What equipment must each turret and hose reel be equipped with?

Each turret and hose reel must be equipped with a shutoff nozzle or flow control valve to ensure that the flow of extinguishing agent can be regulated and controlled effectively. This equipment allows the operator to manage the discharge of dry chemical agents safely and efficiently, enabling targeted application during a fire incident. The ability to shut off or adjust the flow is critical in maintaining control of the firefighting effort, preventing waste of the extinguishing agent, and ensuring adequate coverage of the area affected by fire.

While other options may be beneficial in specific contexts—such as fire alarm systems for alerting of a fire or pressure gauges for monitoring system integrity—they are not essential requirements for turrets and hose reels under the NFPA 17 Standard. The presence of a shutoff nozzle or flow control valve is fundamental for the operational functionality of these systems in effectively combating fires.