Caleffi

Caleffi AutoFill™ 553549A Pre-Adjustable Automatic Filling Valve, 1/2 in, C x FNPT, 230 psi, Brass Body

1183661 MFG #: 553549A
$123.00 / ea
Caleffi AutoFill™ 553549A Pre-Adjustable Automatic Filling Valve, 1/2 in, C x FNPT, 230 psi, Brass Body
  • Body Material: Brass
  • Dimensions: 4-3/4 in L
  • End Style: C x FNPT
  • Nominal Size: 1/2
  • Pressure Rating: 230
  • Series: 553
  • Softgoods Material: NBR Seal
  • Temperature Rating: 150
  • Type: Pre-Adjustable
  • Media: Water/Glycol

Caleffi AutoFill™ Automatic Filling Valve, Pre-Adjustable, Series 553, 1/2 in Nominal Size, C x FNPT, 230 psi, 150 deg F, Media: Water/Glycol, Brass Body, NBR Seal, 4-3/4 in L

The automatic filling valve is a device consisting of a pressure reducing valve with compensating seat, visual system pressure setting indicator, an inlet filter, anti-scale internal parts, a shut-off valve (round knob on bottom) and a check valve. It is installed on the water inlet piping in sealed heating systems, and its main function is to maintain the pressure of the system at a set value, automatically filling up with water as required. The valve is pre-adjustable, meaning it can be set to the desired pressure value before the system charging phase. After installation, during the filling or topping-off phase, the water feed will stop when the set pressure is reached. This valve fills 50% faster than other valves. There are no levers to flip or valve to close.

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  • Features
  • Videos
  • Anti-scale with visual system pressure indicator
  • Automatic fast-filling - Fast fills the system to set pressure then automatically shuts off the water feed, no levers to flip or valves to close
  • Maintains stable pressure at pre-setting - Fill the system to a set pressure and maintain that pressure setting regardless of inlet pressure variations
  • Anti-scale polymer materials - Prevents scaling on internal sliding surfaces, assuring stable pressure control and long operating life
  • Built-in shut-off valve and check valve - Allows isolation of system from supply and check valve prevents loss of system pressure if the supply water drops below system pressure
  • Pre-calibration - Before charging the system, use a screwdriver to turn dial to intended system pressure, downstream pressure gauge is not required
  • Standard/Approvals: ASSE 1012|CSA B64.3|FM 21654|ICIM Certified|ISO 9001
  • INCLUDES: Manual Shut-Off Valve, Strainer and Check Valve
  • WARRANTY: 2 Years