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Bronze 90-degree vent elbow with cup connections

Nibco, Inc.

Nibco, Inc. 705D 3/4 in Bronze Vent Elbow bathware

SKU CH-5H16-28XGF

Bronze 90-degree vent elbow joins 3/4 in copper tube at 466 psi and 400 °F

  • Product colorTransparent
  • Product typePipes, Valves & Fittings
  • Bronze construction resists corrosion in air and non-potable water systems
  • 90-degree vent elbow directs flow efficiently in tight plumbing layouts
  • Rated for 466 psi at 200 degrees F for reliable high-pressure performance
  • Withstands temperatures up to 400 degrees F for demanding hot-water applications
  • Sweat cup connections on both ends simplify copper tube installation

3/4 in Bronze Vent Elbow

The Nibco 705D is a sweat-fitting elbow made from bronze for copper tubing. It joins two 3/4 in nominal tubes with 7/8 in outer diameters using cup-to-cup connections. The fitting forms a 90 degree turn rated for 466 psi at 200 Degrees F and up to 400 Degrees F maximum operating temperature.

Installers needing a 90 degree copper turn

This elbow suits plumbers routing 3/4 in copper lines for air or non-potable water systems where a vented 90 degree bend is required. It does not serve potable water lines, threaded pipe networks, or installations needing a straight coupling or a different angle.

90 degree vent elbow shape

The single specification that decides fit is the specific fitting shape: a 90 degree vent elbow. If the design calls for a standard 90 elbow without the vent feature, a different fitting must be chosen.

How it compares

Measured against everything we stock in Bath Accessories & Soap Dispensers, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 90% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameNIBCO
Product colorTransparent
Product typePipes, Valves & Fittings

Questions about this item

What copper tube size does the 3/4 in vent elbow accept?

The elbow accepts 3/4 in copper tube on both ends, with a 7/8 in outer diameter for each cup connection.

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

Clean and flux the 7/8 in tube ends, slide them fully into each cup, then apply even heat around the joint until solder flows completely around the 90 degree bend.

When should the bronze vent elbow be inspected or replaced?

Inspect the joint annually for leaks or corrosion, especially after the system reaches 200 Degrees F, and replace if the bronze shows pitting or the solder seal fails.

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