Argonite®
Effective: September 2004
System Description
F-38-2000
FEATURES
• Inert Gas Clean Agent Fire Suppression
• Safe for Personnel and Equipment
• Leaves No Residue
• Environmentally Friendly
• Actuation by Solenoid or Manual Actuator
• Three Available High-pressure
(2900 PSI [200 bar]) Cylinder Sizes
• FM Approved/ULC Listed
GENERAL INFORMATION
Fenwal Argonite® Fire Protection Systems are clean agent,
automatic extinguishing systems that use Argonite (IG55)
and consist of four basic components and their associated
accessories:
• Argonite Cylinders and Components,
• Completer Kits,
• Control Panels,
• Detection and Alarm Devices.
Argonite is an inert gas mixture, in equal parts, of Nitrogen
and Argon. Both substances are naturally occurring and
present in the atmosphere. Argonite is safe for use in
occupied spaces and poses no threat to the environment.
1. Argonite Components consist of the agent cylinders,
cylinder racking and the agent discharge nozzles.
2. The Completer Kits provide all the basic components
necessary to operate the Argonite cylinders. The kits
consist of hoses, connection fittings, pressure gauges,
actuation devices required to operate the cylinder valve
and warning signs to be displayed in the area(s)
protected by an Argonite fire extinguishing system .
3. The Control Panels vary in features and complexity but
in all cases are used to monitor the detection, actuate
the alarms, initiate the agent discharge and control
auxiliary functions such as shut down of vital equipment
and ventilation dampers.
4. The Detection and Alarm devices provide fire detection
by means of thermal or smoke detectors, audible and
visual pre-alarm warnings and annunciation of the
Argonite discharge.
AGENT DESCRIPTION
Argonite is a mixture of 50% pure Nitrogen and 50% pure
Argon. Argonite contains only naturally occurring
substances, and as such, has no ozone depletion potential
and no direct global warming potential.
Argonite extinguishes by means of reducing the oxygen
content within a room to the point at which fire can no longer
burn, but without compromising the safety of individuals
present. There are no toxicological factors associated with
the use of Argonite. Argonite will not decompose or produce
any by-products when exposed to a flame from a fire
condition.
Most Argonite systems are designed to extinguish fires with
a minimum agent concentration of 37.9% achieved within
one minute. This results in extinguishment of the fire and
an oxygen concentration of 13%.
Argonite is stored as a gas within the cylinder assembly. It
is available at a storage pressure of 2900 PSI (200 bar).
Usable Cylinder Capacity
Three cylinder sizes are available (see Table 1).
Table 1. Cylinder Capacity
Size
EQUIPMENT DESCRIPTION
The Fenwal Argonite Fire Protection System can be
released electrically, manually or pneumatically. The
following is a description of the various components
associated with the systems.
Fill
English
Metric
at 2900 PSI
at 200 Bar
972 cu. in.
15.9 L
9.57 lb.
4.34 kg
4079 cu. in.
66.7 L
40.15 lb.
18.21 kg
4893 cu. in.
80.0 L
48.13 lb.
21.83 kb
Cylinder and Valve Assembly
Argonite cylinders are available in three different sizes. The
2900 PSI (200 bar) cylinders are uniquely color coded to
allow for quick and easy identification. The cylinders are
red with yellow-green at the cylinder shoulder.
Because Argonite is stored as a gas, the cylinders have no
dip tube and can be mounted in either the vertical or
horizontal position.
The cylinder valve, required for all system cylinders, allows
for connection of the cylinders into the system. The
valve provides connections for electric, pneumatic and
manual release of the cylinder contents, as well as a
discharge outlet, connected by a discharge hose, to the
distribution piping.
The actuator operates on a 1 to 10 ratio requiring only
300 PSI (21 bar) for the 2900 PSI (200 bar) system to
operate the valve. The following are the connections
provided on the valve.
A
Figure 1. Argonite Cylinder
Table 2. Argonite Cylinder Area Coverage
Cylinder
Area Coverage @
38% Concentration/70°F (21°C)
15.9 L
228.8 ft.3 (6.47 m3)
66.7 L
959.8 ft.3 (27.17 m3)
80.0 L
1150.6 ft.3 (32.58 m3)
B
Figure 2. Cylinder Dimensions
Table 3. Cylinder Dimensions
Dimension
Cylinder Size
2
A
B
(Diameter)
15.9 L
39.07 in.
(992.38 mm)
7.00 in.
