Mueller Streamline CO45STLFTGC1 Copper 45 Deg Street Elbow

Product Description

The MUELLER STREAMLINE CO45STLFTGC1 is a 1-inch copper 45-degree street elbow configured with a fitting-end (Ftg) inlet and a sweat-cup (C) outlet. Street elbows combine a male fitting end on one side and a female cup end on the other, eliminating the need for a separate coupling when changing direction in a copper line. This fitting is used by plumbers and HVAC technicians to route copper tubing at a 45-degree angle within tight spaces. It is soldered in place using standard lead-free solder and flux, meeting typical potable-water and refrigerant-line installation requirements.

This street elbow is suited for residential and light commercial copper piping systems where a 45-degree directional change is required without adding extra fittings. Common applications include domestic water supply lines, hydronic heating runs, and refrigerant copper line sets. The Ftg x C configuration is particularly useful when connecting directly into an existing sweat fitting outlet, saving space and reducing joint count in the assembly.

Key Features

• 45-degree street elbow geometry reduces joint count versus a standard elbow-plus-coupling configuration
• Ftg x C end configuration for direct sweat-soldering into copper tubing systems
• 1-inch nominal size fits standard 1-inch copper tube OD
• Copper construction provides corrosion resistance and long service life in wet environments
• Compatible with lead-free solder for potable water code compliance

Compatibility

Designed as an OEM-style replacement and standard-use fitting for 1-inch copper sweat piping systems in plumbing and HVAC applications.

Installation Notes

Installation is performed by licensed plumbers or HVAC technicians trained in sweat-soldering copper fittings. Shut off the water supply or isolate the refrigerant circuit and relieve system pressure before cutting into any existing line. Clean and deburr tube ends, apply appropriate lead-free flux, and solder with a lead-free alloy per local plumbing code requirements such as IPC or IFGC guidelines. Allow the joint to cool fully before restoring system pressure and inspecting for leaks.

Technical Specifications

• Material: Copper
• Nominal Size: 1 inch
• Angle: 45 degrees
• End Connection: Ftg x C (Fitting x Sweat Cup)
• Type: Street Elbow

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: CO45STLFTGC1