573002A
Caleffi AutoFill Combo (with backflow preventer) , 1/2 in. NPT
Caleffi AutoFill Combo (with backflow preventer) , 1/2 in. NPT
Details
| Material | Brass |
| Max inlet pressure | 175 psi |
| Max working temp | 150˚F |
| Setting pressure range | 3 - 60 psi |
| Preset outlet pressure | 15 psi |
| Pressure gauge scale | 0 - 60 psi / 0-4 bar |
Automatic Boiler Fill Valve w/Backflow Preventer
Function
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.
Pre-assembled with the 573 series backflow preventer, the AutoFill™ Combo features an atmospheric vent which is designed to protect drinking water systems from return flow, caused by back-siphoning or back pressure, of contaminated fl uids. The 573 series has been specifically certifi ed to standards CSA B64.3 and ASSE 1012.
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