Are gridded dry pipe systems considered acceptable?

Gridded dry pipe systems are generally not considered acceptable due to their inherent design and performance challenges. These systems can lead to complications such as improper water distribution and difficulties in maintaining the intended operational pressures. Unlike conventional dry pipe systems, which rely on a single pressurized line to keep pipes dry until activation, gridded systems may result in water pooling in certain areas, which can affect the system's overall reliability and effectiveness in fire suppression.

Additionally, the standards and codes governing fire protection equipment and sprinkler systems often outline specific conditions and configurations that must be adhered to for safety and performance. The complexities involved in installing and maintaining a gridded dry pipe system can compromise its ability to function as intended during a fire event, leading to potential hazards. Thus, the prevailing guidance indicates that these systems should not be utilized without clear justification or a robust supporting framework that addresses these risks.