Nibco Inc W01870D Copper Tube Cap 1 Inch Lead-free

Product Description

The NIBCO INC W01870D is a 1-inch copper tube cap designed to seal the open end of copper pipe or tubing. It uses a solder cup connection, allowing the fitting to be sweated onto the pipe end using standard soldering techniques. This fitting is manufactured lead-free, making it suitable for use in potable water systems where lead-free compliance is required. Plumbers and pipefitters install this cap during system testing, when capping off an unused branch, or when completing a final installation. Sold in a package of 10 units, it is a practical stocking item for service vans and job sites alike.

This cap is used in residential and light commercial plumbing systems wherever a copper tubing run needs to be terminated cleanly. Common applications include capping supply lines during pressure testing, sealing off stub-outs for future fixture connections, and closing off abandoned or decommissioned pipe runs. Its solder cup design provides a permanent, pressure-rated seal consistent with standard sweat-joint plumbing practice.

Key Features

• Fits 1-inch copper pipe or tubing end for a clean, sealed termination
• Solder cup connection allows standard sweat-soldering installation
• Lead-free construction meets potable water system requirements
• Sold in a package of 10 units for convenient stocking
• Permanent seal suitable for pressure-tested systems

Compatibility

Designed as an OEM-style replacement and standard-use fitting for 1-inch copper tube and pipe systems following ASTM B88 tubing dimensions commonly used in residential and commercial plumbing.

Installation Notes

Installation is performed by licensed plumbers using standard sweat-soldering tools including a torch, flux, and lead-free solder. Shut off and drain the water supply before soldering, and ensure the pipe end is clean, deburred, and dry prior to applying flux. Follow applicable local plumbing codes and the International Plumbing Code (IPC) for potable water system requirements. Allow the joint to cool fully before restoring pressure to the system.

Technical Specifications

• Pipe Size: 1 inch
• Connection Type: Solder Cup (Sweat)
• Lead-Free: Yes
• Package Quantity: 10 EA
• Weight: 0.85 pounds

Standard Information

• Brand: NIBCO INC
• Manufacturer Part Number: W01870D