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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

  • 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.

Highlights

  • 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

Specifications

TypeDrain Components
BrandNibco
ModelU638 1

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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