HD Fire MV-A and MV-AS Medium Velocity Fire Nozzles
HD Fire Injectors MV-A and MV-AS (Brass), Open Mist Nozzles MV-B and MV-BS (Stainless Steel) are just as effective as the Tyco HV14 and HV17 open nozzles
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Detailed description of HD Fire MV-A and MV-AS Medium Velocity Fire Nozzles, Open Nozzles, Mist Heads
- Brass construction for Model MV-A and MV-AS
- Stainless steel construction for Model MV-B and MV-BS
Copper aluminum construction for Model MV-E
- HD® medium speed sprinkler is open type (non-automatic nozzle, designed for directional spray application in fixed fire protection system.Vector velocity sprinkler with external deflector nozzle) , discharge water in the shape of a droplet cone of the same size as the water is distributed evenly on the surface to be protected.
- Efficiently designed to apply water to vertical, horizontal, curved and irregularly shaped surfaces to allow cooling to prevent excessive heat absorption external fire and avoid structural damage or In some applications, sprinklers can be installed to control or extinguish a fire depending on the design water density according to the applicable code. They are used in deluge sprinkler systems for special hazardous fire protection application. and the intentions of a particular sprinkler system can vary considerably, MV nozzles are available in several combinations of hole sizes and spray angles. The minimum desired pressure to achieve a reasonable spray pattern is 1.4 Kg./Sq.cm. The water distribution pattern as shown in the graph in the next pages has an average pressure of 2.0 Kg/Sq.cm.
- Pressure change between 1.4 and 3.5 Kg./sq.cm. does not affect the appreciable change in injection angle. The spray patterns shown are with indoor application. The system designer must consider wind velocity while designing the system for outdoor application. Field clogging if any effect on the spray pattern of the nozzle must also be considered. The hose can be oriented to any position deemed necessary to conceal the hazard.
Specifications HD Fire MV-A and MV-AS Medium Velocity Fire Nozzles, Open Nozzles, Mist Heads
- Brass construction for Model MV-A and MV-AS
- Stainless steel construction for Model MV-B and MV-BS
- Copper aluminum construction for Model MV-E
- Size 1/2" BSPT or NPT
- Open hole design used in deluge sprinkler system
- Non-automatic fixed pattern, external deflection
- Discharge snakes
- Several combinations of different hole sizes and spray angles
- K Factor (Metric) - 18, 22, 30, 35, 41, 51, 64, 79, 91 & 102
- K-factor (US) - 1.26, 1.54, 2.10, 2.45, 2.87, 3.57, 4.48, 5.53, 6.37 & 7.14
- Spray angle - 65°, 80°, 90°, 100°, 110°, 120° & 140°
- Each faucet body is permanently marked with model number, batch number, spray angle, K factor & UL . mark - Material
- Brass, Bright Chrome Nickel or Natural Finish
- Standard - UL listed, FM approved and Lloyd's Register Type approved
- FM . approved plug-off
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