Watts 374a Pressure Relief Valve, 3/4 In. Fnpt, Iron Body

The Watts 374A Series pressure relief valve is an essential safety component for hot water boiler systems. Designed to protect boiler equipment from dangerous pressure buildup, this valve automatically releases excess pressure to prevent ruptures and system damage. It is intended for emergency safety relief applications and should not be used as an operating control.

Whether you're maintaining a residential heating system or managing commercial boiler equipment, this pressure relief valve provides reliable protection against excessive pressure on all types of hot water heating systems. Its durable construction and time-tested design make it a trusted choice for both professional plumbers and homeowners performing maintenance.

Features and Benefits

• Iron Body with Forged Bronze Inlet: Heavy-duty construction withstands the demands of hot water heating applications and resists corrosion in challenging water conditions.
• Non-Metallic Disc-to-Metal Seating: Prevents sticking and freezing, ensuring reliable valve operation even under difficult circumstances and preventing water and sediment from accumulating in the seat.
• Stainless Steel Spring: Built with stainless steel for corrosion resistance in hot water environments.
• Test Lever: Allows easy manual testing and verification of valve functionality for maintenance and troubleshooting.
• Emergency Safety Relief Design: Automatically activates when system pressure exceeds safe limits, protecting equipment from damage and potential hazards.

Specifications

• Brand: Watts
• Model: 374A
• Size: 3/4 inch FNPT (Female National Pipe Thread)
• Body: Iron with forged bronze inlet connections
• Disc-to-Metal Seating: Non-metallic
• Spring: Stainless steel
• Application: Hot water boiler emergency safety relief only; not for use as an operating control