Ao Smith 100281574 Gas Valve Kit 2 Inches

Product Description

The AO SMITH 100281574 is a 2-inch natural gas service valve kit designed for use in water heater systems requiring a controlled shutoff and service access point on the gas supply line. This kit provides the necessary valve hardware for technicians performing gas line service, replacement, or commissioning work on compatible hot water heating equipment. Sized at 2 inches, it is suited for commercial or high-capacity residential installations where larger gas supply lines are standard. Licensed plumbers and gas fitters install this valve as part of routine service or system upgrades.

This valve kit is intended for natural gas applications. The 2-inch size makes it appropriate for commercial water heating installations or large residential systems with correspondingly sized gas supply piping. It is designed for use in HWL (hot water line) configurations where a reliable, properly rated shutoff valve is required to meet code and allow safe service access to downstream gas-fired equipment.

Key Features

• 2-inch size accommodates larger-diameter natural gas supply lines
• Natural gas (NG) service configuration for compatible water heating systems
• Kit format includes necessary valve components for field service or replacement
• Designed for HWL service valve applications

Compatibility

Designed as an OEM-style replacement gas service valve kit for AO SMITH water heating equipment requiring a 2-inch natural gas valve in HWL configurations.

Installation Notes

Installation must be performed by a licensed plumber or qualified gas fitter in accordance with local codes and the International Fuel Gas Code (IFGC). Shut off the main gas supply and verify zero pressure at the line before beginning any valve replacement or service work. Leak-test all connections with an approved gas leak detection solution after installation. Do not use open flame to test for leaks.

Technical Specifications

• Size: 2 inches
• Gas Type: Natural Gas (NG)

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100281574