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Nibco U604 2-inch copper adapter trap, cylindrical brass-coloured fitting with threaded and smooth ends

Nibco, Inc.

Nibco, Inc. U604 2" Copper Adapter Trap

SKU CH-BQQV-436X1 MPN U604

Copper adapter trap connects 2-inch tube to male NPT threads for drainage systems

  • Product typeDrain Components
  • 2" copper adapter connects drain lines reliably
  • Male NPT threads allow secure pipe connections
  • Copper construction resists corrosion for long service
  • Recyclable material supports sustainable plumbing installations
  • Adapter fitting simplifies transitions between pipe types

Copper Drain Adapter for 2 Inch Lines

The Nibco U604 connects a 2 inch copper tube to a 2 inch male NPT thread. It suits plumbers and contractors joining dissimilar pipe materials in drainage systems. The adapter provides a reliable transition point for copper installations. Its construction supports standard drain, waste and vent applications.

Thermal Performance and Power Considerations

Copper construction conducts heat efficiently through the fitting wall. The material resists corrosion and handles typical drain temperatures without degradation. No electrical power or active cooling is involved in this passive component. Joint integrity depends on proper soldering or brazing technique.

Installation Requirements and System Integration

The fitting requires a 2 inch copper tube end prepared for sweat connection. A compatible 2 inch male NPT threaded component is needed on the opposite side. Solder, flux and a torch are necessary consumables not included. The adapter frees the builder from using separate reducing bushings or transition couplings.

How it compares

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

Price $13.99
Cheaper than about 76% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameNibco
Model nameU604 2
Product typeDrain Components

Questions about this item

How is the 2-inch copper adapter installed onto the pipe?

Clean the tube end and fitting, apply flux, insert the tube fully, then heat evenly with a propane torch until solder flows around the joint; the step often missed is letting the joint cool naturally without moving it.

What maintenance will the U604 adapter need over time?

Periodically inspect the soldered joint and threads for green corrosion or leaks; re-solder or apply pipe-thread sealant if seepage appears, and replace the fitting if the copper wall shows pitting.

What limit appears first when the adapter sees continuous hot-water flow?

The copper will expand and soften at sustained temperatures above its annealing point, so the first limit is thermal cycling that can fatigue the solder joint before the tube itself fails.

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