Auto-Spray Nozzles

- Auto Spray Nozzles

MODELS: High Velocity/Full Cone/Directional
Narrow Angle - Type NA - 60° Pattern
Medium Angle - Type MA - 90° Pattern
Wide Angle - Type WA -120° Pattern
Long Throw - Type LT - 40° Pattern


Type NA Narrow Angle	Type MA Medium Angle		Type WA Wide Angle

“SPRAY NOZZLES” are the most efficient method of applying water on such fires involving flammable liquids or solids those are violent and stubborn to extinguish. These nozzle provides a high velocity Directional spray, designed to impart sufficient velocity to the water spray to prevent dissipation of discharge before it reaches the surface to be protected. Interior spiral deflectors and a center jet break the water into a directional full cone spray.

NNI SPRAY NOZZLES” are manufactured in a ISO 9001 certified plant and are designed for use with deluge-type systems operated by separate detection, such as rate-of-rise, vapor, smoke, electronic or photo-electric detection units. They do not employ a fusible link element. Possible objectives of an “SPRAY NOZZLES” system as per NFPA #15 are:
1. Extinguishment of fire
2. Control of burning
3. Exposure protection
4. Prevention of fire.

These Nozzles produce a coherent, uniform pattern which can be aimed at the specific area to be protected. They have relatively large water way which makes clogging from foreign material unlikely. It is therefore not necessary to remove and clean each nozzle after operation. A self-cleaning strainer is normally installed in the water supply line to prevent any foreign material from entering the system.

The design is such that a stream of water entering the nozzle is split into two segments. The first segment is directed by turbine vanes at the second segment, which flows straight through the nozzle in such a way that a controlled turbulence is produced at the orifice and breaks up the stream. The arrangement and number of these internal vanes produces the great variety of available patterns, and also atomizes the water spray so that uniform discharge throughout the pattern can be achieved. These are generally made in Brass but are available in Stainless Steel also.

NNI Spray Nozzle Data Sheet

NNI Nozzle Model No.	Ref: Automatic Sprinkler Auto Spray Nozzle No.	Pipe Connection Male NPT	Nozzle Discharge Angle	K Factor	Discharge at 30Psi in gpm	Ref: Automatic Sprinkler Stock code No.	Submittal check one
Spray Nozzle Narrow Angle 60°
NA0.9	5NA	3/4"	60°	0.9	4.9	1415403	-
NA1.2	7NA	3/4"	60°	1.2	6.6	1415404	-
NA1.4	8NA	3/4"	60°	1.4	7.7	1415405	-
NA1.8	10NA	3/4"	60°	1.8	9.9	1415406	-
NA2.2	12NA	3/4"	60°	2.2	12.0	1415407	-
NA2.6	14NA	3/4"	60°	2.6	14.2	1415408	-
Spray Nozzle Medium Angle 90°
MA1.5	8MA	1"	90°	1.5	8.2	1415409	-
MA2.3	13MA	1"	90°	2.3	12.6	1415410	-
MA2.7	15MA	1"	90°	2.7	14.8	1415411	-
MA3.4	19MA	1"	90°	3.4	18.6	1415412	-
MA4.0	22MA	1"	90°	4.0	21.9	1415413	-
MA4.8	26MA	1-1/4"	90°	4.8	26.3	1415414	-
MA5.1	28MA	1-1/4"	90°	5.1	27.9	1415415	-
MA7.0	38MA	1-1/4"	90°	7.0	38.3	1415416	-
Spray Nozzle Wide Angle 120
WA1.8	10W A	1"	120°	1.8	9.9	1415417	-
WA2.6	14WA	1"	120°	2.6	14.2	1415418	-
WA3.3	18W A	1-1/4"	120°	3.3	18.1	1415419	-
WA5.3	29W A	1-1/4"	120°	5.3	29.0	1415420	-
Spray Nozzle Long Throw 40°
LT2.8	15LT	1"	40°	2.8	15.3	1415400	-
LT4.1	22LT	1"	40°	4.1	22.5	1415401	-
LT5.7	31LT	1-1/4"	40°	5.7	31.2	1415402	-

Auto-Spray Nozzle Narrow Angle 60°

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