Model HPD4 Compensator

Compensators

The HPD4 is a dual 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…

Product Description

Product Highlights

Additional Resources

Submittals

Product Description

The HPD4 is a dual 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 Expansion Joint Design Guide or consult Metraflex or your local representative for more information.

Product Highlights

  • Conforms to MIL-DTL-17813H
  • Maximum Working Temperature 500°F
  • Maximum Working Pressure 175 PSI
  • Maximum Test Pressure 250 PSI at 70°F
  • Body                     Carbon Steel
  • Bellows                2-Ply 304 Stainless Steel
  • End Fittings
    • 150# Carbon Steel Plate Flanges with 150 lb. drilling.
    • Thread Ends (MPT with anti-torque protection)
    • Weld Ends

HPD4 - Carbon Steel Body, 304 Stainless Steel Bellows, Weld Ends

Group 8 Created with Sketch.

PART NO. Pipe Size Pressure / Temp Compression Extension Effective Area
(in2)
Spring Rate
(lbs/in)
Weight 3D Drawing
HPWD40075 .75″ 175 PSIG at 500°F. 4″ 1″ 1.5 41 4 Revit/CAD
HPWD40100 1″ 175 PSIG at 500°F. 4″ 1″ 2.1 44 6 Revit/CAD
HPWD40125 1.25″ 175 PSIG at 500°F. 4″ 1″ 3.3 38 6 Revit/CAD
HPWD40150 1.5″ 175 PSIG at 500°F. 4″ 1″ 4.3 61 8 Revit/CAD
HPWD40200 2″ 175 PSIG at 500°F. 4″ 1″ 6.3 72 12 Revit/CAD
HPWD40250 2.5″ 175 PSIG at 500°F. 4″ 1″ 8.8 94 16 Revit/CAD
HPWD40300 3″ 175 PSIG at 500°F. 4″ 1″ 13.1 115 21 Revit/CAD
HPWD40400 4″ 175 PSIG at 500°F. 4″ 1″ 20.8 242 28 Revit/CAD


HPD4 - Carbon Steel Body, 304 Stainless Steel Bellows, Thread Ends

Group 8 Created with Sketch.

PART NO. Pipe Size Pressure / Temp Compression Extension Effective Area
(in2)
Spring Rate
(lbs/in)
Weight 3D Drawing
HPTD40075 .75″ 175 PSIG at 500°F. 4″ 1″ 1.5 41 4 Revit/CAD
HPTD40100 1″ 175 PSIG at 500°F. 4″ 1″ 2.1 44 6 Revit/CAD
HPTD40125 1.25″ 175 PSIG at 500°F. 4″ 1″ 3.3 38 6 Revit/CAD
HPTD40150 1.5″ 175 PSIG at 500°F. 4″ 1″ 4.3 61 8 Revit/CAD
HPTD40200 2″ 175 PSIG at 500°F. 4″ 1″ 6.3 72 12 Revit/CAD
HPTD40250 2.5″ 175 PSIG at 500°F. 4″ 1″ 8.8 94 16 Revit/CAD
HPTD40300 3″ 175 PSIG at 500°F. 4″ 1″ 13.1 115 21 Revit/CAD
HPTD40400 4″ 175 PSIG at 500°F. 4″ 1″ 20.8 242 28 Revit/CAD


HPD4 - Carbon Steel Body, 304 Stainless Steel Bellows, Flanged Ends

Group 8 Created with Sketch.

PART NO. Pipe Size Pressure / Temp Compression Extension Effective Area
(in2)
Spring Rate
(lbs/in)
Weight 3D Drawing
HPFD40075 .75″ 175 PSIG at 500°F. 4″ 1″ 1.5 41 10 Revit/CAD
HPFD40100 1″ 175 PSIG at 500°F. 4″ 1″ 2.1 44 16 Revit/CAD
HPFD40125 1.25″ 175 PSIG at 500°F. 4″ 1″ 3.3 38 23 Revit/CAD
HPFD40150 1.5″ 175 PSIG at 500°F. 4″ 1″ 4.3 61 26 Revit/CAD
HPFD40200 2″ 175 PSIG at 500°F. 4″ 1″ 6.3 72 29 Revit/CAD
HPFD40250 2.5″ 175 PSIG at 500°F. 4″ 1″ 8.8 94 45 Revit/CAD
HPFD40300 3″ 175 PSIG at 500°F. 4″ 1″ 13.1 115 61 Revit/CAD
HPFD40400 4″ 175 PSIG at 500°F. 4″ 1″ 20.8 242 72 Revit/CAD


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