Apollo Valves 16LF50301 Bronze Safety Relief Valve 50 Psig

Product Description

The APOLLO VALVES 16LF50301 is a bronze safety relief valve rated at 50 psig, designed to protect plumbing and hydronic systems from dangerous overpressure conditions. Built with a 1/2-inch male NPT inlet and 1/2-inch female NPT outlet, it installs directly inline in residential and light commercial water systems. When system pressure exceeds the 50 psig set point, the valve opens automatically to discharge and relieve excess pressure, then reseats once safe operating pressure is restored. Licensed plumbers and HVAC technicians are the primary installers of this valve in potable water and heating system applications.

This safety relief valve is suited for residential and light commercial plumbing, hot water heating systems, and hydronic installations where overpressure protection is required. The 1/2-inch MNPT x FNPT connection makes it compatible with standard pipe fittings commonly found in boiler supply lines, water heaters, and pressure-regulated distribution systems. It is appropriate for installations governed by ASME, ANSI, or local plumbing codes that require pressure relief on closed water systems.

Key Features

• Set pressure of 50 psig for precise overpressure protection
• Bronze body construction for durability in potable water and hydronic service
• 1/2-inch MNPT inlet x 1/2-inch FNPT outlet for direct inline installation
• Automatic reseating after pressure relief event
• Compact form factor suited for tight mechanical room installations

Compatibility

Designed as an OEM-style replacement or new-installation safety relief valve for 1/2-inch NPT-threaded plumbing, hydronic heating, and water heater systems requiring a 50 psig relief rating.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and ASME standards. Shut off the water supply and depressurize the system before removing any existing valve or installing this unit. Apply thread sealant or PTFE tape to the male NPT threads per standard practice, and do not overtighten, as bronze fittings can crack under excessive torque. Ensure the discharge port is piped to a safe drain location in compliance with local code requirements.

Technical Specifications

• Set Pressure: 50 psig
• Inlet Connection: 1/2 inch MNPT
• Outlet Connection: 1/2 inch FNPT
• Body Material: Bronze

Standard Information

• Brand: APOLLO VALVES
• Manufacturer Part Number: 16LF50301