A special fixed pipe system called a “water spray system” that is linked to a dependable pressurised water supply source and has water spray nozzles on it for use on the area or equipment that needs to be protected. By connecting to an automatic detection and alarm system, the system can be controlled automatically, manually, or both.

Water spray systems are typically used to protect openings in fire walls and floors as well as flammable liquid and gas storage tanks, pipes, pumping equipment, electrical equipment including transformers, oil switches, spinning electrical machinery, etc. from fire.