Caleffi · 2026 catalog
520419AC
½" sweat union, check valves 2.0
Published catalog evidence
Exact manufacturer record
- Code
- 520419AC
- Description
- ½" sweat union, check valves 2.0
- Catalog weight
- 1.7 lb
- Published row
- 520419AC ½" sweat union, check valves 2.0 1.7 -
Verification boundary
What still needs to match
Function and seriesConfirm valve, separator, manifold, fill, control, backflow, or accessory function and exact series.
ConnectionsVerify NPT, sweat, press, PEX, flange or union connection type and size.
Hydronic dutyCheck pressure, temperature, flow/Cv, materials, seals, potable/hydronic approvals, and control compatibility.
InstallationConfirm orientation, envelope, service access, and current Caleffi documentation.
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