Nibco PRESCOUPLS4 Copper Press Repair Coupling 4 in

Product Description

The NIBCO PRESCOUPLS4 is a 4-inch copper press repair coupling configured in a Press x Press end connection pattern with no internal stop. Designed for use in pressurized plumbing and hydronic piping systems, this fitting allows technicians to make a full-bore repair splice without the restriction of a center stop, enabling the coupling to slide freely along the pipe before final positioning. The press-style connection eliminates open flame, making it well suited for repairs in areas where torch work is restricted or impractical.

This repair coupling is used in residential and commercial plumbing applications wherever a section of copper pipe must be replaced or spliced inline. The absence of an internal stop is especially useful in repair scenarios where the fitting must be slid back over existing pipe before being pressed into final position. Licensed plumbers and pipefitters working on potable water supply lines, hydronic heating loops, and fire suppression systems commonly specify press-style couplings for speed and code-compliant no-flame installation.

Key Features

• 4-inch Press x Press end connections for tool-pressed, no-solder installation
• No internal stop allows free sliding along the pipe for repair splicing
• Copper construction provides corrosion resistance suitable for potable water and hydronic systems
• Eliminates open-flame torch work, reducing fire risk and meeting restricted-flame job-site requirements
• Full-bore design maintains flow capacity through the repair section

Compatibility

Designed as an OEM-style press fitting replacement and repair coupling for 4-inch copper piping systems using standard press-style tooling and approved press connection sleeves.

Installation Notes

Installation must be performed by a licensed plumber or pipefitter using a calibrated press tool approved for the fitting size and connection type. Shut off the water supply and depressurize and drain the line completely before cutting pipe or installing the fitting. Verify that the pipe ends are clean, round, and free of burrs before inserting into the coupling. Follow applicable local plumbing codes and ASTM standards for press-fit copper fittings.

Technical Specifications

• Material: Copper
• Connection Type: Press x Press
• Size: 4 inches
• Stop Configuration: Without Stop
• Series: PC601

Standard Information

• Brand: NIBCO
• Manufacturer Part Number: PRESCOUPLS4