The lock shield valves are installed usually in the fire hose reel and the valve can be opened only by the key. and the key shall be kept with the maintenace team not in the valve. So the valve cannot be closed by the other people.
It is a Clean fire agent gas based system to extinguish the fire & it is a combination of fire inhibitors & cooling..
Main fire line valve
There is evidence that the Egyptians (yes, those nice folks who built the pyramids) and the Romans, both cultures of the ancient world, had organized fire fighting groups. That makes fire fighting a very old tradition as well as an essential public service. Use the link below to read more.
Normally it is filled with compressed air. A dry sprinkler system is used in areas exposed to temperatures that would freeze water. When a fire is sensed the soft metal link of a sprinkler head melts , releases the compressed air which in turn opens a valve to a fire main allowing the system to flood with water and extinguish the fire. Parking ramps in the northern US have dry systems, for example, because of the weather.
The valve spring is the spring that closes the valve in the engine head after the cam lobe or rocker opens it . If the valve didn't close, many things would happen , the main one being the motor would not fire .
fire truck
It's type of valve used in fire water system for fire protaction.
A sprinkler bell valve in a fire protection system controls the flow of water to sprinkler heads. It opens when the system detects a fire, allowing water to flow and extinguish the fire.
The function of a sprinkler pressure valve in a fire protection system is to regulate and control the water pressure within the system to ensure that the sprinklers operate effectively in case of a fire.
It is a Clean fire agent gas based system to extinguish the fire & it is a combination of fire inhibitors & cooling..
A fire fighting system typically consists of fire alarms, sprinkler systems, fire extinguishers, and other equipment designed to detect and suppress fires. These systems are crucial for early detection and containment of fires in buildings to protect people and property.
we have to distinguish between firefighting and fire alarm system. fire fighting is mechanical work (either sprinkler system or Foam or CO2 or FM200) and there is fire alarm or detection system this is an electrical thing that includes ( detectors an fire alarm system) for electrical control building we use FM200.
Fighting Fire with Fire was created in 1991.
deluge valve work from close position to open position to release the material to shut off the fire once it receive a signal from fire detector, installed in a system.
The Inspector's Test Valve in a fire sprinkler system is designed to facilitate routine testing and inspection of the system's water flow and pressure. It allows for the simulation of a fire event by enabling a controlled discharge of water, which helps ensure that the system is functioning properly. Additionally, it aids in verifying that the alarm system is operational, providing essential data for maintenance and compliance with safety regulations. Regular testing through this valve helps to identify any issues before they become critical.
On a ship certain decks/areas are assigned fire zones to aid in firefighting if such an event occurs. Additionally it helps the crew locate the fire use the internal fire fighting system (if available) such as a C02 extinguisher system to put out the fire.
The kinetic energy of the water is being converted into pressure energy and thus pressurised water kept in pipeline in fire fighting system.