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Bronze 90-degree vent elbow with cup connections on both ends

Nibco, Inc.

Nibco, Inc. 705D-LF 1 in Vent Elbow Low-Lead Bronze C x C

SKU CH-4M50-5KPE5

A 90-degree low-lead bronze sweat elbow joins 1-inch copper tubes for potable water at up to 395 psi and 200°F, meeting ASME B16.18, NSF/ANSI 61 and 372

  • Low-lead bronze meets NSF/ANSI 372 for potable water
  • 90-degree vent elbow directs flow in tight copper runs
  • Sweat cup-to-cup joints fit 1 in copper tube (1 1/8 in OD)
  • Rated 395 psi at 200 °F per ASME B16.18
  • ISO 9001 manufacturing ensures consistent fitting quality

Potable-water vent elbow

The NIBCO 705D-LF is a 90-degree vent elbow cast from low-lead bronze for potable-water systems. It connects two 1-inch copper tubes using cup-to-cup sweat joints on both ends. The fitting meets ASME B 16.18, NSF/ANSI 61 and NSF/ANSI 372 standards for safe drinking-water use.

Pressure and temperature headroom

Rated to 395 psi maximum operating pressure and 200 degrees F maximum operating temperature, the elbow handles typical residential and light-commercial hot and cold water lines with margin. It is not suited for steam service or systems that exceed either limit.

Bronze body and sweat connections

The low-lead bronze construction resists dezincification and corrosion in chlorinated supplies while satisfying lead-free requirements. Cup ends require soldering, so installers need flux, solder and a torch; no threaded adapters or press tools are involved. ISO 9001 certification indicates consistent manufacturing control.

Highlights

  • Low-lead bronze meets NSF/ANSI 372 for potable water
  • 90-degree vent elbow directs flow in tight copper runs
  • Sweat cup-to-cup joints fit 1 in copper tube (1 1/8 in OD)
  • Rated 395 psi at 200 °F per ASME B16.18
  • ISO 9001 manufacturing ensures consistent fitting quality

Specifications

BrandNIBCO

Questions about this item

Will the 1 in copper tube size and 1 1/8 in outer diameter match my existing copper piping without adapters?

Yes, the fitting is made for 1 in copper tube with a 1 1/8 in outer diameter on both cup ends, so it solders directly to standard Type K, L or M copper pipe of the same size.

How can I verify the joint is sound after soldering the 90 degree vent elbow?

Pressurise the system up to the 395 psi rating and inspect each sweat joint for leaks; a tight, leak-free joint at test pressure confirms the installation meets the ASME B16.18 standard.

Does the box contain flux, solder or any installation hardware, or must I buy them separately?

The package contains only the low-lead bronze vent elbow certified to NSF/ANSI 61 and NSF/ANSI 372; flux, lead-free solder and cleaning tools are not included and must be purchased separately.

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