Caleffi · 2026 catalog
535381HA
1½" NPT female union, gauge
Published catalog evidence
Exact manufacturer record
- Code
- 535381HA
- Description
- 1½" NPT female union, gauge
- Catalog weight
- 7.4 lb
- Published row
- 535381HA 1½" NPT female union, gauge 7.4 -
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