure applications.
- Designed to cover the mid temperature and pressure range for general process equipment.
- Mainly intended for axial movements.
- Multiply bellows with low spring rate and high cycle life.
CB Clamshell metal expansion joints
- Bellows or expansion joints split into longitudinal segments for installation without opening pipework.
- Temporary repair solution for damaged expansion joints.
- Can handle axial, lateral and angular movements.
- The permissible combination and magnitude of movements depends on the application and the existing expansion joint that is to be repaired.