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Copper rolled tube stop coupling, 3 inch nominal size

Nibco, Inc.

Nibco, Inc. 600RS 3 in Copper Rolled Tube Stop Coupling

SKU CH-S6A7-SSHPK MPN 600RS

A copper rolled tube stop coupling for 3 inch tube, rated 317 psi at 100 degrees F with a temperature range from -20 to 400 degrees F and compliant with ASME/ANSI B 16.22

  • TypeDrain Components
  • MaterialHAWA
  • Reliable leak-free joints from wrot copper construction
  • Handles up to 317 psi at 100°F for high-pressure systems
  • Operates from -20°F to 400°F across extreme temperatures
  • Meets ASME/ANSI B16.22 standards for code compliance
  • Rolled tube stop ensures precise insertion depth every time

3-Inch Copper Rolled Tube Stop Coupling

This Nibco 600RS coupling joins two 3-inch copper tubes with a rolled stop that centres each pipe during assembly. It is made from wrought copper and carries an ASME/ANSI B 16.22 listing for drainage installations. Plumbers fitting residential or light-commercial drain lines will find the C x C solder connection familiar and code-compliant. The fitting ships new and ready for immediate installation.

Pressure and temperature performance under

The coupling is rated for a maximum working pressure of 317 psi at 100 Degrees F and remains serviceable across a continuous temperature range of -20 Degrees to 400 Degrees F. These limits apply to steady-state conditions rather than brief spikes, so the joint maintains integrity during prolonged hot-water discharge or seasonal thermal cycling. The wrought copper construction resists creep deformation within the stated envelope. No higher pressure or temperature rating is published for this model.

Thermal behaviour, noise

As a passive solder-joint fitting, the coupling draws no electrical power and produces no operational noise. Its copper body conducts heat evenly along the joint, preventing localised hot spots when draining high-temperature waste. Expansion and contraction occur uniformly with the surrounding pipework, so no additional mechanical stress is introduced during normal thermal cycles. The fitting adds negligible flow restriction to the drainage system.

Highlights

  • Reliable leak-free joints from wrot copper construction
  • Handles up to 317 psi at 100°F for high-pressure systems
  • Operates from -20°F to 400°F across extreme temperatures
  • Meets ASME/ANSI B16.22 standards for code compliance
  • Rolled tube stop ensures precise insertion depth every time

Specifications

TypeDrain Components
MaterialHAWA
BrandNibco
Model600RS 3

Questions about this item

How much pressure and heat can the 3 in copper coupling handle during continuous service?

The coupling is rated for 317 psi at 100 degrees F and operates from -20 to 400 degrees F, so it withstands typical residential hot-water and drainage conditions.

What pipe size and connection type must the existing plumbing have for this C x C fitting?

It requires 3 inch nominal copper tube with an outside diameter of 3-1/8 in and sweat solder connections on both ends.

Will this ASME B16.22 coupling join cleanly to older wrot copper pipe already in the walls?

Yes, the B16.22 standard ensures dimensional compatibility with existing wrot copper tube of the same nominal size.

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