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Copper 90-degree drop elbow with sweat cup and fitting ends

Nibco, Inc.

Nibco, Inc. 9072 Copper 90 Degree Drop Elbow

SKU CH-RN02-H4M8P

A 90-degree copper drop elbow connects 3-inch waste lines with cup-to-fitting sweat joints rated to 400 degrees F

  • Sweat connection simplifies copper pipe installation
  • 90-degree drop elbow redirects flow in waste lines
  • Wrot copper construction resists corrosion at 400 degrees F
  • Meets ASME B16.29 and ASTM B75 standards
  • ISO 9001 certified manufacturing ensures consistent quality

Copper 90° Drop Elbow 3

The NIBCO 9072 is a sweat fitting elbow designed for waste line applications. It connects a 3 inch copper tube to a 3 inch fitting using cup and FTG ends. The wrot copper construction meets ASME B 16.29 and ASTM B75 standards for reliable plumbing installations.

Thermals and pressure rating

The elbow withstands a maximum operating temperature of 400 Degrees F and a maximum operating pressure of 5 psi. These limits suit standard drainage and waste systems where high pressure is not present. The copper material handles thermal cycling without degradation.

3 inch copper tube compatibility

This fitting matches 3 inch nominal copper tube size with a 3 1/8 inch outer diameter on both ends. It is not intended for supply lines or high pressure hydronic systems. Installers needing a different angle or connection type must select an alternative fitting.

Highlights

  • Sweat connection simplifies copper pipe installation
  • 90-degree drop elbow redirects flow in waste lines
  • Wrot copper construction resists corrosion at 400 degrees F
  • Meets ASME B16.29 and ASTM B75 standards
  • ISO 9001 certified manufacturing ensures consistent quality

Specifications

BrandNIBCO

Questions about this item

How do I sweat the 3 in copper drop elbow without overheating the joint?

Clean both the 3 1/8 in tube ends and the cup fitting, apply flux, assemble, then heat evenly with a propane torch until solder flows into the joint; avoid prolonged heat that can anneal the wrot copper.

Will the wrot copper elbow need replacement due to corrosion or scaling?

Wrot copper resists corrosion in normal waste lines; inspect annually for green patina or pitting at the sweat joints and replace only if leakage appears.

At what temperature does the fitting reach its pressure limit during continuous hot-water flow?

The elbow is rated for 5 psi up to 400 Degrees F; sustained temperatures above that level will exceed the ASME B16.29 pressure rating first.

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