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

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.