Mueller Streamline a11442nl 90 Elbow with Union C X Mpt 1/2 Inches

Product Description

The Mueller Streamline A11442NL is a 90-degree elbow with union in a cup by male pipe tapered thread (C x MPT) configuration, sized at 1/2 inches. This fitting is cast from a lead-free brass alloy, making it a reliable choice for potable water supply systems where health and safety standards must be met. The union feature built into the elbow allows for easier disconnection and reconnection during repairs or modifications, saving time on the job without cutting or disturbing the surrounding piping. Plumbers and pipefitters use this type of fitting to make a directional change in copper pipe runs while also providing a convenient service point in the line. The solder cup end accepts standard 1/2-inch copper pipe, which is sweated in place using common soldering techniques, while the male NPT threaded end connects directly to female-threaded valves, fixtures, or other threaded components. Mueller Streamline has been a recognized name in copper solder-joint fittings for over 80 years, with a reputation built on tight dimensional tolerances and consistent material quality. The A11442NL is manufactured to meet multiple ASME standards including B16.15, B16.18, B16.22, B16.24, B16.50, and B1.20.1, ensuring compatibility and performance across commercial and residential plumbing applications. Above-ground potable water supply systems are the primary intended use, though the cast brass construction also holds up well in general-purpose pressure piping applications. At 0.30 pounds, this compact fitting is easy to handle and stock on the truck. Trade professionals who work daily with copper sweat fittings, NPT adapters, and union connections will find this elbow a dependable addition to any repair or new-installation job.

• Lead-free cast brass alloy construction meets potable water safety requirements
• Built-in union allows for easy disconnection without cutting pipe
• Meets ASME B16.15, B16.18, B16.22, B16.24, B16.50, and B1.20.1 standards

Product Highlights

The Mueller Streamline A11442NL combines a 90-degree directional change with a union connection in a single lead-free brass fitting, giving plumbers a practical solution for potable water supply lines that may require future service access.

Product Information

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: A11442NL

Technical Specifications

• Material: Lead-Free Cast Brass Alloy
• Weight: 0.30 pounds
• End Type: C - Cup (Female Solder)
• End Size: 1/2 inches
• Second End Type: MPT - Male Pipe Tapered Thread (NPT)
• Second End Size: 1/2 inches
• Standards: ASME B16.15, ASME B16.18, ASME B16.22, ASME B16.24, ASME B16.50, ASME B1.20.1