Bell & Gossett D Series 116502 Pressurized Expansion Tank, 21.7 gal Capacity, 1/2 in, MNPT, Carbon Steel

Hydronic Expansion Tanks
657955 MFG #: 116502
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Bell & Gossett D Series 116502 Pressurized Expansion Tank, 21.7 gal Capacity, 1/2 in, MNPT, Carbon Steel
  • Connection Size: 1/2
  • Connection Type: MNPT
  • Dimensions: 29 in H x 16-1/4 in Dia
  • Manufacturer: Bell & Gossett
  • Material: Carbon Steel
  • Series: D
  • Temperature Rating: 240

Pre-charged Expansion Tanks contain either a bladder or a diaphragm to separate the air charge from the system water. Tanks are design to absorb the expansion forces of heating/cooling system water while maintaining proper system pressurization under varying operating conditions.

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  • Features
  • Series "D" expansion tanks are ASME-rated pre-charged diaphragm-type pressure vessels
  • The Series "D" tank is designed to absorb the expansion forces of heating/cooling system water while maintaining proper system pressurization under varying operating conditions
  • The heavy-duty diaphragm separates system water from the tank air charge thereby eliminating waterlogging problems
  • Reduces oxygen corrosion
  • Increases system performance
  • Forged steel system connection
  • 0.302 in - 32 NC charging valve
  • 11.3 gal acceptance volume
  • Not for potable water systems
  • STANDARD_APPROVALS: Designed and constructed per ASME Section VIII|Division 1