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Caleffi 573009A 1/2" Sweat Backflow Preventer Autofill Valve

Caleffi

$161.95

In Stock — 10+ available

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SKU:
573009A
Product Type:
Backflow Preventer with AutoFill Valve
Subcategory:
Hydronic System Fill Valve
Application:
Residential/Commercial
System Type:
Boiler, Radiant Floor Heating, Hydronic Heating
Installation Type:
OEM Replacement
Inlet Size:
1/2" NPT Female
Connection Type:
Sweat/Solder, NPT
Connection / Joint:
Sweat/Solder, NPT
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Ships same or next business day · UPS Ground, typically 1–5 business days.

Caleffi 573009A combines a backflow preventer and automatic fill valve for hydronic heating systems. Features 1/2" sweat connection and 1/2" NPT female inlet. Maintains proper water level via float mechanism, prevents reverse flow contamination, and protects against low-water damage in boilers and radiant heating systems.