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Copper reducing adapter, cylindrical, polished metallic finish

Nibco, Inc.

Nibco, Inc. 604R Reducing Adapter 1-1/2 x 1-1/4 In

SKU CH-A10N-TRBTW MPN 604R

A wrot-copper reducing adapter connects 1-1/2 inch tube to 1-1/4 inch pipe, rated to 408 psi at 100 degrees F and temperatures from -20 to 400 degrees F

  • TypeDrain Components
  • Reduces pipe size with C x MNPT wrot copper connection
  • Handles up to 408 psi at 100 degrees F operating pressure
  • Functions from -20 to 400 degrees F temperature range
  • Meets ASME/ANSI B16.22 standard for drain components
  • Wrot copper construction provides corrosion-resistant tube fitting material

Reducing adapter for copper pipe

This wrot copper reducing adapter connects 1-1/2 inch tube to 1-1/4 inch male NPT threads. It is designed for drain component assemblies in plumbing systems. The fitting meets ASME/ANSI B16.22 standards for wrought copper pressure fittings. It operates across a temperature range of -20 to 400 degrees Fahrenheit.

Suited for drain line transitions

Installers joining dissimilar pipe sizes in copper drain lines will use this adapter. It handles a maximum pressure of 408 psi at 100 degrees Fahrenheit. Systems requiring solder-joint connections on both ends or a different material such as PVC are not served by this C x MNPT configuration. Buyers needing a straight coupling without reduction should select another fitting.

Pressure rating defines the limit

The 408 psi rating at 100 degrees Fahrenheit determines whether this adapter matches the system design pressure. Exceeding this value risks joint failure even within the stated temperature range. Verify the operating pressure of the installation against this figure before specifying the part. No other specification overrides this constraint.

Highlights

  • Reduces pipe size with C x MNPT wrot copper connection
  • Handles up to 408 psi at 100 degrees F operating pressure
  • Functions from -20 to 400 degrees F temperature range
  • Meets ASME/ANSI B16.22 standard for drain components
  • Wrot copper construction provides corrosion-resistant tube fitting material

Specifications

TypeDrain Components
BrandNibco
Model604R 11/2x11/4

Questions about this item

What copper tube and pipe sizes does the 604R reducing adapter connect?

The adapter joins a 1-1/2 inch copper tube to a 1-1/4 inch male NPT pipe thread using a wrot copper C x MNPT fitting.

How is the 604R adapter installed, and what step is often missed?

Clean both the tube end and the fitting socket, apply flux, insert the tube fully, then solder the joint; the step often missed is ensuring the tube bottoms out before heating.

When should the 604R adapter be inspected or replaced?

Inspect the soldered joint periodically for leaks or corrosion, especially after pressure cycles near the 408 psi rating or temperature extremes between -20 and 400 degrees F.

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