Legend Valve 116-123 Os Y Gate Valve 3 Inch Flanged Cast Iron

Product Description

The LEGEND VALVE 116-123 is a 3-inch outside stem and yoke (OS and Y) gate valve designed for isolation service in commercial and industrial piping systems. The flanged end connections and bolted bonnet construction make it well suited for systems where regular inspection or repacking is required. The solid wedge disc provides reliable full-bore shutoff with low pressure drop across the valve seat. At 125 pressure class, this valve meets common requirements for low-pressure steam, water, and general-purpose fluid service. Weighing 60 pounds, it is a heavy-duty cast iron unit intended for permanent installation by licensed plumbers or pipefitters.

This valve is typically installed in commercial mechanical rooms, industrial process lines, or municipal water distribution systems where flanged isolation valves are specified. The OS and Y design allows visual confirmation of valve position — an open stem indicates an open valve — which is a common requirement for fire protection and life-safety piping systems under NFPA codes. The 3-inch pipe size fits main supply and return headers in larger hydronic heating, cooling, and water service applications.

Key Features

• Outside stem and yoke (OS and Y) design allows visual open/closed status confirmation
• Solid wedge disc delivers reliable full-bore shutoff with minimal flow restriction
• Bolted bonnet permits repacking and in-line maintenance without valve removal
• Flanged end connections suit direct bolt-up to mating flanged pipe or equipment
• 125 pressure class cast iron body rated for low-pressure steam, water, and fluid service

Compatibility

Designed as an OEM-style flanged gate valve replacement or new installation fitting for 3-inch Class 125 cast iron flanged piping systems in commercial and industrial applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable mechanical codes such as the IPC or ASME B16.1 flange standards. Isolate and depressurize the piping system completely before bolting the valve into the line. Verify flange bolt torque is applied evenly in a cross pattern to ensure a proper gasket seal. The OS and Y stem must remain unobstructed after installation to allow visual status verification and stem travel.