Description
OEM Pressure Relief Valve for Lochinvar & A.O. Smith Systems
The Lochinvar & A.O. Smith 100112872 is a genuine OEM pressure relief valve engineered to protect boilers and water heating equipment from dangerous overpressure conditions. With a 3/4″ NPT connection and a 125 PSI (125#) pressure rating, this valve is a direct factory replacement that ensures your system operates safely within its designed pressure limits.
Key Features
- Genuine OEM replacement part for Lochinvar and A.O. Smith equipment
- 3/4″ NPT threaded connection for straightforward installation
- 125 PSI (125#) pressure relief rating for dependable overpressure protection
- Designed to automatically release excess pressure, safeguarding system components
- Direct drop-in replacement — no modifications required
- Durable construction built to withstand demanding hydronic and water heating environments
Application
This relief valve is intended for use on Lochinvar and A.O. Smith boilers and commercial or residential water heaters where a 3/4″ NPT, 125 PSI relief valve is specified. Always verify compatibility with your specific model before installation.
Why Choose an OEM Relief Valve?
Using a genuine OEM pressure relief valve ensures proper set-point accuracy, code compliance, and long-term reliability. Aftermarket substitutes may not meet the exact pressure tolerances required by your equipment manufacturer, potentially voiding warranties or creating safety hazards.







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