1" Bronze Pressure Relief Valve, Female

Watts 1" Bronze Pressure Relief Valve – Dependable Safety for Hydronic Heating Systems

Designed for hot water boiler systems, the Watts 1" Bronze Pressure Relief Valve provides reliable overpressure protection in closed-loop heating applications. Factory set at 30 psi, this valve ensures critical pressure relief to protect tanks, piping, and components from damage due to thermal expansion or pressure spikes.

Engineered with a corrosion-resistant bronze body and a non-metallic seat-to-metal design, this safety valve delivers consistent sealing, long-term performance, and simplified maintenance in demanding environments. Its compact form factor and female NPT connections make it an ideal fit for a wide range of hydronic system configurations.

Product Features

• Bronze Body Construction – Durable and corrosion-resistant, ideal for high-temperature heating systems
• 30 PSI Factory Set Pressure – Precision-calibrated for residential and light commercial hot water boiler protection
• Non-Metallic Disc – Ensures reliable resealing after discharge without metal-to-metal wear
• Top-Mounted Test Lever – Allows for periodic functional testing to ensure operability and code compliance
• Compact Footprint – Suitable for installations where space is limited

Specifications

• Inlet/Outlet Size: 1" FNPT x 1" FNPT
• Set Pressure: 30 psi
• Max Temp: 250°F
• Body Material: Bronze
• Discharge Orientation: Vertical
• Overall Height: 5-3/4"

Installation Notes

This valve should be installed in the boiler supply line near the tank or heat exchanger outlet, oriented vertically with the discharge opening unobstructed. It must be piped to a safe drain location using appropriately sized piping to handle discharge flow. Installation should be performed by a licensed technician in accordance with ASME and local plumbing codes.

Ideal for the Job Site

Contractors: Count on this valve for code-compliant overpressure protection in residential and small commercial boiler applications. Its proven reliability and simple test lever design make annual inspection and verification easy.

System Designers: Integrate this relief valve into closed-loop hot water systems where pressure regulation and safety redundancy are critical. It meets ANSI and ASME boiler and pressure vessel code requirements for low-pressure heating systems.

Backed by a Trusted Manufacturer

Watts has long been a recognized leader in pressure control, offering proven solutions for mechanical safety and plumbing system performance. This 1" bronze model is no exception—backed by third-party certifications and industry acceptance, it's a preferred choice among plumbing and mechanical professionals.

Order Now – Built for Protection, Built to Last

Ensure your hot water heating system stays protected with the Watts 1" Bronze Pressure Relief Valve. Built to handle thermal expansion, system surges, and continuous heating cycles, it's the smart safeguard your system needs.