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The NIBCO PRESCAP12 is a 1/2-inch copper press tube cap designed to terminate open copper tubing ends without soldering. It uses a press-fit connection system, allowing installation with a standard pressing tool in seconds. This fitting is suited for potable water, hydronic heating, and refrigeration piping systems where a clean, flame-free termination is required. Licensed plumbers and mechanical contractors use this cap during system commissioning, pressure testing, and permanent service terminations. The press-fit design eliminates open-flame work, making it appropriate for occupied buildings and fire-sensitive environments.
This cap is used in residential and light commercial plumbing and hydronic systems wherever a 1/2-inch copper line must be permanently or temporarily capped. Common applications include capping unused branch lines, isolating sections of a distribution system for pressure testing, and terminating dead-end runs in radiant or forced-hot-water systems. It is installed by licensed plumbers and pipefitters working with press-fit copper systems.
Designed as an OEM-style press-fit copper cap for use with 1/2-inch copper tubing in standard press-fit piping systems.
Installation requires a compatible pressing tool rated for copper press fittings. Shut off and depressurize the line before fitting installation. Follow local plumbing codes and IPC guidelines for press-fit copper connections. Verify the tubing end is clean, round, and free of burrs before pressing to ensure a leak-free seal.
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