N - Full cone spray nozzle for offshore fire protection

N full cone nozzle is designed specifically with critical fire and explosion suppression applications in mind. The N nozzle creates fine atomisation and a large surface area of the spray, which improves evaporation and cooling.

Nozzle sizes N1 - N3W are supplied with an integrated 24 mesh strainer in 316SS. All nozzles have Factory Mutual, Lloyd's Register and UL Approval certifications. N3 - N5W also have U.S. Coast Guard Approval.

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Robin Ryberg Dysor & spraysystem, Tankrengöring, Tryckluftsprodukter
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N fullkonsdysa är speciellt framtagen för olika kritiska brandbekämpningsapplikationer. N är en spiraldysa som ger en spray med fin atomisering, vilket främjar evaporering och kylning. N-dysan levereras med ett integrerat filter och ett slyddande hölje som tillval.
FM Approved
Logotypen för UL Approval
Logotypen för Lloyd's Register Approval.
Illustration av hur sprayen skapas av en spiraldysa med fullkonsspray. Spraybilden skapas genom att vätskan skär längs spiralen och bildar flera koncentriska koner. Konerna bildar 2 till 3 ringar av relativt stora droppar, omgivna av bredare band av relativt små droppar.
N fullkonsdysa är speciellt framtagen för olika kritiska brandbekämpningsapplikationer. N är en spiraldysa som ger en spray med fin atomisering, vilket främjar evaporering och kylning. N-dysan levereras med ett integrerat filter och ett slyddande hölje som tillval. FM Approved Logotypen för UL Approval Logotypen för Lloyd's Register Approval. Illustration av hur sprayen skapas av en spiraldysa med fullkonsspray. Spraybilden skapas genom att vätskan skär längs spiralen och bildar flera koncentriska koner. Konerna bildar 2 till 3 ringar av relativt stora droppar, omgivna av bredare band av relativt små droppar.

Design features

  • Fine atomisation
  • The large surface area of spray improves evaporation and cooling
  • Large free passage
  • All N1-N3W nozzles are provided with an integral strainer
  • Optional protective cover. See Datasheet regarding requirements for use of protective cover.
  • Certifications: Factory Mutual, UL Approval, Lloyd's Register, N3-N5W: U.S. Coast Guard Approved
Spray pattern Spiral nozzle - Full cone
Spray angle 90°, 120°
Flow rate 11.4 - 2260 l/min
Material - Standard Brass, 316
Material - Other See Datasheet
Connection 1/2", 1", 1 1/2" BSP/NPT
Filter 316, 24 mesh
Dimensions See Datasheet

Flow rates, spray angles & connections

If a specific pressure is not listed below or in the nozzle datasheet, it is possible to calculate the nozzle flow rate at a given pressure by using the equation at the bottom of the datasheet.

Flow rate (l/min) @ Differential pressure (bar), Density (1 SG)
Nozzle number Connection Spray angle 0.7 bar 1 bar 3 bar 5 bar 7 bar 10 bar
N1 1/2" 90°, 120° 11,5 13,7 23,7 30,6 36,2 43,3
N2 1/2" 90°, 120° 20,2 24,2 41,9 54,1 64,0 76,5
N3 1/2" 90°, 120° 31,5 37,6 65,1 84,1 99,5 119
N4 1/2" 90°, 120° 45,9 54,9 95,1 123 145 174
N5 1/2" 90°, 120° 63,0 75,3 130 168 199 238
N6 1/2", 1" 90°, 120° 80,1 95,7 166 214 253 303
N7 1" 90°, 120° 128 153 265 342 405 484
N8 1 1/2" 90°, 120° 181 216 374 483 571 683
N9 1 1/2" 90°, 120° 246 294 509 657 778 930
N10 1 1/2" 90°, 120° 322 385 667 861 1020 1220
PDF

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Datasheet N Datasheet N FM Approved BETE Catalogue Metric

Choose the right spray nozzle for an optimised spray process

Each type of nozzle has a specific flow rate, spray pattern and droplet size. To optimise the spray process, it is important to understand how different parameters affect the choice of spray nozzle and type of solution.

The Knowledge base contains information about spray pattern, droplet size, flow rate/pressure, spray coverage, materials, etc. The 'Materials' section of the Knowledge base lists the most commonly requested materials and maximum temperature of the material.

To the knowledge base Spray nozzles & systems

Our main supplier is BETE, a leading manufacturer of spray nozzles and spray systems with more than 70 years of experience in spray processes and a product range including over 20,000 components.

BETE's spray technology is used worldwide to optimise processes in many different industries, including the energy sector, chemical and petrochemical industry, food industry and offshore.

Some of BETE's certifications include ISO 9001:2015, ATEX and FM Approval.

BETE Performance Spray Engineering

BETE offers test facilities, CFD modelling, and advanced technical support. To ensure high quality and reliable deliveries, BETE's manufacturing is largely based 'in-house' with its own foundry, CNC machining, assembly and quality control.

BETE Certifications & Approvals

Click the button below for a full list of BETE's certifications. It is also possible to download some certificates.

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