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Small copper coupling with rolled stop, straight cylindrical form, smooth metallic finish

Nibco, Inc.

Nibco, Inc. U600RS 3/8 in Copper Rolled Tube Stop Coupling

SKU CH-TWGZ-VK77S MPN U600RS

A straight copper coupling joins two 3/8 in tubes for air, gas or potable water lines and handles up to 779 psi at 100 Degrees F

  • TypeDrain Components
  • MaterialHAWA
  • Wrot copper construction resists corrosion in potable water systems
  • Straight coupling joins two 3/8 in copper tubes with cup ends
  • Rated for 779 psi at 100 °F maximum operating pressure
  • Withstands temperatures up to 400 °F for hot-water lines
  • Sweat fitting design enables permanent leak-free soldered joints

Copper Tube Stop Coupling

This sweat fitting coupling joins two 3/8 inch nominal copper tubes in a straight line. It is designed for air, gases and potable water systems in residential and commercial plumbing. The wrot copper construction provides corrosion resistance for long service life.

779 psi Pressure Rating

The coupling withstands a maximum operating pressure of 779 psi at 100 degrees Fahrenheit. This single figure determines whether the fitting suits the pressure demands of the intended piping circuit. Exceeding this limit risks joint failure and leaks.

400 Degree Temperature Headroom

The fitting handles continuous temperatures up to 400 degrees Fahrenheit, covering most hot water and low pressure steam lines. It runs out of headroom in high temperature industrial steam or specialised heat transfer fluids above that threshold.

Highlights

  • Wrot copper construction resists corrosion in potable water systems
  • Straight coupling joins two 3/8 in copper tubes with cup ends
  • Rated for 779 psi at 100 °F maximum operating pressure
  • Withstands temperatures up to 400 °F for hot-water lines
  • Sweat fitting design enables permanent leak-free soldered joints

Specifications

TypeDrain Components
MaterialHAWA
BrandNibco
ModelU600RS 3/8

Questions about this item

What does the 779 psi rating mean for a typical plumbing job?

It means the coupling can handle up to 779 psi at 100 degrees Fahrenheit, well above normal residential supply pressure.

How does the sweat connection affect installation on 3/8 inch copper tube?

Each end is a cup fitting for 3/8 inch nominal tube with a 1/2 inch outer diameter, so you solder it directly to the pipe.

What clearance should I allow for the straight coupling body?

The straight coupling joins two tubes end-to-end in-line, so measure the installed length between the two solder joints.

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