Spray nozzle HV-AS

blow-offfor waterbrass

HD High Velocity Water Spray Nozzle is an open orifice and non-automatic directional spray nozzle. HV nozzle is designed for use in fixed water spray fire protection systems where a high velocity water application is needed. This includes applications such as protection of electrical transformers, circuit breakers, oil-fired boilers and lube oil systems. HV nozzle comes in various materials of construction and is UL Listed. • Non-automatic, open orifice, directional spray nozzle • Model - HV-AS in Brass material with Copper strainer • For high velocity water application for protection of flammable liquid and electric transformers • K-factor: K-22 x 75°, K-18 x 80°, K-26 x 100°, K-32 x 90°, K-42 x 115° and K-23 x 120° • ¾” BSPT/NPT connection • Nozzle also available with blow-off cap • UL Listed High Velocity Water Spray Nozzles are internal swirl plate type open nozzles designed for use in fixed water spray or deluge system for the fire protection application. These nozzles produce solid uniform and dense core of high velocity water spray to effect fire control. Nozzles are normally used to cool the surface as well as for extinguishment. High Velocity Water Spray Nozzles are typically used for Deluge protection of special hazards such as oil filled transformers, switch-gear, chemical process equipments, conveyor system and flammable liquid storage areas. The minimum desirable pressure to achieve a reasonable spray pattern is 3.5 Kg./sq.cm. (50 psi). The water distribution pattern is as shown in the graph in following pages giving maximum effective axial distance from the nozzle. The spray pattern shown is with indoor application.