Description
Lochinvar & A.O. Smith 100274785 Relief Valve Overview
The Lochinvar & A.O. Smith 100274785 is a heavy-duty commercial relief valve engineered to provide dependable overpressure protection for high-capacity boiler and water heating systems. With a rated capacity of 4,237,000 BTU/hr and a 50 PSI set pressure, this valve is built to handle the demanding requirements of large commercial and industrial hydronic applications. The 1.5″ connection size ensures compatibility with high-flow system piping configurations where reliable pressure relief is critical.
Key Features
- OEM replacement part for Lochinvar & A.O. Smith commercial heating systems
- 1.5″ inlet/outlet connection for high-flow installations
- 50 PSI (50#) set pressure for precise overpressure protection
- 4,237,000 BTU/hr rated relief capacity
- Designed for commercial and industrial boiler and water heater applications
- Provides automatic pressure relief to protect system components and ensure safe operation
Specifications
- SKU: 100274785
- Brand: Lochinvar & A.O. Smith
- Connection Size: 1.5″
- Set Pressure: 50 PSI (50#)
- Relief Capacity: 4,237,000 BTU/hr
- Valve Type: Relief Valve (Pressure Relief)
Application
This relief valve is the correct OEM replacement for Lochinvar and A.O. Smith commercial boilers and water heaters requiring a 1.5″, 50 PSI relief valve with a 4,237,000 BTU/hr discharge capacity. Proper pressure relief valves are essential safety components — always replace with the manufacturer-specified part to maintain system integrity, code compliance, and warranty coverage.
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