High medium velocity water spray system

This “emulsification” is the principal way the fire is extinguished, along with a cooling and smothering effect. The shape of the spray cone, the fire area contacted and the water flow is all controlled by the nozzle specifications – the orifice size and the shape of the internal swirl plate – along with the water pressure and the orientation of the nozzle.

Medium velocity sprayers discharge a water spray of finely divided droplets at medium velocity. They are ideal 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 effective method of protecting adjacent plant and

structures from heat during a fire by providing a continuous cooling spray over the exposed surfaces.
Keeping nearby equipment cool minimizes damage and reduces the risk of explosion. Medium velocity sprayers can be used in combination with other fire fighting systems – dry chemical and foam can be used effectively under the discharge. The fine spray also works to dilute and disperse flammable vapors. The sprayers use an external deflector to achieve the desired discharge angle and spray characteristics. Wormald engineers will select the correct sprayers with flow rate, discharge angle and droplet size to best suit your application. Medium velocity sprayers use water economically and so can be used for long periods if required.