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Copper reducing tee, three socket ends, two large one small

Nibco, Inc.

Nibco, Inc. 611R Reducing Tee Trap 2-1/2x2-1/2x1-1/2 in

SKU CH-NX7X-WR9N4 MPN 611R

A reducing tee trap joins three copper tubes of differing diameters for drainage systems

  • TypeDrain Components
  • MaterialHAWA
  • Reducing tee connects three copper tubes in one fitting
  • Wrot copper construction resists corrosion for long service life
  • C x C x C solder joints create leak-free connections
  • Rated to 336 psi at 100 °F for high-pressure systems
  • Operates from -20 °F to 400 °F across wide temperature range

Reducing Tee for Copper Pipework

The Nibco 611R is a wrot copper reducing tee with C x C x C connections. It joins a 2-1/2 in run to a 1-1/2 in branch in plumbing and hydronic systems. The fitting is rated for 336 psi at 100 °F and handles temperatures from -20 °F to 400 °F. It meets ASME/ANSI B 16.22 for wrought copper solder-joint fittings.

Upgrading from Smaller Branch Connections

Installers choose this tee when a 2-1/2 in main line needs a 1-1/2 in take-off without adding separate reducers. The single-piece body removes two extra solder joints and reduces potential leak paths. The jump is worth it when system pressure approaches the 336 psi rating and a compact, code-compliant transition is required.

Suited for High-Temperature Hydronic Loops

This fitting suits contractors running copper mains in heating or cooling loops that see up to 400 °F. It is not for installers who need press-connect or threaded ends, nor for systems that exceed the 336 psi pressure limit. Buyers requiring different branch sizes or connection types should select an alternative fitting.

Highlights

  • Reducing tee connects three copper tubes in one fitting
  • Wrot copper construction resists corrosion for long service life
  • C x C x C solder joints create leak-free connections
  • Rated to 336 psi at 100 °F for high-pressure systems
  • Operates from -20 °F to 400 °F across wide temperature range

Specifications

TypeDrain Components
MaterialHAWA
BrandNibco
Model611R 21/2x21/2x11/2

Questions about this item

What copper tube sizes does the 2-1/2 x 2-1/2 x 1-1/2 in reducing tee connect?

It joins two 2-1/2 in copper tubes on the run and a 1-1/2 in copper tube on the branch, all using C x C x C solder cups.

How do you solder the wrot copper tee without damaging the joint, and what step is often missed?

Clean each tube end and fitting cup, apply flux, assemble, heat evenly until solder flows into all three cups, then wipe excess; the missed step is heating all three cups uniformly so the branch fills completely.

When should the reducing tee be inspected or replaced in a hydronic system?

Inspect during routine system checks for green corrosion, joint weeping, or stress cracks; replace if pressure testing exceeds the 336 psi @ 100 Degrees F rating or if the system operates near the 400 Degrees F limit.

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