Legend Valve 101-551NL Ball Valve 1/4 Inch Fnpt Brass

Product Description

The LEGEND VALVE 101-551NL is a manual ball valve designed for 1/4-inch pipe connections with female NPT (FNPT) threading on both ends. This compact brass valve provides positive shutoff in water, hydronic, and light commercial plumbing systems. The full-port ball design delivers low pressure drop across the valve body when fully open. At 1 pound, the valve is lightweight without sacrificing the structural integrity that brass construction provides. Plumbers and pipefitters install this type of valve for isolation duty on branch lines, equipment connections, and service ports.

This valve is suited for residential and light commercial plumbing applications where a compact, reliable manual shutoff is needed at a 1/4-inch connection point. Typical installations include gauge isolation, equipment shutoff, and instrument tapping points on hydronic heating systems, water supply lines, and low-pressure gas service where code permits brass valves. The FNPT x FNPT configuration threads directly onto male NPT fittings or nipples without adapters.

Key Features

• Brass body construction for corrosion resistance in potable water and hydronic systems
• FNPT x FNPT end connections accept standard male NPT threaded pipe and fittings
• 1/4-inch pipe size suits gauge ports, instrument lines, and small branch connections
• Manual ball valve operation provides quick quarter-turn open and close
• Compact, lightweight design at 1 pound for tight installation spaces

Compatibility

Designed as an OEM-style replacement or new-installation manual ball valve for 1/4-inch FNPT threaded plumbing and hydronic piping systems.

Installation Notes

Installation is performed by licensed plumbers or qualified pipefitters in accordance with IPC and applicable local codes. Shut off supply pressure and depressurize the line before removing any existing valve or fitting. Apply thread sealant tape or compound to the male NPT threads being engaged, not to the valve's female threads. Verify the valve handle position and flow direction before returning the system to service.