What type of equipment is essential for conducting service testing of fire hoses?

To conduct service testing of fire hoses, it is crucial to have nozzles with shutoff valves. These nozzles allow for controlled discharge of water during the testing process and can effectively stop the flow of water for safety and to maintain control of the pressure within the hose.

During the service testing of fire hoses, ensuring that the pressure is accurately managed and monitored is essential. Nozzles with shutoff valves enable the operator to quickly stop the water flow if needed, which is important for ensuring safety and preventing equipment damage. This feature also allows testers to simulate various scenarios, maintaining the integrity of the test conditions.

While other equipment, such as pressure gauges, is also important for assessing the condition of the hoses, it's the shutoff valves that provide critical control during the testing process. This capability makes nozzles with shutoff valves an essential piece of equipment for effective and safe service testing of fire hoses.