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Bronze trap cup union, straight body, male NPT thread

Nibco, Inc.

Nibco, Inc. 7334LF-114 Bronze Trap Cup 1 1/4 in MNPT 1 1/4 in

SKU CH-3CJD-5ZA98 MPN 7334LF-114

Bronze sweat-union trap cup joins 1 1/4 in copper tube to 1 1/4 in MNPT for potable water at up to 351 psi and 200 °F

  • TypeDrain Components
  • MaterialHAWA
  • Bronze construction resists corrosion for long service life
  • Lead-free alloy meets NSF/ANSI 372 and 61 for potable water
  • Rated to 351 psi and 200 °F for demanding installations
  • Sweat cup to MNPT union simplifies copper-to-thread transitions
  • Certified to ASME B 16.18 and ISO 9001 quality standards

Bronze Straight Union for Potable Water

The NIBCO 7334LF-114 is a lead-free bronze sweat fitting union designed for potable water applications. It connects a 1 1/4 inch copper tube to a 1 1/4 inch MNPT thread. The fitting meets ASME B 16.18, NSF/ANSI 61, and NSF/ANSI 372 standards. It is rated for a maximum operating pressure of 351 psi and a maximum temperature of 200 degrees F.

Integration Requirements and System Impact

This straight union requires soldering on the cup side and threading on the MNPT side for installation. It bridges copper tubing and threaded pipe without additional adapters. The bronze construction provides corrosion resistance suitable for potable water systems. The fitting occupies minimal space in a straight-line configuration.

Replacement Context and Upgrade Value

This union replaces older brass or non-certified fittings that do not meet current lead-free requirements for drinking water. The upgrade is warranted when system pressure approaches 351 psi or when compliance with NSF/ANSI 61 and 372 is mandated. It is not intended for gas, compressed air, or non-potable fluid service.

Highlights

  • Bronze construction resists corrosion for long service life
  • Lead-free alloy meets NSF/ANSI 372 and 61 for potable water
  • Rated to 351 psi and 200 °F for demanding installations
  • Sweat cup to MNPT union simplifies copper-to-thread transitions
  • Certified to ASME B 16.18 and ISO 9001 quality standards

Specifications

TypeDrain Components
MaterialHAWA
BrandNibco
Model7334LF-114

Questions about this item

How long will the 351 psi pressure rating hold up under continuous service?

The fitting is rated for a maximum operating pressure of 351 psi at 200 °F, so the limit under sustained use is the combination of pressure and temperature staying within those values.

Does the bronze body run hot or make noise when water flows all day?

Bronze conducts heat, so the union will reach water temperature, but it has no moving parts and produces no noise during continuous flow.

What pipe and tube sizes must I already have to install this union?

You need 1 1/4 in MNPT pipe threads on one side and 1 1/4 in copper tube (1 3/8 in OD) for the sweat cup on the other.

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