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Nibco, Inc.

Nibco, Inc. 611RR 1-1/2 x 3/4 x 1-1/2 Reducing Tee

SKU CH-TFMP-J7D39 MPN 611RR

Copper reducing tee connects 1-1/2 in. and 3/4 in. lines for potable water systems

  • TypeDrain Components
  • MaterialHAWA
  • Copper construction resists corrosion for long service life
  • Reducing tee connects 1-1/2 in and 3/4 in lines in one fitting
  • Sweat cup connections create permanent leak-free joints
  • Wrot copper material meets potable water standards
  • Brand NIBCO trusted by plumbing professionals

Copper Reducing Tee for Potable Water Systems

This NIBCO 611RR reducing tee connects three copper tubes in a potable water installation. The fitting uses sweat cup connections on all three ends for soldered joints. It reduces from 1 1/2 inch on the run to 3/4 inch on the branch. The wrot copper construction suits standard plumbing applications.

Sweat Cup Connections and Wrot Copper Build

All three ports feature cup-style sweat connections sized for 1 5/8 inch, 7/8 inch, and 1 5/8 inch outer diameter copper tube respectively. The wrot copper material provides a uniform grain structure for reliable solder adhesion. The reducing tee shape allows a direct transition without separate reducer couplings. Joint integrity depends on proper cleaning flux and solder technique.

Pressure and Temperature Performance in Service

The copper body handles typical domestic hot and cold water pressures and temperatures without degradation. Copper resists internal corrosion and scale buildup in potable systems. Thermal expansion matches the connected copper tube to maintain joint seal integrity during temperature cycles. No moving parts or seals exist to wear or leak over time.

Highlights

  • Copper construction resists corrosion for long service life
  • Reducing tee connects 1-1/2 in and 3/4 in lines in one fitting
  • Sweat cup connections create permanent leak-free joints
  • Wrot copper material meets potable water standards
  • Brand NIBCO trusted by plumbing professionals

Specifications

TypeDrain Components
MaterialHAWA
BrandNibco
Model611RR 11/2x3/4x11/2

Questions about this item

What connection type does the 611RR reducing tee use for each of its three ports?

All three ports are cup-type sweat connections sized for 1 1/2 in, 3/4 in and 1 1/2 in copper tube respectively.

What outside diameter copper tube is required to fit the 611RR tee?

The run ports need 1 5/8 in OD tube and the branch port needs 7/8 in OD tube for a proper sweat joint.

How is the 611RR tee installed and what step is often missed?

Clean and flux the tube ends and fitting cups, insert fully, then apply heat evenly around each joint until solder flows — forgetting to flux all three cups before heating is the common error.

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