Nibco Inc W01135D Cxf Adapter 1-1/4 in Solder Female Npt

Product Description

The NIBCO INC W01135D is a 1-1/4 inch copper-to-female (CxF) adapter fitting designed to transition a solder (sweat) connection to a female NPT threaded connection. The fitting features a solder cup end for a standard copper sweat joint and a female NPT threaded end for connection to threaded pipe or fittings. Manufactured to lead-free standards, the W01135D is suitable for potable water systems where lead-free compliance is required. Plumbers and pipefitters use this adapter when a copper tubing run must terminate at or connect to a threaded component such as a valve, pump, or fixture body.

This adapter is used in residential and light commercial plumbing systems wherever a copper sweat line must interface with a female NPT threaded fitting or component. Typical applications include connecting copper supply lines to threaded valves, water heaters, pumps, and other threaded plumbing equipment. The 1-1/4 inch size suits main supply lines, recirculation loops, and larger branch lines. It is sold in packages of 10 units, making it practical for contractors stocking job-site supplies.

Key Features

• Solder cup end accepts standard 1-1/4 inch copper tubing for a sweat joint
• Female NPT threaded end connects to male-threaded pipes, valves, or equipment
• Lead-free construction meets potable water and plumbing code requirements
• C603 product series — copper pressure fitting category
• Sold in a package quantity of 10 for convenient contractor use

Compatibility

Designed as an OEM-style replacement or standard installation fitting for 1-1/4 inch copper pressure piping systems requiring a transition from a solder connection to a female NPT threaded connection.

Installation Notes

Installation is performed by licensed plumbers in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off and depressurize the water supply and allow all piping to cool fully before beginning work. Clean and flux all copper surfaces before soldering, and apply thread sealant or PTFE tape to the male NPT thread being engaged in the female end. Do not over-tighten threaded connections, as copper fittings can crack under excessive torque.

Technical Specifications

• Size: 1-1/4 inches
• Connection Type: Solder Cup (C) x Female NPT (F)
• Lead-Free: Yes
• Product Series: C603
• Package Quantity: 10 EA
• Weight: 3.62 pounds

Standard Information

• Brand: NIBCO INC
• Manufacturer Part Number: W01135D