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Bronze 90-degree reducing elbow with cup and male thread ends

Nibco, Inc.

Nibco, Inc. 707-4R-LF 1/2X3/4 Elbow Bronze Cup 1/2 in MNPT 3/4 in

SKU CH-MWXJ-1VZ90

Bronze reducing elbow joins 1/2 in copper tube to 3/4 in male pipe thread for potable water at 577 psi and 200 Degrees F

  • Reduces lead exposure with NSF/ANSI 372 compliant bronze
  • Handles high-pressure systems up to 577 psi rating
  • Resists heat in hot water lines to 200 degrees F
  • Meets potable water safety standards NSF/ANSI 61
  • Changes direction in tight spaces with 90 degree elbow

Potable Water Elbow Fitting

This 90-degree reducing elbow connects a 1/2-inch copper tube to a 1/2-inch MNPT thread. The bronze body meets NSF/ANSI 61 and NSF/ANSI 372 for potable water use. It is rated for a maximum operating pressure of 577 psi and a maximum temperature of 200 degrees F. Installers use it to change direction in residential and commercial supply lines.

Sweat-to-Thread Transition Upgrade

The fitting replaces a separate coupling and elbow when joining copper tubing to threaded pipe. The sweat cup on side A and MNPT thread on side B combine two connections in one body. The jump is worth it when a compact, code-compliant directional change is required at a transition point. ASME B16.18 compliance supports inspection approval.

Bronze Body Capacity and Limits

The bronze construction handles continuous hot and cold water service up to the rated 200 degrees F and 577 psi. It comfortably serves standard municipal supply pressures and typical water heater temperatures. Headroom diminishes in high-pressure booster systems or steam applications exceeding the stated limits. The 90-degree bend adds friction loss that designers must account for in long runs.

Highlights

  • Reduces lead exposure with NSF/ANSI 372 compliant bronze
  • Handles high-pressure systems up to 577 psi rating
  • Resists heat in hot water lines to 200 degrees F
  • Meets potable water safety standards NSF/ANSI 61
  • Changes direction in tight spaces with 90 degree elbow

Specifications

BrandNibco

Questions about this item

What copper tube size does the sweat cup end of the NIBCO 707-4R-LF accept?

The cup end accepts a 1/2 in copper tube size, which has a 5/8 in outer diameter, and meets ASME B16.18 and NSF/ANSI 61 standards for potable water.

How is the reducing elbow joined to the copper tube and the threaded pipe?

The cup end is soldered to the 1/2 in copper tube, while the MNPT end threads onto a 1/2 in female pipe thread; use lead-free solder and compatible thread sealant for potable water.

What ongoing checks does the bronze elbow require after installation?

Inspect joints periodically for leaks or corrosion; the bronze body is rated to 577 psi and 200 Degrees F, and complies with NSF/ANSI 372 lead-free requirements for potable systems.

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