Foam/water ESFR sprinklers for automatic fire-extinguishing
ESFR nozzle “Aqua-Gefest” К=362
Marking
ДУS0 – РНо(д)1,91 – R1/P57(68,79).B2 Aqua-Gefest
Description
Pendent ESFR Drencher “Aqua Gefest”.
Drencher have 3mm JOB bulb with 57°С and 68°С activation temperatures.
Drencher frames are made from brass and may have galvanic anti-corrosive cover (chrome) or polymeric cover in accordance with RAL catalogue.
Purpose
Drenchers are used automatic extinguishing installations for protection high-rack storages with stationary and movable racks of 12,5 meters high and for protection of compartments of 20m high as standard sprinkler.
Technical parameters
Operating pressure, МPа: water foam |
0,1–1,0 MPа 15–1,0 MPа |
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Sprinkler intensity at the 2,5m height and pressure: water foam |
0,48(0,90) 0,50(0,90) |
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Size | 90х 70 mm | ||||
K-factor, GPM/PSI (LPM/bar) | 25,0 (362) | ||||
Weight | 0,22 kg | ||||
Thread | R1 | ||||
Heat capacity index (m·s) ½ |
50 |
Diagram of irrigation intensity dependence on pressure at application of water (water solutions) and foam on 9,6 m2 protected area (one sprinkler)
Installation height 2,5m for upright water-mist sprinklers
water (water solutions)
foam
Drawing of irrigation intensity for upright ESFR sprinklers with capacity factor К=1,91/362/25,0
water (water solutions)
foam
Atomizer weight | 0,22 kg |
Connecting thread | R 1 |
Dimensions | 90х55 mm |
Drencher or Sprinkler | Drencher |
Installation orientation | Pendent |
K-factor | 25 (362) |
Outlet diameter | 24 mm |
Performance factor | 1,91 |
Protected area | 9,6 m2 |
Sprinkler flask diameter | 3 mm |
Sprinkler response temperature | 57°С, 68°С , 79°С |