Nibco Inc W01850T Copper Tube Cap 1/2 Inch Solder

Product Description

The NIBCO INC W01850T is a 1/2-inch copper tube cap designed to seal the end of copper pipe using a solder cup connection. This lead-free fitting is used by licensed plumbers and pipefitters to permanently close off the terminus of a copper line during installation, system modification, or when capping an unused port. The solder cup design provides a clean, reliable seal and conforms to lead-free standards required by modern plumbing codes. It is a small but critical component in any copper piping system where a secure, pressure-tight end closure is needed.

This cap is suited for residential and light commercial plumbing applications where 1/2-inch copper tubing is standard. Typical uses include capping supply lines during staged construction, isolating decommissioned branch lines, or sealing test ports after pressure testing. The fitting slips over the outside of the pipe and is secured with solder, making it compatible with standard Type K, L, and M copper tubing of the corresponding diameter.

Key Features

• Solder cup connection for a permanent, pressure-tight seal on copper pipe ends
• Lead-free construction meets current plumbing code requirements for potable water systems
• Sized for 1/2-inch copper tube, compatible with Type K, L, and M tubing
• Compact end cap profile minimizes space requirements in tight installations
• Sold in packages of 25 units, suitable for contractor stocking

Compatibility

Designed as an OEM-style lead-free solder fitting for use with 1/2-inch copper tubing in standard residential and commercial plumbing systems.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and depressurize the line before soldering. Clean and flux both the pipe end and the interior of the fitting before applying heat to ensure a proper solder joint. Avoid overheating the fitting, as excessive heat can compromise the joint integrity.

Technical Specifications

• Pipe Size: 1/2 inch
• Connection Type: Solder Cup
• Lead-Free: Yes
• Weight: 0.68 pounds
• Package Quantity: 25 EA

Standard Information

• Brand: NIBCO INC
• Manufacturer Part Number: W01850T