Which device is installed on standpipe risers where the static pressure exceeds 175 psi?

When static pressure on standpipe risers exceeds 175 psi, a pressure regulating valve is installed to manage and reduce the pressure to a safe and usable level for firefighting operations. High static pressure can be detrimental for several reasons: it may cause difficulty in handling fire hoses, increase the risk of hose and fitting failures, and challenge the overall operation of the firefighting system.

The pressure regulating valve automatically adjusts the pressure delivered through the system, ensuring that firefighters can operate hoses effectively without encountering overwhelming pressure. This regulation also helps maintain the integrity of the standpipe system and protects the components from potential damage caused by excessive pressure.