Nibco B032050 Cast Copper Pipe Adapter 1.5x2 in C X M

Product Description

The NIBCO B032050 is a cast copper pipe adapter designed to transition between a 1-1/2 inch copper sweat connection and a 2 inch male NPT threaded connection. It is a pressure-rated fitting used in potable water, hydronic heating, and general plumbing distribution systems. The C x M end configuration means one end accepts a soldered cup-to-pipe joint while the other end threads onto a female-threaded fitting or valve body. Licensed plumbers and pipefitters install this adapter when system design calls for a sweat-to-threaded transition point in copper piping runs.

This adapter is suited for residential and light commercial plumbing applications where a copper sweat line must terminate into or connect from a threaded component. Typical scenarios include connecting copper distribution lines to threaded valves, unions, or equipment inlets. The pressure fitting designation indicates it is rated for use in pressurized water supply and hydronic systems. It conforms to ASTM B584 and ISO standards, making it appropriate for code-compliant installations.

Key Features

• Cast copper construction provides corrosion resistance and long service life in wet piping systems
• C x M end connection enables a sweat-to-male-NPT transition in a single fitting
• Pressure fitting designation confirms suitability for pressurized water and hydronic lines
• Conforms to ASTM B584 and ISO standards for material and dimensional compliance
• Compact single-piece adapter reduces the need for multiple fittings at transition points

Compatibility

Designed as an OEM-style replacement or new-installation adapter for pressurized copper piping systems requiring a 1-1/2 inch sweat to 2 inch male NPT transition. Thread standard is MNPT.

Installation Notes

Installation is performed by a licensed plumber. Shut off water supply and depressurize the line before soldering or threading. Clean and flux the copper cup end properly before applying heat for a sound sweat joint. Apply thread sealant or PTFE tape to the male NPT threads before making up the threaded connection. Follow applicable IPC and local plumbing code requirements for pressure piping installations.