Penetration seal
metal expansion joints
Penetration seal
metal expansion joints
Penetration seal (with telescopic covers option)
area cross section.
* Shown for illustration only.
area cross section.
| Item | Description |
| 1 | Bellows |
| 2 | Outside ring |
| 3 | Inside ring |
| 4 | Drain plug (optional) |
| 5 | Cover ring (optional) |
| 6 | Inside cover (optional) |
| 7 | Outside cover (optional) |
| 8 | Boiler wall* |
| 9 | Penetration pipe* |
* Shown for illustration only.
Penetration seal
metal expansion joints
Merkmale
- 100 % airtight solution to boiler penetration.
- Permits axial and lateral movement without causing high stresses in penetration pipe and boiler wall.
- Maintenance-free
- Used in heat recovery steam generators (HRSGs).
Vorteile
- Improved boiler efficiency through zero gas seepage.
- Improved boiler efficiency through reduced heat loss.
- No emissions
- Noise reduction
Werkstoffe
- Bellows material options: 1.4301(ANSI 304), 1.4404 (ANSI 316/L dual-certified), 1.4541 (ANSI 321), Inconel® 600, Inconel® 625, 254 SMO®, Incoloy® 25-6HN.
- Bellows basics: formed by punch mandrel, thin-wall ply thickness ≤1.5 mm (0.060”).
- Rings, bands: carbon steel, chrome-moly.
- Metal covers: carbon steel, stainless steel.
Standards und Freigaben
- GE Specification
- Expansion Joint Manufacturers Association (EJMA)
- ISO 9001:2008
Empfohlene Anwendungen
- Power plant technology
- Refining technology
- HRSGs (heat recovery steam generators)
Funktionsbeschreibung
Metal expansion joints are used in pipelines to compensate for thermal growth, typically in applications with high internal temperatures; or to prevent vibrations from being transmitted beyond the expansion joint.
Hinweis
Standard quality control and testing:
Service:
- Air and soap bubble leak check.
Service:
- Skilled field service teams can provide site support.
- Expert clamshell (split bellows, for in situ repair) bellows welders.
- Experienced supervision by our field service personnel available.
Ähnliche Produkte
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.