Mueller Streamline w01479 Wrot Copper Adapter Fitting Ftg X Mpt 1-1/2 Inches

Product Description

The Mueller Streamline W01479 is a wrot copper adapter fitting designed for above-ground potable water supply and pressurized plumbing systems. It features a Fitting (FTG) male solder end on one side and a Male Pipe Tapered Thread (MPT/NPT) end on the other, both sized at 1-1/2 inches. This configuration allows plumbers and pipefitters to transition seamlessly between a copper solder-joint connection and a threaded pipe connection in a single fitting. The FTG end accepts a standard copper pipe or fitting socket, while the MPT end threads directly into a female-threaded valve, fitting, or equipment port. This type of adapter is commonly used when connecting copper water supply lines to threaded valves, manifolds, water heaters, pumps, or other plumbing components that require a male NPT thread entry point. Wrot copper construction means the fitting is formed by working the copper material, resulting in a dense, strong grain structure with excellent corrosion resistance and long service life. Wrot copper fittings are the preferred choice for residential and commercial plumbing installations where reliability and leak-free performance are critical. The W01479 meets NSF 61G certification, confirming it is safe for contact with potable drinking water. It also conforms to multiple ASME standards covering solder-joint and threaded copper fittings, ensuring dimensional accuracy and compatibility with standard copper pipe systems. At 0.49 pounds, the fitting is sturdy yet easy to handle during installation. Mueller Streamline has been a trusted name in copper solder-joint fittings for over 80 years, and this adapter reflects that legacy of precision manufacturing and consistent quality. It is a reliable solution for plumbing professionals working on water supply rough-in, retrofit, or repair projects.

• FTG (male solder) x MPT (male NPT thread) adapter — 1-1/2 inches on both ends
• Wrot copper construction for superior strength, corrosion resistance, and long service life
• NSF 61G certified for potable water contact and compliant with multiple ASME standards

Product Highlights

The Mueller Streamline W01479 wrot copper adapter fitting provides a reliable FTG-to-MPT transition for 1-1/2 inch potable water supply systems, meeting NSF 61G and ASME dimensional standards for professional plumbing installations.

Product Information

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: W01479

Technical Specifications

• Material: Wrot Copper
• Weight: 0.49 pounds
• End Type: FTG - Fitting (Male Solder)
• End Size: 1-1/2 inches
• Second End Type: MPT - Male Pipe Tapered Thread (NPT)
• Second End Size: 1-1/2 inches
• Standards: NSF 61G, ASME B16.15, ASME B16.18, ASME B16.22, ASME B16.24, ASME B16.50, ASME B1.20.1