Caleffi · 2026 catalog
551004A
½" FNPT and ¾" MNPT
Published catalog evidence
Exact manufacturer record
- Code
- 551004A
- Description
- ½" FNPT and ¾" MNPT
- Catalog weight
- 0.8 lb
- Published row
- 551004A ½" FNPT and ¾" MNPT 0.8 -
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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