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 SizePressure / TempCompressionExtensionEffective Area
(in2)
Spring Rate
(lbs/in)
Weight3D Drawing
HPWD40075.75″175 PSIG at 500°F.4″1″1.5414Revit/CAD
HPWD401001″175 PSIG at 500°F.4″1″2.1446Revit/CAD
HPWD401251.25″175 PSIG at 500°F.4″1″3.3386Revit/CAD
HPWD401501.5″175 PSIG at 500°F.4″1″4.3618Revit/CAD
HPWD402002″175 PSIG at 500°F.4″1″6.37212Revit/CAD
HPWD402502.5″175 PSIG at 500°F.4″1″8.89416Revit/CAD
HPWD403003″175 PSIG at 500°F.4″1″13.111521Revit/CAD
HPWD404004″175 PSIG at 500°F.4″1″20.824228Revit/CAD


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

Group 8 Created with Sketch.

PART NO.Pipe SizePressure / TempCompressionExtensionEffective Area
(in2)
Spring Rate
(lbs/in)
Weight3D Drawing
HPTD40075.75″175 PSIG at 500°F.4″1″1.5414Revit/CAD
HPTD401001″175 PSIG at 500°F.4″1″2.1446Revit/CAD
HPTD401251.25″175 PSIG at 500°F.4″1″3.3386Revit/CAD
HPTD401501.5″175 PSIG at 500°F.4″1″4.3618Revit/CAD
HPTD402002″175 PSIG at 500°F.4″1″6.37212Revit/CAD
HPTD402502.5″175 PSIG at 500°F.4″1″8.89416Revit/CAD
HPTD403003″175 PSIG at 500°F.4″1″13.111521Revit/CAD
HPTD404004″175 PSIG at 500°F.4″1″20.824228Revit/CAD


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

Group 8 Created with Sketch.

PART NO.Pipe SizePressure / TempCompressionExtensionEffective Area
(in2)
Spring Rate
(lbs/in)
Weight3D Drawing
HPFD40075.75″175 PSIG at 500°F.4″1″1.54110Revit/CAD
HPFD401001″175 PSIG at 500°F.4″1″2.14416Revit/CAD
HPFD401251.25″175 PSIG at 500°F.4″1″3.33823Revit/CAD
HPFD401501.5″175 PSIG at 500°F.4″1″4.36126Revit/CAD
HPFD402002″175 PSIG at 500°F.4″1″6.37229Revit/CAD
HPFD402502.5″175 PSIG at 500°F.4″1″8.89445Revit/CAD
HPFD403003″175 PSIG at 500°F.4″1″13.111561Revit/CAD
HPFD404004″175 PSIG at 500°F.4″1″20.824272Revit/CAD


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