Ndl Industries w1146 Copper Male Adapter 7/8x3/4 Mpt

Product Description

The NDL INDUSTRIES w1146 is a copper male adapter fitting designed to transition between a copper sweat connection and a male pipe thread connection. The sweat end accepts 7/8 inch copper tubing, while the threaded end measures 3/4 inch MPT. This fitting is used to join copper tubing to threaded pipe systems in a single, compact component. Licensed plumbers and HVAC technicians install this type of adapter when connecting copper refrigerant or water lines to threaded valves, equipment ports, or distribution manifolds.

This adapter is suited for residential and light commercial plumbing and HVAC applications where a direct copper-to-threaded transition is needed. Common install scenarios include connecting copper supply lines to threaded shutoff valves, boiler connections, and water heater ports. The C x MPT configuration is a standard fitting arrangement in hydronic, potable water, and general plumbing work.

Key Features

• Sweat inlet accepts 7/8 inch copper tubing for soldered connection
• 3/4 inch MPT outlet threads into female pipe thread fittings or equipment ports
• C x MPT configuration supports direct copper-to-threaded transitions
• Copper construction provides corrosion resistance in water and HVAC applications
• Compact single-piece design reduces connection points and potential leak paths

Compatibility

Designed as an OEM-style replacement and standard-use fitting for residential and light commercial plumbing and HVAC systems requiring a 7/8 inch sweat to 3/4 inch male pipe thread transition.

Installation Notes

Installation is performed by a licensed plumber or HVAC technician. Shut off water supply and relieve system pressure before cutting or opening any lines. The sweat end requires proper flux application, clean tubing, and a propane or MAP gas torch for soldering in accordance with local plumbing codes. Apply thread sealant tape or pipe dope to the MPT threads before making the threaded connection.

Technical Specifications

• Inlet Size: 7/8 inches (C sweat)
• Outlet Size: 3/4 inches MPT
• Connection Type: C x MPT (Sweat x Male Pipe Thread)
• Material: Copper

Standard Information

• Brand: NDL INDUSTRIES
• Manufacturer Part Number: w1146