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Bronze 90 degree elbow fitting with cup and MNPT ends

Nibco, Inc.

Nibco, Inc. 7074LF-114 90° Bronze Trap 1 1/4 in Cup x MNPT

SKU CH-NWHM-MYE2Q MPN 7074LF-114

Bronze 90-degree elbow joins 1 1/4-inch copper tube to MNPT, rated 351 psi at 400 °F and certified to ASME B16.18, NSF/ANSI 61 and 372

  • TypeDrain Components
  • Lead-free bronze construction meets NSF/ANSI 372 and NSF/ANSI 61 for safe potable water use
  • 90-degree elbow design enables tight directional changes in confined plumbing layouts
  • Sweat cup to MNPT transition connects 1-1/4 in copper tube directly to threaded pipe without adapters
  • Rated for 351 psi at 400 °F ensuring reliable performance in high-pressure hot-water systems
  • Manufactured to ASME B16.18 and ISO 9001 standards for consistent quality and dimensional accuracy

Potable Water Bronze Elbow

This 90 degree bronze elbow connects a 1 1/4 inch copper tube to a matching male NPT thread. It is built for potable water systems and meets ASME B 16.18, NSF/ANSI 61 and NSF/ANSI 372 standards. The fitting handles up to 351 psi and 400 degrees F. Installers who need a sweat to thread transition use this component.

Pressure and Temperature Limits

The bronze body is rated for a maximum operating pressure of 351 psi and a maximum temperature of 400 degrees F. These limits define the safe envelope for hot water and heating loops. Exceeding either value risks joint failure or material fatigue. Systems that run above these thresholds require a different fitting class.

Replaces Threaded or Flanged Transitions

This elbow replaces separate threaded adapters or flanged unions where a compact sweat to MNPT turn is needed. The jump is worth it when space is tight and a single certified fitting reduces leak paths. It does not suit installations that require a female thread, a different tube diameter or a straight coupling.

Highlights

  • Lead-free bronze construction meets NSF/ANSI 372 and NSF/ANSI 61 for safe potable water use
  • 90-degree elbow design enables tight directional changes in confined plumbing layouts
  • Sweat cup to MNPT transition connects 1-1/4 in copper tube directly to threaded pipe without adapters
  • Rated for 351 psi at 400 °F ensuring reliable performance in high-pressure hot-water systems
  • Manufactured to ASME B16.18 and ISO 9001 standards for consistent quality and dimensional accuracy

Specifications

TypeDrain Components
BrandNibco
Model7074LF-114

Questions about this item

Should I pick the 1 1/4 in cup × MNPT version or a different size?

This fitting is a 90-degree elbow with a 1 1/4 in copper cup on one end and 1 1/4 in MNPT threads on the other. Choose it when your pipe and thread sizes both match those dimensions.

What does the 351 psi rating mean once the elbow is installed in a potable-water line?

The bronze body is rated for 351 psi maximum operating pressure at up to 400 °F, so it will handle typical residential and commercial hot- and cold-water pressures with a wide safety margin.

Which standards does the ASME B16.18 and NSF/ANSI 61 listing actually cap in practice?

ASME B16.18 governs the dimensional tolerances of the copper cup joint, while NSF/ANSI 61 and 372 certify the bronze alloy for lead-free potable-water contact.

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