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Nibco C7073 90 degree cast copper elbow 1 inch

Nibco, Inc.

Nibco, Inc. C7073 90 Deg Elbow 1 In Cast Copper

SKU CH-HM8B-X135R MPN C7073

A cast-copper 90-degree elbow connects 1-inch tube to female NPT, rated 494 psi at 100°F and tested to ANSI B16.18

  • TypeDrain Components
  • MaterialHAWA
  • 90-degree turn routes pipe efficiently in tight spaces
  • Cast copper construction resists corrosion for long service life
  • 494 psi rating at 100 °F handles high-pressure demands
  • Operating range from -20 °F to 400 °F suits hot and cold systems
  • ANSI B 16.18 compliance ensures reliable fit and performance

1-Inch Cast Copper Elbow

The Nibco C7073 is a 90-degree elbow designed for drain and trap assemblies in plumbing systems. It connects a 1-inch tube to a 1-inch female NPT thread using a cast copper body rated for 494 psi at 100 degrees F. This fitting serves contractors and maintenance crews joining drainage lines in residential or light commercial installations.

Cast Copper Construction

The fitting uses HAWA copper alloy cast to meet ANSI B 16.18 standards for dimensional accuracy and material integrity. Its C x FNPT connection type allows a direct transition from tubing to threaded pipe without additional adapters. The material withstands a continuous temperature range from -20 to 400 degrees F, supporting hot-water drainage and seasonal temperature swings. The 1-1/8 inch outside diameter matches standard 1-inch copper tubing sizing.

Upgrading from Threaded or Plastic Fittings

This elbow replaces field-fabricated threaded assemblies or plastic drainage elbows where code requires copper or higher pressure tolerance. The jump is justified when the system operates near the 494 psi rating or when thermal cycling would degrade solvent-welded joints. It is not suited for installers needing press-connect or push-fit ends, or for systems requiring larger than 1-inch pipe diameters.

Highlights

  • 90-degree turn routes pipe efficiently in tight spaces
  • Cast copper construction resists corrosion for long service life
  • 494 psi rating at 100 °F handles high-pressure demands
  • Operating range from -20 °F to 400 °F suits hot and cold systems
  • ANSI B 16.18 compliance ensures reliable fit and performance

Specifications

TypeDrain Components
MaterialHAWA
BrandNibco
ModelC7073 1

Questions about this item

What pressure does the C x FNPT connection on this 90-degree elbow handle at 100 degrees F?

The cast copper elbow is rated for 494 psi at 100 degrees F, so the C x FNPT joint will hold that pressure when assembled correctly.

What tube and pipe size must the installation accommodate for this 1-inch fitting?

The elbow accepts a 1-inch tube with a 1-1/8-inch outside diameter and matches a 1-inch pipe fitting, so the rough-in must allow those dimensions.

How is the solder joint prepared, and what step do installers often skip?

Clean the tube end and fitting cup, apply flux, insert fully, then heat evenly until solder flows; the step often missed is removing all oxidation before fluxing.

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