1/2" Threaded Expansion Tank Service Valve w/ Hose Drain

1/2" Threaded Expansion Tank Service Valve w/ Hose Drain

The HGSV12 from Calefactio is a 1/2” Threaded Expansion Tank Service Valve w/ Hose Drain. It's compatible with all non-potable expansion tanks, including Calefactio HGT series, Amtrol Extrol & Radiant Extrol series, B&G HFT series, Watts EXT series and others. It is designed to simplify expansion tank replacement/re-charging and filling/draining the system. HGSV12 is a simpler version of the Webstone 41672 valve and does not have the supply line connection.


Technical Specifications:

  • Inlet (bottom - expansion tank) connection: 1/2" female threaded;
  • Outlet (top - system) connection: 1/2" male threaded;
  • Side outlet: 3/4" garden hose type thread with cap;
  • Ball valve type: 1/4-turn;
  • Not for potable water use.
Product Specs
Ball valve type: 1/4-turn
Inlet (bottom - expansion tank) connection: 1/2" female threaded
Outlet (top - system) connection: 1/2" male threaded
Side outlet: 3/4" garden hose type thread with cap

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  • Model: HGSV12
  • MPN: HGSV12
  • Availability: 11
  • $ 14.45

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Tags: Calefactio, Expansion Tanks, Heating Supplies, Radiant Heating System, Heating and Cooling

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