Mueller Streamline ADP01010 Copper Adapter 5/8 X 3/4

Product Description

The MUELLER STREAMLINE ADP01010 is a wrot copper adapter fitting designed to transition between a 5/8 inch OD sweat connection and a 3/4 inch female NPT threaded port. The C x FPT configuration makes it a standard workhorse for connecting copper tubing runs to threaded pipe assemblies in plumbing and HVAC applications. Wrot copper construction ensures a dense, reliable base material well suited to soldering, providing a leak-resistant joint when properly fluxed and sweated. This fitting is installed by licensed plumbers and HVAC technicians working on residential and light commercial systems.

This adapter is used wherever a copper sweat line must terminate at a female threaded fitting — common in water supply rough-in, chilled water piping, refrigeration line connections, and equipment service connections. The 5/8 inch OD inlet is a standard ACR and plumbing tube size, and the 3/4 inch FPT outlet accommodates widely available threaded valves, unions, and equipment ports. It is suitable for both potable water and mechanical system applications within the pressure and temperature ratings of wrot copper.

Key Features

• Wrot copper construction for high-integrity brazed or soldered joints
• C x FPT end configuration transitions sweat copper to female NPT threads
• 5/8 inch OD sweat inlet pairs with standard ACR and plumbing tube sizes
• 3/4 inch female NPT outlet accepts common threaded valves and equipment fittings
• Mueller Streamline WC-402 style fitting for consistent OEM-matched dimensions

Compatibility

Designed as an OEM-style wrot copper adapter for plumbing and HVAC piping systems requiring a sweat-to-female-thread transition on 5/8 inch OD copper tubing.

Installation Notes

Installation should be performed by a licensed plumber or HVAC technician in accordance with applicable local plumbing codes and ASME B16.22 standards for wrought copper fittings. Shut off and depressurize the water or refrigerant system before beginning work. Clean tube ends and fitting sockets thoroughly and apply appropriate flux before sweating; do not overheat wrot copper fittings, as this can damage the fitting and degrade joint integrity. Thread connections should be sealed with PTFE tape or pipe dope rated for the service fluid.

Technical Specifications

• Connection Type: C x FPT (Sweat x Female NPT)
• Material: Wrot Copper
• Inlet Size: 5/8 inches OD
• Outlet Size: 3/4 inches FPT
• Shipping Weight: 1.0 pounds
• Shipping Dimensions: 2.0 x 2.0 x 1.0 inches

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: ADP01010