Carrier 3020450 Pressure Relief Valve 1/2 " NPT x 5/8 " SAE 450 PSI

The Carrier 3020450 Pressure Relief Valve is an essential safety product for HVAC systems. It has a 1/2 NPT and 5/8 SAE. That means it threads into a pipe as NPT and on the other end is a hose that is referred to as SAE. Its primary use is to relieve pressure that is above 450 PSI and is done so without the need for intervention. By doing this it protects the whole system from malfunctions such as pipe bursts, equipment damage, and possible danger to lives. Its temperature range of -40°F to 325°F. This pressure relief valve is normally used in different HVAC apparatuses such as boilers, water heaters, and chilled water systems.