HFA
Axial Expansion Joint
Note | Type HFA - Axial Expansion Joint | 3D view
Standard model stainless steel axial expansion joint composed of single- or multi-ply unrestrained bellow, for mounting with flanges (weld-on) up the pipeline.
Available with optional inner sleeve for bellow's protection and improved stability. Couplings can be made out of various carbon-steel or stainless steel grades.
For detailed technical specifications on HFA axial expansion joints please check the following table and documents or contact us.
Features
- stainless steel bellow
- axial movement compensation
- optional inner sleeve
- fixed (weld-on) flanges
- standard program available
Technical Specifications
| Type | Series |
Size Range |
Pressure Class |
Movements | |||
|---|---|---|---|---|---|---|---|
| Axial [+/-mm] | Lateral [+/-mm] | Angular [+/-deg] | |||||
|
Axial Stainless Steel |
HFA | DN15-DN250 | PN16 | yes | no ** | no ** | |
|
* constructions with tie-rods are recommended for pressure thrust restraint and movement limitation ** limited lateral and angular movements are possible / acc. to individual quotation |
|||||||
| Type | Axial Stainless Steel | ||||||
|---|---|---|---|---|---|---|---|
| Series | HFA | ||||||
| Couplings | flanges (weld-on) | ||||||
| Size/Range | DN15-DN250 | ||||||
| Pressure | PN16 | ||||||
| Axial | yes | ||||||
| Lateral | no ** | ||||||
| Angular | no ** | ||||||
|
* constructions with tie-rods are recommended for pressure thrust restraint and movement limitation ** limited lateral and angular movements are possible / acc. to individual quotation |
|||||||
Standard Program
|
Nominal Diameter [mm] |
Axial Movement [±mm] |
Spring Rate [N/mm] |
Overall Length [mm] |
Approx. Weight [kg] |
|
|---|---|---|---|---|---|
| 15 | 12 | 29 | 100 | 1.3 | |
| 20 | 12 | 29 | 100 | 1.6 | |
| 25 | 15 | 65 | 105 | 2.2 | |
| 32 | 15 | 60 | 120 | 3.5 | |
| 40 | 15 | 72 | 125 | 3.9 | |
| 50 | 23 | 82 | 150 | 4.7 | |
| 65 | 23 | 72 | 155 | 5.9 | |
| 80 | 23 | 91 | 165 | 8.0 | |
| 100 | 23 | 79 | 170 | 8.7 | |
| 125 | 23 | 119 | 185 | 10.9 | |
| 150 | 33 | 162 | 205 | 12.7 | |
| 200 | 35 | 149 | 235 | 18.2 | |
| 250 | 35 | 153 | 240 | 22.7 | |
|
* overall length can be adjusted on individual request. |
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