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NOHMI BOSAI NN83CU Storage Cylinder

Made in Japan
Manufacturer: NOHMI BOSAI
Model: NN83CU

Features of NN83CU

  • UL Listed to UL2127.
  • New Seamless Steel Cylinder.
  • High Pressure System, 27.9 MPa (4047 psi).
  • Equipped with the Automatic Pressure-Regulating Valve.
  • Low Cost to Refill.

Description

  • The N₂ storage cylinder, model NN83CU, is used as a component of the NN100 Fire Extinguishing System.
  • This cylinder, which has an actual volume of 83 liters (2.93 ft³), is filled with pure Nitrogen compressed gas and will provide a free agent volume of 20.3m³ (716 ft³) at 0.1014MPa, 20°C (14.7psia, 68°F), when pressurized to 27.9MPa, 20°C (4047 psi, 68°F).
    All cylinders are equipped with an automatic pressure-regulating valve.
  • This valve quickly discharges the agent and has a mechanism which controls the discharging pressure to less than the pilot pressure, 10.0MPa at 20°C (1450psi at 68°F).
    The cylinder is made of seamless steel and complies with the High Pressure Gas Safety Law of Japan.

Specification of NN83CU

Item Specification
Part number U4001
Model NN83CU
Standard JIS B 8241 (Japanese Standard)
Water Capacity 83.0 L
Filling Volume 20.3m³ at 20°C (716 ft³, 68°F)
Operating pressure (at 20°C) 27.9 MPa (4047 psi, 68°F)
Test pressure 50.0 MPa (7251 psi)
Cylinder Valve Approx. 10.0 MPa at 20°C (1450 psi, 68°F)
Cylinder Dimensions Approx. 1175mm (72.44″) (H)
Temperature range -20°C to 54.4°C (-4°F to 130°F)
Tare Weight (Except with agent) Approx. 69.5 kg (153.2 lbs)
Material Cr-Mo Steel
Finished Color Munsell No. 6-N

Operation Flow Chart

System Layout

NN83CU

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