Webstone H-20723 Pressure Relief Valve 3/4 in Mip 150 Psi

Product Description

The WEBSTONE H-20723 is a heavy-duty pressure relief valve designed to protect large residential and light commercial hot water and hydronic systems from dangerous overpressure conditions. With a 150 psi relief setting and a discharge capacity rated up to 2.7 million BTU/h, this valve is built for high-output equipment that exceeds the capacity of standard residential relief valves. The 3/4 inch MIP inlet threads directly into common relief tappings found on large-volume storage tanks and high-output hydronic equipment. Licensed plumbers and HVAC technicians install this valve as a critical safety device on boilers, indirect tanks, and oversized water heaters.

This valve is suited for large residential and light commercial applications where system operating pressures approach or require a 150 psi relief point. Typical installations include high-gallonage storage water heaters, large indirect water heaters, and oversized hydronic boiler loops. The 2.7 million BTU/h discharge rating ensures rapid pressure reduction under worst-case runaway heating conditions, making it appropriate for high-output, high-demand systems where standard relief valves would be undersized.

Key Features

• 150 psi relief setting for high-pressure system protection
• 2.7 million BTU/h discharge capacity handles high-output and runaway heating scenarios
• 3/4 inch MIP inlet matches common relief tappings on large storage tanks and hydronic equipment
• Heavy-duty brass body construction for durability in demanding pressure events
• Stainless steel internal components resist corrosion in hot water service

Compatibility

Designed as an OEM-style replacement or new-installation pressure relief valve for large residential and light commercial storage water heaters, indirect water heaters, and hydronic boilers requiring a 3/4 inch MIP inlet and a 150 psi relief setting.

Installation Notes

Installation must be performed by a licensed plumber in accordance with local plumbing codes and applicable sections of the IPC. Before servicing or replacing any relief valve, shut off the heat source and allow system pressure to drop to a safe level. Confirm that the appliance maximum allowable working pressure supports a 150 psi relief setting before installation. Discharge piping must be routed to a safe termination point, sized to handle the full rated flow capacity of the valve, and must not be capped, valved off, or otherwise restricted.

Technical Specifications

• Relief Pressure Setting: 150 psi
• Discharge Capacity: 2.7 million BTU/h
• Inlet Connection: 3/4 inch MIP
• Body Material: Brass
• Internal Components: Stainless Steel

Standard Information

• Brand: WEBSTONE
• Manufacturer Part Number: H-20723