Model HPFF2 Compensator

Scraped SKU: model-hpff2-compensator 2026-06-13 18:18:59

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{"Product Description":[{"text":"The HPFF2 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 in-line bellows expansion joints develop anchor loads and require guiding. Refer to the design guide or consult Metraflex or your local representative for more information.","links":[]}],"Product Highlights":[{"text":"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 HPFF2.","links":[]}],"Additional Resources":[{"text":"Literature Metraflex-HP-Compensator.pdf Download Now O&M Externally Pressurized Compensator for Copper Systems- HPFF IOM Download Now Spec Sheet Copper Comp HPFF 2 and 3 Download Now BIM / REVIT View/Download Files View Drawings","links":[{"text":"Download Now","url":"https://www.metraflex.com/wp-content/uploads/2020/07/Metraflex-HP-Compensator.pdf"},{"text":"Download Now","url":"https://www.metraflex.com/wp-content/uploads/2020/07/Externally-Pressurized-Compensator-for-Copper-Systems-HPFF-IOM.pdf"},{"text":"Download Now","url":"https://www.metraflex.com/wp-content/uploads/2020/07/Copper-Comp-HPFF-2-and-3-rev.docx"},{"text":"View Drawings","url":"https://metraflex.navigator.traceparts.com/viewitems/compensators/high-pressure-compensator-model-hpff2-1"}]}],"Submittals":[{"text":"HPFF2 Submittal Download Now","links":[{"text":"","url":"https://www.metraflex.com/wp-content/uploads/2020/07/HPFF2-Expansion-Compensator.pdf"},{"text":"Download Now","url":"https://www.metraflex.com/wp-content/uploads/2020/07/HPFF2-Expansion-Compensator.pdf"}]}]}

Description

The HPFF2 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 in-line bellows expansion joints develop anchor loads and require guiding. Refer to the design guide or consult Metraflex or your local representative for more information. 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 HPFF2.

Variations (8)

model-hpff2-compensator-52abd4d9

PART NO.HPFF20075
Pipe Size.75″
Pressure / Temp150 PSIG at 400 deg F.
Compression2″
Extension.5″
Effective Area (in2)1.1
Spring Rate (lbs/in)82
Weight0.75
3D DrawingRevit/CAD

model-hpff2-compensator-3950924c

PART NO.HPFF20100
Pipe Size1″
Pressure / Temp150 PSIG at 400 deg F.
Compression2″
Extension.5″
Effective Area (in2)1.7
Spring Rate (lbs/in)89
Weight1
3D DrawingRevit/CAD

model-hpff2-compensator-e0d30d6a

PART NO.HPFF20125
Pipe Size1.25″
Pressure / Temp150 PSIG at 400 deg F.
Compression2″
Extension.5″
Effective Area (in2)2.4
Spring Rate (lbs/in)75
Weight1.5
3D DrawingRevit/CAD

model-hpff2-compensator-5a23de9f

PART NO.HPFF20150
Pipe Size1.5″
Pressure / Temp150 PSIG at 400 deg F.
Compression2″
Extension.5″
Effective Area (in2)3.2
Spring Rate (lbs/in)74
Weight2
3D DrawingRevit/CAD

model-hpff2-compensator-58cc1113

PART NO.HPFF20200
Pipe Size2″
Pressure / Temp150 PSIG at 400 deg F.
Compression2″
Extension.5″
Effective Area (in2)5.1
Spring Rate (lbs/in)168
Weight3
3D DrawingRevit/CAD

model-hpff2-compensator-030fa665

PART NO.HPFF20250
Pipe Size2.5″
Pressure / Temp150 PSIG at 400 deg F.
Compression2″
Extension.5″
Effective Area (in2)7.6
Spring Rate (lbs/in)188
Weight4
3D DrawingRevit/CAD

model-hpff2-compensator-a6876d40

PART NO.HPFF20300
Pipe Size3″
Pressure / Temp150 PSIG at 400 deg F.
Compression2″
Extension.5″
Effective Area (in2)10.6
Spring Rate (lbs/in)251
Weight4.5
3D DrawingRevit/CAD

model-hpff2-compensator-df48a10e

PART NO.HPFF20400
Pipe Size4″
Pressure / Temp150 PSIG at 400 deg F.
Compression2″
Extension.5″
Effective Area (in2)17.9
Spring Rate (lbs/in)341
Weight9
3D DrawingRevit/CAD

Specifications

Maximum Working Temperature400°F
Maximum Working Pressure150 PSI
Maximum Test Pressure225 PSI at 70°F
Body304 Stainless Steel
Bellows2-Ply 304 Stainless Steel
End fittingsCopper Female Sweat Ends

PDF Documents