All calculations
Thermal Expansion & Expansion Joint Movement
How far the line grows, the movement asked of the expansion joint, and the stroke needed with cold pull.
Unit system
Inputs
Total growth
79.81mm
Stroke asked of the joint
39.91mm
Details
| Growth per metre | 1.995 mm |
| Operating temperature used | 179.9 °C |
| Rise above installation | 159.9 K |
| Mean expansion coefficient (1/K) | 1.248e-5 |
| Note | With cold pull the same bellows serves nearly twice the run; it is compressed 39.9 mm the other way on installation. |
Assumptions
- The MEAN expansion coefficient is used (referenced to 20 °C), not the instantaneous one. That is the correct one for total growth.
- The line is assumed free to grow. Intermediate guides and friction reduce the real movement somewhat but raise the anchor loads.
Continue with this result
Calculation report
A PDF carrying the inputs, results, assumptions and the source. A one-time code is sent to your address.
Source
- EN 13480-3 · Termal genleşme
- EJMA · Ön germe (cold pull) uygulaması
Results are for engineering pre-assessment and are not a product selection commitment. Final responsibility rests with the user.
Terms of use