A. O. Smith 100093659 / 6905042 Tp Relief Valve

Product Description

The A. O. SMITH 100093659 / 6905042 is a temperature and pressure (T&P) relief valve designed for residential and light commercial water heater installations. T&P relief valves are a critical safety component that automatically discharge water when system temperature or pressure exceeds safe operating limits, protecting the tank and plumbing system from catastrophic failure. This valve features a 3-inch shank, which determines the installation depth into the water heater port. It is installed by licensed plumbers and HVAC technicians as part of standard water heater service or replacement work.

This T&P valve is suited for water heater applications where a 3-inch shank depth is required by the tank port specification. It is sold as a single unit and is appropriate for use during new water heater installation or as a replacement when an existing T&P valve fails to seal properly, weeps continuously, or has exceeded its recommended service interval. Catalog number 100108780 is associated with this part for cross-reference purposes.

Key Features

• 3-inch shank length for proper immersion depth into the water heater tank port
• Functions as a safety relief device by releasing pressure and temperature buildup automatically
• Sold as a single unit, direct replacement format
• Associated catalog number 100108780 for cross-reference ordering

Compatibility

Designed as an OEM-style replacement T&P relief valve for water heaters requiring a 3-inch shank fitment. Verify tank port size, BTU/h rating, and pressure rating requirements before installation.

Installation Notes

T&P relief valves are installed by licensed plumbers in accordance with local plumbing codes and the International Plumbing Code (IPC). Always shut off the water supply and power or gas to the water heater before removing or replacing a T&P valve. Ensure the discharge pipe is properly routed to a safe drain location per code requirements. Do not cap or plug the discharge outlet under any circumstances.