Nibco 9405555 Sweat Fitting Adapter 2-1/2 in Cup X 2-1/2 in Flange Wrot Copper

Product Description

The NIBCO 9405555 is a wrot copper sweat fitting adapter designed for plumbing systems that require a reliable transition from copper tubing to a flanged pipe connection. This adapter features a 2-1/2 inch cup connection on one end and a 2-1/2 inch flange on the other, making it suitable for connecting copper tube to flanged equipment, valves, pumps, and piping systems. It is manufactured from C12200 wrot copper, a high-purity phosphorus-deoxidized copper alloy known for its excellent solderability, corrosion resistance, and long service life in potable water applications. The cup end accepts standard 2-1/2 inch copper tubing and is joined using heat and solder for a permanent, leak-tight sweat connection. The flanged end allows for bolted connections with easy disassembly for future inspection, cleaning, or system modification. This type of fitting is widely used by licensed plumbers, mechanical contractors, and commercial plumbing technicians on water supply systems, hydronic heating systems, and industrial process piping. The fitting meets low-lead content standards, making it compliant for use in drinking water systems under NSF/ANSI/CAN-61. It also conforms to ASME/ANSI B16.22 and MSS SP-104 standards, ensuring dimensional accuracy and pressure performance. The flange outside diameter measures 7 inches with a thickness of 5/8 inches and includes 4 bolt holes, each with a 3/4 inch diameter. The fitting handles a temperature range of -20 degrees Fahrenheit to 275 degrees Fahrenheit, covering most commercial and residential hydronic and domestic water applications. Manufactured in the USA, this copper flange adapter is a dependable choice for trade professionals who need a code-compliant, pressure-rated copper sweat flange fitting.

• Cup x flange configuration allows direct sweat connection of 2-1/2 inch copper tubing to flanged equipment or piping
• C12200 wrot copper construction provides superior corrosion resistance and durability in potable water systems
• Compliant with NSF/ANSI/CAN-61, ASME/ANSI B16.22, and MSS SP-104 for use in drinking water and pressure-rated applications

Product Highlights

The NIBCO 9405555 wrot copper sweat flange adapter offers a code-compliant, low-lead solution for connecting 2-1/2 inch copper tube to flanged systems, delivering reliable performance across a wide temperature range in potable water and commercial plumbing applications.

Product Information

Standard Information

• Brand: NIBCO
• Manufacturer Part Number: 9405555

Technical Specifications

• Fitting Shape: Flange
• Fitting Material: C12200 Wrot Copper
• Temperature Range: -20 F to 275 F
• Connector Type: Adapter
• Compatible Tube Material: Copper
• Side A Connection: Cup
• Side A Compatible Tube Outer Diameter: 2-1/2 inches
• Side A Copper Tube Size: 2-1/2 inches
• Side B Connection: Flange
• Side B Pipe Size: 2-1/2 inches
• Flange Thickness: 5/8 inches
• Flange Outside Diameter: 7 inches
• Bolt Hole Diameter: 3/4 inches
• Number of Bolt Holes: 4
• For Media Type: Potable Water
• Standards: ASME/ANSI B16.22; MSS SP-104; NSF/ANSI/CAN-61
• Country of Origin: USA