Nibco B106700 Cast Copper Pressure Tee 3x3x4 in C X C X C

Product Description

The NIBCO B106700 is a cast copper pressure tee fitting designed for soldered copper piping systems in commercial and residential plumbing applications. This reducing tee connects a 4-inch run to 3-inch branch and outlet connections using a full solder-cup end configuration (C x C x C). Cast copper construction delivers the wall thickness and pressure rating expected in high-demand pressure piping systems. At 6.96 pounds, the fitting reflects the solid material mass typical of large-diameter cast copper. Licensed plumbers and pipefitters working on domestic water, hydronic heating, or commercial distribution systems will find this fitting suited to demanding pressure service installations.

This fitting is sized for large-diameter copper piping work, where a 4-inch main must transition to two 3-inch outlets or branch lines. Typical installation scenarios include commercial plumbing distribution headers, hydronic heating mains, and chilled water systems. The C x C x C end connections accept standard copper tube and are joined using appropriate flux and solder per applicable code. This tee is sold individually and is intended for professional installation in pressure-rated piping systems.

Key Features

• Cast copper construction provides consistent wall thickness and strength for pressure service
• Reducing configuration: 4-inch run with 3-inch x 3-inch branch and outlet connections
• C x C x C solder-cup ends compatible with standard copper tube on all three connections
• Pressure fitting designation indicates suitability for pressurized water and hydronic piping systems
• Single-piece cast body with no brazed or fabricated joints in the fitting itself

Compatibility

Designed as an OEM-style pressure fitting for use with standard copper tube in 3-inch and 4-inch pressure piping systems per applicable plumbing codes.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter following local plumbing codes and ASTM or ASME standards for solder-joint pressure fittings. Shut off and depressurize the supply line and drain the system before cutting into existing piping. Clean and flux all mating tube ends per fitting and solder manufacturer requirements before applying heat. Do not apply flame directly to the fitting body for extended periods, as overheating cast copper can compromise joint integrity.