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Copper return bend trap, 1-inch sweat fitting, wrot copper finish

Nibco, Inc.

Nibco, Inc. U638 1" Copper Return Bend Trap

SKU CH-YQ1J-4RZDW MPN U638

A 1-inch wrot-copper return bend with cup connections for sweat fitting in air, gas or potable-water lines, rated to 494 psi at 100 degrees F and 400 degrees F maximum temperature

  • Product typeDrain Components
  • Wrot copper construction resists corrosion for long service life
  • Sweat cup connections on both ends simplify installation
  • Handles 494 psi at 100 degrees F for high-pressure lines
  • Rated to 400 degrees F for hot water and steam applications
  • 1 inch copper tube size fits standard residential plumbing

Plumbing return bend for copper systems

This Nibco U638 is a 1-inch nominal copper return bend designed for sweat fitting installation. It suits residential and commercial plumbing carrying potable water, air or gases. The wrot copper construction handles a maximum operating pressure of 494 psi at 100 degrees Fahrenheit and temperatures up to 400 degrees Fahrenheit.

Verify tube size and joint method before purchase

Both ends accept 1-inch copper tube with a 1 1/8-inch outer diameter for sweat soldering. Confirm that your existing piping matches this diameter and that you have the tools and flux for a sweat joint. The fitting is not threaded, press-fit or push-to-connect, so alternative connection types will not work.

Replaces worn or misaligned return bends in copper

Use this bend when an existing return bend leaks, corrodes or needs reorientation during a remodel. The pressure and temperature ratings match standard copper plumbing requirements. It does not suit systems requiring threaded, compression or plastic pipe connections.

How it compares

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

Price $21.99
Cheaper than about 62% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameNibco
Model nameU638 1
Product typeDrain Components

Questions about this item

Does the U638 return bend include any pipe or flux in the box?

The fitting is supplied alone; copper tube, solder and flux must be purchased separately.

Which nominal size should I select for a 1 1/8-inch tube OD?

Choose the 1-inch nominal size, which matches the 1 1/8-inch outer diameter on both ends.

What does the 494 psi rating mean when the fitting is installed?

It indicates the maximum operating pressure at 100 Degrees F; the fitting can also handle temperatures up to 400 Degrees F.

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