KOW model nozzles are used to cool tanks which distribute water in a flat curtain pattern. Tank Cooling Nozzles are typically mounted in an upright position at a distance from the exterior wall of the tank for cooling the storage tank surfaces. In the case of fire in the vicinity of the tank it prevents the tank from absorbing the heat radiation. Their round outlet orifice, with no internal vanes, means optimum clogging resistance and hence high reliability. Tank Cooling Nozzles are available in Brass and Stainless-Steel. Connection to the fire network is NPT or BSP threaded with dimension of DN 15- ½”, flow rates are factory calibrated up to Metric K factor 95 l/min * bar1/2.