Mueller Industries 116-503 Brass Gas Ball Valve 1/2 Inch Flare

Product Description

The MUELLER INDUSTRIES 116-503 is a one-piece body brass gas ball valve designed for shutoff and flow control in gas distribution lines. Built from forged brass, the one-piece body construction minimizes potential leak paths and extends service life compared to multi-piece valve assemblies. The valve uses 1/2 inch flare inlet and outlet connections and is rated for use with natural gas, LP gas, and oil. A yellow handle provides immediate visual identification as a gas-service component and allows for quick quarter-turn operation. Licensed plumbers and gas fitters install this valve in residential and light commercial gas piping systems.

This valve is suited for residential and light commercial applications where a reliable, code-appropriate shutoff is required on a gas supply line. Compatible with natural gas, LP gas, and oil service, it also carries suitability for traditional plumbing applications. The flare-by-flare configuration makes it a practical choice for connections to appliances, meters, or branch lines where flare fittings are the specified connection type. The yellow handle is a widely recognized visual indicator for gas-line service components.

Key Features

• Forged brass one-piece body for reduced leak paths and extended service life
• 1/2 inch flare x 1/2 inch flare connections for secure, tool-made joints
• Quarter-turn ball valve operation for fast open and close
• Yellow handle provides immediate visual identification as a gas-line valve
• Rated for natural gas, LP gas, oil, and standard plumbing service

Compatibility

Designed as an OEM-style replacement or new-installation shutoff valve for residential and light commercial gas piping systems using 1/2 inch flare connections on natural gas, LP gas, or oil lines.

Installation Notes

Installation should be performed by a licensed plumber or qualified gas fitter in accordance with applicable local codes and the International Fuel Gas Code (IFGC). Shut off the gas supply at the meter or main shutoff and verify zero pressure in the line before removing or installing any valve. Flare connections must be made with properly flared tubing and inspected for leaks with an approved gas leak detection solution after restoring pressure. Do not over-torque flare fittings, as this can deform the seat and compromise the seal.

Technical Specifications

• Body Material: Forged Brass
• Body Style: One-Piece
• Inlet Connection: 1/2 inch Flare
• Outlet Connection: 1/2 inch Flare
• Compatible Media: Natural Gas, LP Gas, Oil
• Handle Color: Yellow
• UPC: 032888165038

Standard Information

• Brand: MUELLER INDUSTRIES
• Manufacturer Part Number: 116-503