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Description

HV High Velocity Water Spray Nozzles are internal swirl plate and open type nozzles designed for use in fixed water spray or deluge systems for fire protection applications. These nozzles produce a solid uniform and dense core of high velocity water spray for effective fire control. Nozzles are normally used to cool the surface as well as for extinguishments. Nozzles are typically used for deluge protection of special hazards such as oil filled transformers, switch-gear, chemical processing equipment, conveyor systems and flammable liquid storage areas. A minimum desirable pressure to achieve effective spray patterns is 50 psi (3.45 bar) (3448 kPa). The water distribution patterns presented in the following graphs show the maximum effective axial distance from the nozzle. The spray patterns shown are for indoor applications. The system designer must consider wind velocity while designing systems for outdoor applications. Field obstructions affecting the spray pattern of the nozzles must be considered. The nozzles may be oriented in any position which is deemed necessary to cover the hazard.

Listings and Approvals

1. Model HV spray nozzles are UL listed.

Technical Specifications

Working Pressure: 3,4-10,3 bar
Thread size: ¾” NPT
Material: Brass
Finish: Brass (optional: Nickel – Chrome Plated)
Weight: 181 g

Discharge Angle K-value A (mm) B (mm) C (mm)
75º 22 49 21 30
80º 18 44 21 30
90º 32 49 21 30
100º 26 55 21 30
115º 42 49 21 30
120º 23 49 21 30