Legend Valve 116-204 Flanged Check Valve 4 Inch 125 Psi

Product Description

The LEGEND VALVE 116-204 is a 4-inch flanged inline check valve designed to prevent backflow in commercial and industrial piping systems. Constructed from cast iron, this valve carries a 125 psi working steam pressure (WSP) rating and a maximum working pressure of 200 psi, making it suitable for demanding service environments. It meets MSS SP-71 standards and is rated for temperatures up to 450 degrees F. Licensed plumbers and pipefitters install this type of valve as part of larger distribution or process piping systems where reverse flow must be controlled.

This check valve is suited for inline installation in commercial plumbing, hydronic heating, process piping, and industrial fluid-handling systems. The flanged end connection simplifies bolt-up installation to mating flanged pipe or equipment. At 82 pounds, this is a heavy-duty component intended for permanent installation in 4-inch piping runs. It is not a residential-grade fitting — the size and weight class place it firmly in light commercial to industrial applications typically handled by journeyman or master plumbers and pipefitters.

Key Features

• Cast iron body for durability in commercial and industrial service
• Flanged end connections for straightforward bolt-up installation
• 125 psi WSP rating with a 200 psi maximum working pressure
• Rated for temperatures up to 450 degrees F
• Meets MSS SP-71 standard for cast iron swing check valves
• Inline configuration prevents backflow in pressurized piping systems

Compatibility

Designed as an OEM-style flanged swing check valve for 4-inch pipe installations in commercial and industrial piping systems meeting MSS SP-71 requirements.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable mechanical and plumbing codes. Shut down and fully depressurize the piping system before beginning work, and verify that all fluid has been drained from the line. Flanged connections require matching flange faces, appropriate gaskets, and properly torqued fasteners per the flange standard in use. Verify flow-direction arrow on the valve body is aligned with intended flow before bolting up.