Caleffi · 2026 catalog
520610A
001 1" NPT male union 2.0
Published catalog evidence
Exact manufacturer record
- Code
- 520610A
- Description
- 001 1" NPT male union 2.0
- Catalog weight
- 3.7 lb
- Published row
- 520610A 001 1" NPT male union 2.0 3.7 -
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.
Related catalog codes
Same code prefix
1.7 lb520419A½" sweat union 2.01.7 lb520419AC½" sweat union, check valves 2.02 lb520519A¾" sweat union 2.02.1 lb520519AC¾" sweat union, check valves 2.03.7 lb520619A001 1" sweat union 2.03.8 lb520619AC001 1" sweat union, check valves 2.01.7 lb520416A½" press union 2.01.7 lb520416AC½" press union, check valves 2.0