Etna N-Pipe Type I-K1

Datasheet Sheet: Duct Protection
Open Low Pressure Water Mist system
Model: Etna N-Pipe Type I-K1
Description
The VID Fire-Kill Model Etna N-pipe Type I-K1
Water Mist System is a linear nozzle with the
length of 6m and is designed to fights duct fires
with pure water. The system is installed in
extraction ducts as close to one of the upper
corners for square ducts, and as close the upper
sides in round ducts as possible. The system will
cover the whole duct volume in a 6 meter duct. To
cover longer ducts more systems are connected
to each other. The system has been tested and
approved to cover any length duct when installed
throughout the duct and with duct cross sections
up to 0.3m x 0.6m for square ducts and a duct
cross section up to 0.57m in diameter for round
ducts.
The system is fast and simple to install and
requires the use of a minimum of pipe fittings. The
system is delivered in 6 meter N-pipe lengths with
pre-made threaded connections for VID Fire-Kill
K1 water mist micro nozzles. The nozzles are
installed with a spacing of 0.5m between each
nozzle on the pipe. A total of 12 K1 micro nozzles
are used per 6m N-Pipe.
N-Pipes are available in ø25 x 1,2mm with ¾”
BSP male/female end connections, and Ø28 x
1,2mm for connections with press-fittings.
Option: Plastic or Metal protection caps for BM1
micro nozzles are available. Extension nozzle kits
are also available for installation of the N-pipe
outside the duct, and the nozzles inside the duct.
Approvals:
The system has successfully been fire tested to
ISO 15371 fire test standard for water mist
systems for fire protection of duct conducted by
The Danish Fire Laboratories (DFL) and approved
by DNV for MED and Type approval.
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Overall Technical Data
Application
Duct Protection
General Stats
Minimum water pressure
6 bar
Maximum water pressure
16 bar
K-factor 6m N-pipe
10.8 (l/min/√bar)
(metric)
K-factor per micro nozzle
0.9 (l/min/√bar)
Nominal flow at minimum
26.45 l/min
water pressure
Drop size
DV90 < 300 μm
Application
Nozzle Spacing on N0.5 m
pipe (max)
Square
L:0.6m x
ducts
H:0.3m
Maximum ducts cross
section
Round
d: 0.57m
ducts
Maximum duct length
= 6m x no. of Etna systems
Specific Stats
Dimension
See fig. above
Pipe Dimensions
Ø25x1.2mm or Ø28x1.2mm
Weight
4.25 kg
Pipe material
SS AISI 316L
Micro Nozzle material
SS AISI 303
3/4” male/female ends or
28mm Open ends prepared
for press fittings
Hydraulic System
Water density ( area
7.38 mm/min
0.6m x 6m)
System operation time
> 15 min
Pipe ends
Related Products
VID Fire-Kill ApS,
Svalbardvej 13
DK-5700 Svendborg
Denmark
Tel: +4562621024, www.vid.eu
Name
Model
Control Valve
C-EL or SUFA100
Doc Name: Datasheet Model Etna N-pipe Type I-K1
Doc No.: 120604-02-02
v.1
Issue/ Date: 7th August 2012
Page: 1 of 2
Datasheet Sheet: Duct Protection
Open Low Pressure Water Mist system
Model: Etna N-Pipe Type I-K1
Installation and hydraulic calculation:
The Etna system should be hydraulic designed to
provide minimum water pressure of 6 bar and a
maximum water pressure of 16 bar on all K1
nozzles installed.
Installation example – Duct size W:0.6m x H:0.3m
x L:6m:
K
N-Pipes should be installed using hangers and
fittings which comply with N-Pipes in stainless
steel AISI316L. The system shall be flushed for
debris and impurities prior to K1 nozzles are fitted
the N-Pipes. In systems with nozzles having
protection caps, the protection caps are fitted after
the nozzle system has been functional tested.
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Contact
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For further information on the Model Etna or
related products, please contact our sales
department at Sales@vidaps.dk
Installation design with in duct:
°.
VID Fire-Kill ApS,
Svalbardvej 13
DK-5700 Svendborg
Denmark
Tel: +4562621024, www.vid.eu
Doc Name: Datasheet Model Etna N-pipe Type I-K1
Doc No.: 120604-02-02
v.1
Issue/ Date: 7th August 2012
Page: 2 of 2