(177.80 mm)
66.7 L
64.41 in.
(1636.10 mm)
10.49 in.
(266.45 mm)
80.0 L
68.81 in.
(1747.77 mm)
11.25 in.
(285.75 mm)
SIDE VIEW
1. Manual/Pneumatic Actuator Connection:
Each cylinder valve must be fitted with either a Pilot or Slave
type actuator.
The Pilot actuator provides a manual (pull pin turn handle)
actuator and connections from an electrical solenoid and
pressure switch assembly. The pilot actuator also has
connections to adjacent slave cylinder actuators to discharge
entire groups of cylinders virtually simultaneously.
The Slave actuator is purely pneumatic; it receives
pressure from the pilot actuator and opens its associated
cylinder valve.
2. Solenoid Valve, Pressure Gauge and Supervisory
Pressure Switch Connection
This is a threaded port that serves for the connection of one
of the following:
• Solenoid Valve, Pressure Gauge and Supervisory
Pressure Switch for pilot actuator connections.
• Pressure Gauge and Supervisory Pressure Switch
for slave actuator connections.
3. Discharge Outlet.
The cylinder valve outlet is connected to the distribution
piping by a flexible hose with 1/2" steel fittings.
Additional features of the valve include a Burst Disc,
designed to rupture upon excessive internal pressure, and
an external Bleeder Valve with indicator that acts as a
pressure relief valve.
CYLINDER
VALVE
FRONT VIEW
HANDLE FOR
FILLING ONLY
M25 x 1.5
FILLING
OUTLET
M25 x 1.5
1/4” BSP
PILOT CONNECTION
FILLING
GAUGE PORT
BURST DISC
(21 PSI [300 BAR]
SETPOINT)
CONNECTION TO
ARGONITE CYLINDER
Figure 4. Argonite Cylinder Valve
Table 4. Argonite Cylinder and Valve Assembly Data
Part Number
Cylinder
Assembly
(Filled
Cylinder/Valve)
Description
38-200159-001
15.9 L
200 bar; DOT and TC versions
38-200667-001
66.7 L
200 bar; DOT and TC versions
38-200800-001
80.0 L
200 bar; DOT and TC versions
Note:
DOT=Department of Transportation (US)
TC=Transport Canada
COMPLETER KIT COMPONENTS
Either a pilot or a slave completer kit is required to complete
the installation of each Argonite cylinder.
Table 5. Completer Kit Data
PRESSURE GAUGE
WITH SUPERVISORY
PRESSURE SWITCH
Completer Kits
PILOT HOSE
(TO SLAVE CYLINDERS)
Description
Primary (Qty.)
P/N
38-109802-001
Slave (Qty.)
P/N
38-109803-001
Solenoid Valve
1
0
Pressure Gauge with
Supervisory Pressure Switch
1
1
Manual Release
1
0
Pilot Hose #1
1
0
Pilot Hose #2
1
0
Pilot Hose #3
0
1
Bleeder Valve
1
0
Tee piece for hose connection
2
1
Discharge Hose
1
1
Inlet Stem Assembly
1
1
SOLENOID, 24 VDC
DISCHARGE
HOSE
MANUAL ACTUATOR
Figure 3. Argonite Cylinder and Valve Assembly
Note: If cylinders are used in a Main/Reserve system, use decal
P/N 31033 (Main Decal) and P/N 31034 (Reserve Decal).
3
Solenoid and Pressure Gauge Assembly
with Supervisory Pressure Switch
The solenoid/pressure gauge assembly provides an
electrical means (24 Vdc) of actuating the system as
well as a visual means to determine the pressure within the
pilot cylinder.
This unit includes an integral supervisory pressure switch
and is supplied with a pilot flex hose #1. The supervisory
pressure switch consists of one normally open (N.O.) contact
that changes state upon loss of cylinder pressure.
Pilot Flex Hose #1, P/N 38-509818-001
This 1/4" ID reinforced rubber flex hose has threaded
connections to allow interface between the pilot cylinder
solenoid/pressure gauge assembly and pilot
manual/ pneumatic actuator. It is supplied with the pilot
solenoid assembly.
