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