Model HPFF3 Compensator
Compensators
The HPFF3 is an externally pressurized expansion compensator that has several advantages over other in-line bellows joints. Since the pressure is on the outside of the bellows, more corrugations can be added to the design resulting in a joint capable…
Product Description
Product Highlights
Additional Resources
Submittals
Product Description
The HPFF3 is an externally pressurized expansion compensator that has several advantages over other in-line bellows joints. Since the pressure is on the outside of the bellows, more corrugations can be added to the design resulting in a joint capable of more movement. The design features pipe that acts as a liner and a casing that acts as a cover to protect the bellows from damage. An internal guide makes this a stable, rugged joint.
All inline bellows expansion joints develop anchor loads and require guiding. Refer to the design guide or consult Metraflex or your local representative for more information.
Product Highlights
- Conforms to MIL-DTL-17813H
- Maximum Working Temperature 400°F
- Maximum Working Pressure 150 PSI
- Maximum Test Pressure 225 PSI at 70°F
- Body 304 Stainless Steel
- Bellows 2-Ply 304 Stainless Steel
- End fittings Copper Female Sweat Ends
- CAUTION: Silver brazing used in construction. Do not exceed 1000°F during installation. Avoid flux exposure to the stainless-steel components of the HPFF3.
Additional Resources
Submittals
HPFF3 Submittal
HPFF3 - Copper Body, 304 Stainless Steel Bellows
| PART NO. | Pipe Size | Pressure / Temp | Compression | Extension | Effective Area (in2) |
Spring Rate (lbs/in) |
Weight | 3D Drawing |
|---|---|---|---|---|---|---|---|---|
| HPFF30075 | .75″ | 150 PSIG at 400 deg F. | 3″ | 0.5″ | 1.1 | 58 | 1 | Revit/CAD |
| HPFF30100 | 1″ | 150 PSIG at 400 deg F. | 3″ | 0.5″ | 1.7 | 63 | 1.5 | Revit/CAD |
| HPFF30125 | 1.25″ | 150 PSIG at 400 deg F. | 3″ | 0.5″ | 2.4 | 54 | 2 | Revit/CAD |
| HPFF30150 | 1.5″ | 150 PSIG at 400 deg F. | 3″ | 0.5″ | 3.2 | 52 | 3 | Revit/CAD |
| HPFF30200 | 2″ | 150 PSIG at 400 deg F. | 3″ | 0.5″ | 5.1 | 118 | 4 | Revit/CAD |
| HPFF30250 | 2.5″ | 150 PSIG at 400 deg F. | 3″ | 0.5″ | 7.6 | 110 | 5 | Revit/CAD |
| HPFF30300 | 3″ | 150 PSIG at 400 deg F. | 3″ | 0.5″ | 10.6 | 175 | 6 | Revit/CAD |
| HPFF30400 | 4″ | 150 PSIG at 400 deg F. | 3″ | 0.5″ | 17.9 | 241 | 12 | Revit/CAD |