High velocity and Medium Velocity water spray system
Secure tech Provide You Both High velocity and Medium Velocity water spray system.
High velocity systems
High velocity systems are often used to protect equipment that incorporate heavy or medium oils;equipment such as transformers, circuit breakers, diesel engines and fuel oil storage tanks, turboalternator lube oil systems and oil fired boilers. The high velocity nozzles are specifically designed to discharge a jet of water at high speed. The water jet forms a cone of coarse spray of uniformdensity which is discharged over a defined area. The coarse spray is able to penetrate the flamezone and reach the surface of the burning oil. The turbulence created by the high velocity spray forms an oil-in-water emulsion
on the surface of the oil that will not burn. This “emulsification” is the
principal way the fire is extinguished, along with a cooling and smothering effect.
Medium velocity sprayers discharge a water spray of finely divided droplets at medium velocity. They areideal for protecting hazards involving light oils where emulsification from high velocity sprayers is not possible. The fine spray has a high heat absorption rate so medium velocity sprayers are an effectivemethod of protecting adjacent plant and structures from heat during a fire by providing a continuouscooling spray over the exposed surfaces. Keeping nearby equipment cool minimises damage and reduces the risk of explosion.