HIGH-PRESSURE
REINFORCED RUBBER HOSE
1/4 IN. (6.4 MM); 60° FLARE
SWIVEL NUT
1/4 IN. (6.4 MM) CONNECTOR
TEE FITTING, 19 MM HEX
(CONNECTION TO VALVE)
P/N 38-509816-001
15¾ IN. (400 MM) LONG
Figure 6. Pilot Flex Hose #1
TOP VIEW
(SHOWN ON CYLINDER)
BLEEDER VALVE
P/N 38-509840-001
Manual/Pneumatic Actuator, P/N 38-509841-001
The manual/pneumatic actuator supplied with the pilot
completer kit is required on the pilot cylinder to manually
actuate the cylinder valve as well as to supply pressure to
actuate any slave cylinders. Interconnection between
cylinders is by means of high-pressure flex hoses.
SOLENOID, 24 VDC
P/N 38-509834-001
GAUGE WITH
SUPERVISORY
PRESSURE SWITCH
P/N 38-109891-001
PRESSURE
INLET
SOLENOID,
24 VDC
CONNECTION
TO CYLINDER VALVE
36 MM HEX
MANUAL
PNEUMATIC ACTUATOR
P/N 38-509841-001
FRONT VIEW
SIDE VIEW
Figure 5. Solenoid and Pressure Switch Gauge Assembly
with Supervisory Pressure Switch
Pressure Gauge Assembly
with Supervisory Pressure Switch,
P/N 38-109891-001
This unit is required for the slave cylinders to provide a
local visual means to determine the pressure within the
slave cylinder.
The pressure gauge assembly includes an integral
supervisory pressure switch, consisting of one N.O. contact
that changes state upon loss of cylinder pressure.
TO TEE PIECE
Figure 7. Manual/Pneumatic Actuator
4
Tee Piece for Hose Connections,
P/N 38-509816-001
The tee piece is supplied with each of the completer kits. It
provides the interface with the pilot assembly (through a
high pres­sure flex hose) to simultaneously operate the slave
cylinder pneumatically.
Discharge Flex Hose, P/N 38-509819-001
This flex hose has 1/2" threaded connections to allow
interface between the cylinder valves and the discharge
manifold (if applicable). Where more than one cylinder is
connected to a common manifold, check valves are required
at the end of each discharge flex hose.
TO CYLINDER
VALVE ACTUATION
3/8 IN. (9.5 MM); 60° FLARE
SWIVEL NUT
1/2 IN. (12.7 MM)
SWIVEL NUT
3/8 IN. (9.5 MM) CONNECTOR
INLET FROM
SOLENOID OR
PRIMARY CYLINDER
OUTLET TO
ACTUATE CYLINDER
HIGH-PRESSURE
REINFORCED RUBBER HOSE
15¾ IN. (406 MM) LONG
Figure 10. Discharge Flex Hose
Check Valve Assembly, P/N 38-509833-001
To prevent accidental discharge of the Argonite into
unintended areas, a check valve is required for each
discharge hose in all multi-cylinder systems. All Fenwal Fire
Systems manifolds are constructed of threaded pipe
with welded check valve connections and include
pre­installed check valves. All customer connections are
via threaded pipe.
Note: For single cylinder systems, a 1/2" BSP x 1/2" FNPT
adapter is required to connect the discharge hose
(BSP) to the Schedule 160 pipe (NPT).
Figure 8. Tee Piece
Bleeder Valve for Actuator, P/N 38-509840-001
A bleeder valve is included with the Pilot Completer Kit to
prevent an accidental accumulation of pressure within the
pilot lines, which, if not bled to atmosphere, could cause a
false discharge. Connection requires a copper gasket
between the bleeder valve and pneumatic actuator.
CONNECTION FOR
MANIFOLD
3/4” NPT
Pilot Flex Hoses
This 1/4" ID reinforced rubber flex hose has threaded
connections to allow interface between components.
0.79 in.
(20 mm)
HIGH-PRESSURE
REINFORCED RUBBER HOSE
1/4 IN. (6.4 MM); 60° FLARE
SWIVEL NUT
2.24 in.
(57 mm)
1/4 IN. (6.4 MM) CONNECTOR
LENGTH
1.06
HEX
Figure 9. Pilot Flex Hose
Table 6. Pilot Flex Hose Data
Part Number
Description
0.59 in.
(15 mm)
1/2” BSP
Length
38-509817-001
Pilot Hose #3 between cylinder
actuation pieces
10-5/8 in.
(270 mm)
38-509820-001
Pilot Hose #2 between actuator and
cylinder valve
17-3/4 in.
(450 mm)
60°
CONNECTION FOR
DISCHARGE HOSE
Figure 11. Check Valve Assembly
5
NPT
Flow Restrictor
The restrictor assembly reduces the initial Argonite pressure
from the discharge manifold to between 174 and
870 PSI (12 and 60 bar) before entering the discharge piping.
The size of the orifice within the restrictor is determined
through calculations based upon the required flow and
discharge time.
