Watts F275464 174A-1-150# Relief Valve 3,795,000 BTU/hr 150 PSI

Description

Watts F275464 174A-1 Pressure Relief Valve Overview

The Watts F275464 is a 174A-series pressure relief valve engineered to deliver dependable overpressure protection for steam and hot water heating boilers. With a 150 PSI pressure setting and an impressive 3,795,000 BTU/hr capacity rating, this valve is built to handle the demands of large commercial and industrial hydronic heating systems.

Key Features

• Model: 174A-1 — part of the trusted Watts 174A series relief valve line
• Pressure setting: 150 PSI (150#)
• Capacity rating: 3,795,000 BTU/hr
• Connection size: 1″ NPT (indicated by the “-1” model suffix)
• Designed for steam and hot water boiler applications
• Bronze construction for corrosion resistance and long service life
• Automatic pressure relief to protect boilers and hydronic systems from dangerous overpressure conditions

Application

The Watts 174A-1 relief valve is ideal for use on commercial and industrial hot water and steam boilers where reliable overpressure protection is critical. It automatically opens to discharge excess pressure when system pressure exceeds the 150 PSI set point, safeguarding equipment, piping, and personnel.

Why Choose Watts Relief Valves

Watts is a globally recognized leader in flow control products. The 174A series is a proven solution trusted by HVAC contractors, mechanical engineers, and boiler technicians for its robust construction, consistent performance, and compliance with industry safety standards.