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Bronze 90-degree union elbow with cup and MNPT ends

Nibco, Inc.

Nibco, Inc. 707-4-6-LF 1/2 Union Elbow Bronze Cup MNPT

SKU CH-WS8S-D94YQ

Bronze 90-degree union elbow joins 1/2-inch copper tube to 1/2-inch male pipe thread for potable water at up to 577 psi and 200 degrees F

  • Product colorTransparent
  • Product typePipes, Valves & Fittings
  • Potable-water safe fitting certified to NSF/ANSI 61 and NSF/ANSI 372
  • Sweat-to-MNPT union elbow simplifies copper-to-thread transitions
  • Bronze body withstands 577 psi at 200 °F for demanding installations
  • 90-degree union design allows quick disassembly without cutting pipe
  • Manufactured under ISO 9001 quality system meeting ASME B 16.18 standards

Potable-Water Bronze Union Elbow

This 90-degree union elbow connects 1/2-inch copper tubing to a 1/2-inch male NPT thread for potable-water systems. The bronze body meets ASME B16.18 and NSF/ANSI 61 and 372 standards for safe drinking-water service.

Certified Materials and Pressure Rating

NSF/ANSI 61 and 372 certifications confirm lead-free compliance for potable water. The fitting withstands up to 577 psi at 200 degrees F, and ISO 9001 manufacturing ensures consistent quality across production lots.

Copper-to-Thread Transition with Union Access

The sweat cup accepts 1/2-inch copper tube while the male NPT end threads into valves or equipment. The union nut allows disassembly without cutting pipe, but the fixed 1/2-inch size cannot serve larger-diameter mains or high-flow commercial branches.

How it compares

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

Price $31.99
Cheaper than about 58% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameNIBCO
Product colorTransparent
Product typePipes, Valves & Fittings

Questions about this item

Will the bronze union elbow need periodic re-soldering or gasket replacement over time?

The sweat cup end creates a permanent solder joint, while the union nut allows disassembly without disturbing the pipe; no scheduled re-soldering or gasket changes are required.

What pressure limit will be reached first during continuous potable-water service?

The fitting is rated for a maximum operating pressure of 577 psi, which is the primary limit under sustained use.

How much heat can the bronze elbow handle when hot water circulates all day?

It is rated for a maximum operating temperature of 200 degrees F, suitable for typical hot-water recirculation loops.

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