These untied expansion joints feature an external sealable shroud and are designed for large axial movements, making them useful for district heating applications.
ITEM | DESCRIPTION |
---|---|
1 | Media / line pipe |
2 | Bellows |
3 | Outer casing / shroud |
4 | Inner casing / shroud |
Diameter: DN 40 ... DN 600 (1.75" ... 24”)
Temperature: ... 120 °C (248 °F)
Pressure: 16 barg (232 PSIG), 25 barg (362 PSIG)
Design code:
EJMA, (4-5) Cycles
NDT and documentation:
Can be provided per customer request e.g.,
material certificates and NDT test reports.
Custom designs and sizes are available on request. Untied metal expansion joints require guide and support. DX3S type expansion joints are used to ease installation by facilitating movement during the first startup. Once in operation, the expansion joint is fix (seal) welded.