Nibco NL3MN0B Bronze Globe Valve 1-1/4 in Threaded 400 Psi

Product Description

The NIBCO NL3MN0B is a full plug disc globe valve built for bronze construction with threaded end connections sized at 1-1/4 inches pipe. It features a union bonnet design and a renewable alloy-threaded disc, making in-field maintenance straightforward without removing the valve body from the line. Rated at 400 psi WOG (water, oil, gas) and 200 psi WSP (working steam pressure), this Class 200 valve is suited for demanding flow-control applications in both liquid and steam service. Licensed plumbers and pipefitters install this type of valve in commercial and industrial piping systems where throttling and shutoff capability are both required.

This globe valve is appropriate for residential and commercial plumbing, HVAC hydronic systems, steam distribution, and general industrial piping where a reliable threaded bronze valve is specified. The 1-1/4 inch pipe size fits common branch and main line applications in boiler rooms, mechanical rooms, and process piping. Its bronze body provides corrosion resistance suitable for water, steam, oil, and compatible gas service within rated pressure limits.

Key Features

• Full plug disc design provides improved flow characteristics compared to a standard composition disc
• Renewable alloy-threaded disc allows seat and disc replacement without valve body removal
• Union bonnet construction simplifies internal access for inspection and maintenance
• Rated 400 psi WOG for broad liquid, oil, and gas service capability
• Rated 200 psi WSP for steam applications up to Class 200 limits
• Bronze body with threaded ends for corrosion resistance and secure pipe connections

Compatibility

Designed as an OEM-style replacement or new-installation globe valve for 1-1/4 inch threaded pipe systems in plumbing, HVAC hydronic, and steam piping applications rated to Class 200 service.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with local plumbing codes and applicable sections of the International Plumbing Code (IPC). Shut off system pressure and drain the line completely before removing or installing the valve. Apply appropriate thread sealant or PTFE tape to the threaded connections per code requirements. Do not exceed the stated WOG or WSP pressure ratings for the intended service medium.