Watts 0121566 Valve

The Watts 0121566 LF174A relief valve is a 2-inch lead-free pressure relief valve designed for high-capacity hot water, boiler, hydronic, and commercial plumbing system applications. Rated for 100 PSI pressure relief, this Watts LF174A relief valve is commonly installed to help protect piping systems, storage tanks, and process equipment from excessive pressure conditions that can damage components or compromise system safety.

Engineered for commercial and industrial fluid systems, the valve features a durable construction suitable for continuous-duty HVAC and mechanical room applications. Contractors frequently use this 2-inch pressure relief valve in boiler loops, water heating systems, hydronic circulation systems, and large-capacity plumbing installations where dependable overpressure protection is required. The lead-free design supports compliance with potable water installation requirements where applicable.

• OEM Watts LF174A pressure relief valve
• 2" valve size for commercial fluid systems
• 100 PSI pressure relief setting
• Lead-free construction for applicable potable water systems
• Used in HVAC, boiler, hydronic, and plumbing applications

Common Question:
What is the purpose of the Watts LF174A relief valve?
This valve is designed to release excess system pressure automatically to help protect boilers, piping systems, tanks, and connected equipment from overpressure conditions.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

0121566 is the cross for 0278450 (LEAD FREE REPLACEMENT)

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