These untied metal expansion joints provide torsion protection and are designed for large axial movements, making them useful for district heating applications.
ITEM | DESCRIPTION |
---|---|
1 | Bellows |
2 | Outer casing / shroud |
3 | Internal liner |
4 | Cone section |
5 | Stop ring |
6 | Guide ring |
7 | Torsion protector |
8 | Media / line pipe |
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, 1,000 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. DH type expansion joints are delivered 100 % preset (extended) using shear bolts, which are activated during startup / first cycle.