Open Water Fire Sprinkler (Spray Nozzles) – UL LISTED

د.إ50.00 د.إ45.00

Open Water Fire Sprinkler (Spray Nozzles) – UL LISTED

Used with Foam system and Water Spray deluge cooling system

Medium & High velocity ,with different angle and K discharge factor.

Chrome & brass Body

Description

MEDIUM VELOCITY WATER SPRAY NOZZLE– UL LISTED

1.0Connection Size1/2″ BSPT (15 mm)
2.0QuantityAs required
3.1TypeNon clogging
3.2Nozzle K FactorK- [20, 22, 25, 30, 35, 41, 51, 64 & 79]
3.3Nozzle Spray Angle120  + 3 , 100  + 3
4.0ApplicationFire Water Service
5.1Working Pressure1.4 to 3.5 Kg/sq.cm
5.2Hydro Test Pressure15 Kg/sq.cm
6.0Working PrincipleForeign/solid free clear water at rated pressure enters nozzle and passes through nozzle chamber to impinge on deflector. The impingement breaks the water jet into macro particles and produces pre-designed angle of conical spray at medium velocity; the deflectors determine the pre‑designed angle. The flow at specified pressure is determined by the K-factor of the design, which is pre-designed.

 

7.0Material of construction
PartDescriptionMaterial Specification
1.0YokeBrass
2.0DeflectorBrass IS: 2768
3.0Nozzle AssemblyBrass; IS: 319; Grade – I
4.0FinishNickel Chromium Plated

HIGH VELOCITY WATER SPRAY NOZZLE

1.0Connection Size¾” BSPT (20 mm)/ ¾” NPT
2.0QuantityAsrequired
3.1Nozzle K FactorK-[20,27,31,37]+ 10%
3.2Nozzle Spray Angle55o + 10o 80o + 10o
4.0ApplicationFire Water Service
5.1Working Pressure3.5 to 5.5 Kg/sq.cm
5.2Hydro Test Pressure15 Kg/sq.cm
6.0Working PrincipleWATER AT SCHEDULED PRESSURE ENTERS NOZZLES THROUGH INTEGRAL STRAINER AND FOREIGN SOLIDS ARE STRAINED.
THIS CLEAR WATER NOW PASSESS THROUGH SPIRACLE WITH ONE CENTRAL ORIFICE AND/OR THREE PERIPHERAL VEINS INTO VORTEX CHAMBER.
THE VANES INDUCE VORTEX BY PROVIDING RIFLING MOTION TO WATER INSIDE THE WATER THROUGH THE CENTRAL ORIFICE IMPINGES ON THIS RIFLING WATER AND BREAKS THE VORTEX.
THIS ACTION CAUSES THE WATER TO BREAK INTO MICRO PARTICLE AND COME OUT THROUGH THE NOZZLE UNDER VELOCITY HEAD AT PREDESIGNED ANGLE OF CONICAL SPRAY AT HIGH VELOCITY.
7.0Material of construction
PartDescriptionMaterial Specification
1.0TIPBrass IS:319 GR I
2.0BODYBrass IS:319 GR I
3.0INTERNALBrass IS:319 GR I
DIFFUSERLDPE IS:3395
4.0STRAINERLDPE IS:3395/Cu
5.0FINISHNATURAL/CHROMIUM PLATED/POWDER COATED
NOTE : Strainer for K 20 & Below nozzles only