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  • Air Separator Tanks
  • Blowdown Tanks
  • Expansion Tanks
  • Air Receiver Tanks
  • Fire Protection Tanks
  • Water Heaters
  • Water Storage Tanks
  • Chill Water / Buffer Tanks
  • Hydropneumatic Tanks
  • Flash Tanks

Expansion Tanks

Tanks that allow for the expansion and contraction of a hydronic system and provide proper pressurization under different conditions.

Expansion Tanks

Our standard expansion tank allows for the expansion and contraction of a hydronic system and provides for proper pressurization under different operating conditions. We recommend using ASHRAE’s latest guide and data book for determining your tank volume requirements.

The catalog “C” model expansion tank drawing is our standard tank. Please consult the factory for expansion tanks built to your specific specifications if changes are required.

Our expansion tanks are designed for 150 psi A.S.M.E. code with stamp and are tested at 225 psi. The “C” model tanks are thoroughly power wire-brushed and prime painted prior to shipment. The “CG” model is our standard hot-dipped galvanized expansion tank.

GENERAL NOTES

  • Tanks are designed, constructed, and stamped in accordance with Section VIII, Division 1 for the A.S.M.E. Code for unfired pressure vessels.
  • Tank exterior to be prime painted with one coat of standard shop primer.
  • Inspection openings are provided on all expansion tanks as required by A.S.M.E. code.
  • See Engineer Specification W-700 for a written specification for this tank.
See Additional Specs
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