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Small copper adapter with threaded and smooth ends

Nibco, Inc.

Nibco, Inc. 604 1/2 copper adapter trap

SKU CH-BYT1-3J2GB MPN 604

A 1/2 inch copper adapter connects tubing to male pipe threads at up to 722 psi

  • Product typeDrain Components
  • Wrot copper construction resists corrosion and ensures durability
  • 722 psi maximum pressure at 100°F handles demanding plumbing systems
  • Operating range from -20°F to 400°F suits hot and cold applications
  • ASME/ANSI B16.22 compliance guarantees reliable performance standards
  • 1/2" nominal C x 1/2" MNPT connection fits standard copper tubing installations

Copper Adapter Trap for 1/2 Inch Lines

This Nibco 604 wrot copper adapter connects 1/2 inch nominal copper tube to a 1/2 inch male NPT thread. It suits residential and light commercial plumbing installations where a sweat-to-thread transition is required. The fitting is rated for temperatures from -20 to 400 degrees Fahrenheit and meets ASME/ANSI B 16.22 standards.

Pressure and Temperature Headroom

The adapter withstands a maximum pressure of 722 psi at 100 degrees Fahrenheit, providing ample margin for typical potable water and hydronic heating systems. At the upper temperature limit of 400 degrees Fahrenheit the allowable pressure drops, so designers must consult the applicable pressure-temperature charts for high-temperature service.

Replaces Threaded Brass or Dielectric Unions

Use this copper adapter instead of a threaded brass coupling when the system is all-copper and galvanic corrosion is a concern. The jump is worthwhile on new copper rough-ins or when retrofitting a threaded valve onto existing copper pipe, eliminating the need for a separate dielectric fitting.

How it compares

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

Price $1.57
Cheaper than about 98% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameNibco
Model name604 1/2
Product typeDrain Components

Questions about this item

Will the 1/2" MNPT thread on this Nibco 604 adapter seal reliably against my existing 1/2" female iron pipe fittings?

Yes, the 1/2" MNPT male pipe thread is cut to ASME/ANSI B 16.22 so it mates with standard 1/2" female iron pipe threads; use pipe-thread sealant or tape for a leak-free joint.

How can I confirm the wrot-copper sweat joint is solid after I solder the 5/8" OD tube into the 1/2" nominal C end?

Pressurise the line up to the 722 psi rating at 100 °F and inspect the solder fillet — a continuous, shiny ring with no voids means the joint is sound.

Does the box include flux, solder or thread tape, or must I buy those separately?

The package contains only the copper adapter; flux, solder and pipe-thread sealant are not included and must be purchased separately.

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