Thrush Products 20S C2 80D Pressure Relief Valve

Description:

The Thrush Products 20S C2 80D Pressure Relief Valve is used in hydronic heating and closed-loop water systems to protect piping and equipment from excessive system pressure. Commonly installed in commercial HVAC systems, hot water boilers, heat exchangers, pressure vessels, and industrial hydronic circulation systems utilizing 1/2-inch NPT piping connections. Maintenance teams and HVAC system integrators use this pressure relief valve for system repairs, preventive maintenance, pressure protection upgrades, and replacement of worn or malfunctioning safety relief valves.

Applications:

The Thrush Products 20S C2 80D pressure relief valve automatically opens when system pressure exceeds its preset limit, protecting boilers, pumps, piping, and associated hydronic equipment from overpressure conditions. It is widely used in commercial heating systems, institutional boiler rooms, industrial hot water systems, mechanical equipment rooms, and HVAC installations where reliable overpressure protection is required.

Technical Specifications:

• Brand: Thrush Products
• Model: 20S C2 80D
• Product Type: Pressure Relief Valve
• Connection Size: 1/2 in. NPT
• Connection Type: Female NPT
• Valve Function: Overpressure Protection
• Application: Hydronic Heating and Closed-Loop Water Systems
• Pressure Setting: 80 PSI
• Valve Type: Spring-Loaded Pressure Relief Valve
• Media: Water and Compatible Hydronic Fluids
• Installation: Inline Piping
• System Type: Commercial and Industrial HVAC Systems
• Compatible Equipment: Boilers, Heat Exchangers, Pumps, Pressure Vessels, Hydronic Distribution Systems
• Body Material: Bronze (series dependent)
• Designed for Continuous Industrial and Commercial Service

Common Replacements:

• Thrush 20S C2 100D
• Bell & Gossett 110192 1/2" 80 PSI Relief Valve
• Watts 174A 1/2" 80 PSI Pressure Relief Valve