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Bronze 90-degree sweat elbow with copper cup and male pipe thread

Nibco, Inc.

Nibco, Inc. 7074LF-34 90° Elbow Trap

SKU CH-NKPB-14164 MPN 7074LF-34

A 90-degree sweat elbow joins 3/4-inch copper tube to male pipe threads for potable water systems

  • Product typeDrain Components
  • Main materialHAWA
  • Lead-free bronze meets NSF/ANSI 372 for safe potable water
  • 466 psi rating handles high-pressure supply lines
  • 200 °F maximum temperature suits hot-water systems
  • 90 ° elbow redirects flow in tight spaces
  • Sweat-to-MNPT connection joins copper to threaded pipe

90-Degree Bronze Elbow Fitting

This sweat-fitting elbow connects 3/4 in copper tube to a 3/4 in male NPT thread in potable-water systems. It is made from low-lead cast bronze rated to 466 psi and 200 degrees F. The fitting meets ASME B16.18, NSF/ANSI 61 and NSF/ANSI 372 standards. It suits residential and commercial plumbing installations.

Installers needing cup-to-MNPT transition

The fitting serves plumbers who must join copper tubing to threaded pipe at a right angle. It is not suited for drain-waste-vent lines or high-temperature hydronic loops beyond the rated limits. Buyers requiring press, push-fit or flare connections should select a different fitting style.

Cup x MNPT 3/4 in connection

The critical specification is the combination of a 3/4 in copper tube cup on one end and a 3/4 in male NPT thread on the other. This exact interface determines whether the elbow matches the piping layout. Verify both sides before purchase.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 78% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameNibco
Model name7074LF-34
Product typeDrain Components
Size & build
Main materialHAWA

Questions about this item

Does the bronze elbow reach the 200 Degrees F limit during continuous hot-water circulation?

The fitting is rated for a maximum operating temperature of 200 Degrees F, so continuous circulation at or below that temperature stays within specification.

What pipe and tube sizes must already be in place for the 3/4 in copper sweat and 3/4 in MNPT connections?

You need 3/4 in copper tube with a 7/8 in outer diameter for the sweat side and 3/4 in male NPT threads on the mating pipe for the threaded side.

Will the ASME B 16.18 and NSF/ANSI 61 certifications on this elbow match older copper and bronze fittings already installed?

Yes, the elbow meets ASME B 16.18 and NSF/ANSI 61, the same standards that govern most existing potable-water copper and bronze fittings.

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