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Copper 45-degree DWV elbow, sweat fitting, 3-inch tube size

Nibco, Inc.

Nibco, Inc. 906 3 in Copper 45 Degree DWV Elbow

SKU CH-FQPX-E841V

A 3-inch copper DWV elbow with 45-degree sweep for drain, waste and vent lines, meeting ASME B16.29 and ASTM B75 standards

  • Directs flow at a 45° angle for smooth DWV routing
  • Sweat-cup ends on both sides accept 3 in copper tube (3 1/8 in OD)
  • Wrot copper construction handles up to 400 °F and 5 psi
  • Meets ASME B16.29 and ASTM B75 standards for code compliance
  • Manufactured under ISO 9001 quality system for consistent fit

3-inch copper DWV elbow

The Nibco 906 is a 45-degree sweep elbow made from wrought copper for drain, waste and vent systems. Both ends accept 3-inch copper tube with cup connections for sweat soldering. It meets ASME B16.29 and ASTM B75 standards.

Replaces sharper bends in vertical stacks

Use this fitting when a long-radius 90-degree turn would restrict flow or exceed space in a stack. The 45-degree angle reduces turbulence and fits tighter offsets without cutting additional pipe. The jump is worth it when fall per foot must stay consistent.

Suits plumbers running 3-inch copper DWV

Installers working to code on soil or vent lines sized at three inches will find the dimensions match directly. Builders needing other angles, reducing connections or press-fit ends should look at alternative fittings.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $23.99
Pricier than about 60% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameNibco

Questions about this item

What copper tube size and outer diameter does the 3 in elbow accept?

The fitting is sized for 3 in copper tube with a 3 1/8 in outer diameter on both cup connections.

How is the sweat fitting installed and what step is often missed?

Clean both tube ends and the cup interiors, apply flux, assemble, then heat evenly and feed solder until the joint is full; skipping thorough cleaning causes leaks.

What maintenance or replacement will the 45 degree DWV elbow need over time?

Inspect joints periodically for corrosion or drips; the wrot copper body itself requires no scheduled replacement if pressure stays within 5 psi and temperature within 400 Degrees F.

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