Caleffi AutoFill boiler fill valve with integrated FlowShield backflow preventer combo. Factory pre-set to 15 psi, automatically fills hydronic heating systems to setpoint without manual lever operation. Includes fine mesh strainer, anti-scale internals, visual pressure indicator, and atmospheric air vent for potable water protection. 1/2" female NPT connections; max 175 psi inlet, 210°F operating temperature.
Caleffi 573002A Combination Filling Valve 1/2" NPT
Caleffi
$180.95
In Stock — 10+ available
- SKU:
- 573002A
- Product Type:
- Boiler Fill Valve with Backflow Preventer
- Subcategory:
- Automatic Fill Valve
- Application:
- Residential/Commercial
- System Type:
- Boiler, Hydronic Heating, Radiant Floor
- Installation Type:
- OEM Replacement
- Temperature Range:
- 32°F to 210°F
- Setpoint Range:
- 3–60 psi
- Pressure Rating:
- 175 psi
- Inlet Size:
- 1/2" NPT
- Connection Type:
- NPT
- Connection / Joint:
- NPT
- Material:
- Brass body, stainless steel filter, PSU check valve, EPDM diaphragm and seals