Caleffi · 2026 catalog
551100A
4" ANSI flange
Published catalog evidence
Exact manufacturer record
- Code
- 551100A
- Description
- 4" ANSI flange
- Catalog weight
- 67 lb
- Published row
- 551100A 4" ANSI flange 67 -
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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