1-1/2 inch x 1 inch Copper Reducing Adapter Copper x Male

1-1/2 inch x 1 inch Copper Reducing Adapter – Sweat x MIP, Lead-Free Copper

The 1-1/2 inch x 1 inch Copper Reducing Adapter provides a transition between a nominal copper tube size and a male-threaded iron pipe size. Commonly used in water distribution systems, this fitting features a female solder (sweat) socket on the large end and a male NPT outlet on the reduced end, supporting dissimilar connection types in space-constrained or retrofit applications.

Manufactured from lead-free wrought copper in compliance with NSF/ANSI 61 and 372, this adapter is designed for soldered connections to copper tubing and threaded engagement with valves, fittings, or fixtures. It is suitable for hot and cold potable water, hydronic heating, and other low- to medium-pressure systems.

Product Features

• ✅ Connection Type: Copper Solder Cup (1-1/2 inch) x Male NPT (1 inch)
• ✅ Material: Lead-free copper alloy (compliant with SDWA Section 1417)
• ✅ Pressure Rating: 200 PSI at 250°F when installed per ASTM B88 specifications
• ✅ Manufacturing Standard: Fabricated to ASME B16.22 dimensions for reliable joint integrity
• ✅ Corrosion Resistant: Suitable for both above-ground and in-wall installations in compliant piping systems

Installation Notes

Prepare copper tube and sweat socket using appropriate cleaning and fluxing procedures. Apply lead-free solder using approved techniques and maintain alignment during cooling. Threaded end should be sealed using PTFE tape or pipe thread sealant suitable for potable water systems. Avoid over-torquing during threaded connection to prevent damage to mating components.

Applications

This reducing adapter is commonly installed in potable water supply lines, commercial distribution loops, mechanical equipment tie-ins, and zone manifold connections where pipe diameter transitions and mixed connection types are required. Compatible with both Type L and M copper tubing.

Regulatory Compliance

Meets requirements for lead-free plumbing components under the U.S. Safe Drinking Water Act (SDWA) and is certified under NSF/ANSI 61 and 372. Approved for use in all 50 states for domestic water applications.

The 1-1/2 inch x 1 inch Copper Reducing Adapter offers reliable mechanical performance and code-compliant installation flexibility for solder-to-thread transitions in pressurized copper systems.