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Straight copper coupling with cup and FNPT ends

Nibco, Inc.

Nibco, Inc. 903 2 Straight Copper Coupling Cup 2 in FNPT 2 in

SKU CH-1YZ4-61Z10

Straight copper adapter joining a 2 in cup sweat connection to a 2 in FNPT thread for air or potable water systems

  • Sweat-to-thread transition joins copper tube to FNPT pipe
  • Wrought C12200 copper resists corrosion in potable water systems
  • Rated for 5 psi at up to 400 °F service temperature
  • Meets ASME B16.29, ASTM B75 and ISO 9001 standards
  • Operates reliably from 20 °F to 400 °F ambient range

Straight Copper Adapter for Potable Water

This NIBCO 903 sweat fitting adapter joins a 2-inch copper tube to a 2-inch FNPT thread in a straight configuration. It is intended for installers working on potable water or compressed air systems where a reliable copper-to-threaded transition is required. The wrought copper body meets ASME B16.29 and ASTM B75 standards for material quality.

Pressure and Temperature Limits for Continuous

The fitting is rated for a maximum operating pressure of 5 psi and a maximum operating temperature of 400 degrees Fahrenheit. The minimum operating temperature is 20 degrees Fahrenheit. These limits apply to sustained service conditions rather than short-term peaks, so system designers must verify that normal operating parameters stay within this range.

Verify Tube Size and Thread Compatibility Before

Confirm that the existing copper tube has a 2-inch nominal size and a 2 1/8-inch outer diameter to match the cup end. Ensure the mating component provides a 2-inch FNPT thread for the other side. The fitting is manufactured to ISO 9001 quality standards using C12200 grade copper.

Highlights

  • Sweat-to-thread transition joins copper tube to FNPT pipe
  • Wrought C12200 copper resists corrosion in potable water systems
  • Rated for 5 psi at up to 400 °F service temperature
  • Meets ASME B16.29, ASTM B75 and ISO 9001 standards
  • Operates reliably from 20 °F to 400 °F ambient range

Specifications

BrandNibco

Questions about this item

How much heat can the Wrot Copper body of the 903 handle before it reaches its limit?

The fitting is rated for a maximum operating temperature of 400 degrees Fahrenheit and a minimum of 20 degrees Fahrenheit.

What pipe size and thread type must the existing plumbing have for the FNPT side to connect?

The FNPT side requires a 2 inch pipe with female national pipe thread for a proper seal.

Will the Cup end accept the 2 1/8 inch outer diameter copper tube I already have installed?

Yes, the Cup end is sized for a 2 inch copper tube size which corresponds to a 2 1/8 inch outer diameter.

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