Nibco PRES90L4 Copper Press 90 Degree Elbow 4 in

Product Description

The NIBCO PRES90L4 is a 4-inch copper press-fit 90-degree elbow designed for use in pressurized plumbing and mechanical piping systems. This fitting connects two copper pipes at a right angle using a press-fit connection, eliminating the need for open flame soldering on the jobsite. It is suited for potable water, hydronic heating, and commercial plumbing applications where speed and reliability are priorities. Licensed plumbers and pipefitters install this type of fitting using a compatible press tool and jaws sized for 4-inch copper.

This elbow is intended for residential and commercial plumbing installations where 4-inch copper piping is used. Press-fit copper fittings are common in new construction and retrofit work, particularly in areas where torch use is restricted or impractical. The PRESS x PRESS end configuration means both ends accept standard copper pipe and are joined mechanically with a press tool, making it a practical choice for tight spaces or fire-sensitive environments.

Key Features

• 4-inch press x press end connections for tool-based, no-solder installation
• 90-degree elbow geometry for direction changes in copper piping runs
• Copper construction for corrosion resistance in water and hydronic systems
• Compatible with standard press tooling used in commercial and residential plumbing
• Eliminates open-flame soldering, reducing fire risk during installation

Compatibility

Designed as an OEM-style press-fit replacement fitting for use with 4-inch copper pipe in standard plumbing and mechanical piping systems.

Installation Notes

Installation requires a calibrated press tool with 4-inch copper jaws. Shut off and depressurize the piping system before cutting and fitting. Ensure pipe ends are clean, deburred, and fully inserted to the pipe stop before pressing. Work must comply with applicable local plumbing codes and IPC standards; a licensed plumber should perform or oversee installation.

Technical Specifications

• Material: Copper
• Connection Type: Press x Press
• Pipe Size: 4 inches
• Fitting Angle: 90 Degrees

Standard Information

• Brand: NIBCO
• Manufacturer Part Number: PRES90L4