A.o. Smith 100109897 Gas Valve 3/4 Inch Natural Gas

Product Description

The A.O. SMITH 100109897 is a 3/4-inch natural gas valve designed for heating applications. Gas valves control the flow of gas to a burner assembly, regulating ignition and steady-state combustion in water heaters and similar gas-fired heating equipment. This valve is sized at 3/4 inches for compatibility with standard supply line connections found in residential and light commercial installations. Licensed plumbers and HVAC technicians are the primary installers of this component during new installations or service replacement work.

This gas valve is intended for natural gas (NG) heating systems. It is suited for use in residential and light commercial water heating or space heating equipment requiring a 3/4-inch gas valve. Installation scenarios typically include direct replacement of a failed or degraded OEM valve in gas-fired appliances where maintaining proper gas flow regulation is critical to safe and efficient operation.

Key Features

• 3/4-inch valve size for standard gas supply line connections
• Configured for natural gas (NG) fuel type
• Designed for heating application use
• OEM part number 100109897 ensures fitment accuracy for A.O. SMITH equipment

Compatibility

Designed as an OEM-style replacement gas valve for A.O. SMITH natural gas heating equipment requiring a 3/4-inch valve configuration.

Installation Notes

Gas valve replacement must be performed by a licensed plumber or qualified HVAC technician in accordance with local codes and IFGC requirements. Shut off the manual gas supply and allow the appliance to cool completely before beginning any service work. Verify inlet and outlet connections are leak-free using an approved gas leak detection solution after installation. Never pressurize the gas line before all fittings are fully secured and inspected.

Technical Specifications

• Valve Size: 3/4 inches
• Gas Type: Natural Gas (NG)
• Application: Heating

Standard Information

• Brand: A.O. SMITH
• Manufacturer Part Number: 100109897