Watts F274428 174A Bronze Water Pressure Relief Valve 3/4 Inch FNPT 30 PSI

Product Description

The Watts model F274428, known as the 174A series, is a reliable and efficient pressure relief valve crafted from robust bronze, ensuring durability and longevity. This valve features a 3/4 inch FNPT inlet and outlet with a non-metallic disc to metal seating arrangement designed to safeguard hot water heating and domestic supply boiler applications from excessive pressure.

• Automatic reset with a standard pressure setting of 30 psi.
• Equipped with a stainless steel spring and a test lever for ease of operation.
• Capable of handling pressure range increments from 30 to 150 psi, supporting Btu/hr ratings from 650,000 to 14,370,000.

Product Highlights

Designed specifically for use in hot water boiler systems, this valve offers both functionality and security in high-pressure conditions. It features a high temperature resisting water seal and a non-mechanical seat to disc alignment that prevents sticking or freezing.

Product Information

Standard Information

• Brand: Watts
• MPN: F274428

Technical Specifications

• Material: Bronze
• Connection Size: 3/4 in
• Connection Type: FNPT
• Pressure Rating: 30 psi
• Series: 174A
• Temperature Rating: 250 degrees Fahrenheit
• Body Dimensions: 2-3/4 in L x 4-1/2 in H
• Standards/Certifications: ASME Section IV, HV, NB, ISO 9001