Larger diameter restrictors, up to 4 in. (102 mm) connection,
are available for very large system requirements. An orifice
plate is custom drilled to the specific requirements of the
project as determined by computerized flow calculations.
Note: Flanged restrictor for large system requirements.
Only the orifice plate is provided.
NUT*
38-XX0003-XXX
ORIFICE PLATE
RESTRICTOR
CONNECTION FOR
DISTRIBUTION
PIPE WORK
STAMPED WITH
PART NUMBER
STAMPED WITH
ORIFICE DIA.
NPT
Figure 13. Restrictor Female NPT/Female NPT,
Sizes 1/2” to 2”
Table 8. Flow Restrictor Data
CLASS 1500#
FLANGE*
BOLT*
GASKET*
Part Number
FLOW
* PROVIDED BY
INSTALLER
Figure 12. Flow Restrictor
Table 7. Flow Restrictor Sizes
Part Number
Description
38-250001-XXX
2½" Flow Restrictor
38-300001-XXX
3" Flow Restrictor
38-400001-XXX
4" Flow Restrictor
6
Flow Restrictor FNPT x FNPT
Pipe Diameter (NPT)
38-050003-XXX
1/2 in. (15 mm) Brass, Code 035 to 075
38-100003-XXX
1 in. (25 mm) Brass, Code 050 to 130
38-150003-XXX
1½ in. (40 mm) Brass, Code 085 to 220
38-200003-XXX
2 in. (50 mm) Stainless Steel, Code 115 to 270
SELECTOR VALVES
Argonite systems are particularly suited to the use of selector
valves, where one central storage of agent is used to provide
protection to two or more hazard areas.
Selector valves are available in six sizes, and are
pneumatically operated. One common pressure regulator
and vented elbow are also required to reduce the actuation
pressure to each set of selector valves.
Nozzles
The brass discharge nozzles are available in four basic sizes
1/2", 3/4", 1" and 1½". Each is fitted with a drilled orifice to
assure proper flow rates, agent quality and proper discharge
timing as determined by flow calculations. Maximum nozzle
spacing for room mounted nozzles should not exceed
18.8 feet (5.7 m) square. Nozzle height should not exceed
16 feet (4.9 m) from a single layer of nozzles.
PRESSURE RELIEF DEVICE,
P/N 38-509836-001
CYLINDER MANIFOLD
OUTLET
REDUCING BUSHING*
FITTING TYPICAL
3000# MIN.
SELECTOR VALVE,
1/2” TO 2” NPT
NIPPLE TYPICAL
SCH. 160 MIN.
H
RESTRICTOR
1/2” TO 2” NPT
REDUCING BUSHING*
PRESSURE REGULATOR
WITH VENTED ELBOW,
P/N 38-509803-001
OUTLET FROM
RESTRICTOR TO
HAZARD #2
R
W
ACTUATION HOSE
TYPICAL,
120 PSI (8 BAR)
NORMAL WORKING PRESSURE*
HANDLE FOR
MANUAL OPERATION
OUTLET FROM
RESTRICTOR TO
HAZARD #1
Figure 15. Nozzles
Table 10. Argonite Discharge Nozzle Data
Argonite Discharge Nozzle
*NOTE: ALL FITTINGS, NIPPLES
AND HOSES ARE PROVIDED
BY INSTALLER
Figure 14. Selector Valve System
Table 9. Selector Valves and Components
Part Number
Part Number
Size
(R) NPT
Orifice
Dia. (1)
Height (H)
Width (W)
38-300502-XXX
1/2 in.
(15 mm)
3 to
10 mm
1-9/16 in.
(39 mm)
7/8 in.
(22 mm)
38-300752-XXX
3/4 in.
(20 mm)
7 to
14 mm
1-7/8 in.
(48 mm)
1-1/8 in.
(28 mm)
38-301002-XXX
1 in.
(25 mm)
10 to
18 mm
2-3/8 in.
(60 mm)
1-7/16 in.
(36 mm)
38-301502-XXX
1½ in.
(40 mm)
15 to
26 mm
3-3/16 in.
(81 mm)
2 in.
(50 mm)
Description
38-609800-001
1/2 in. (15 mm) Pipe Dia.
38-609800-002
3/4 in. (20 mm) Pipe Dia.
38-609800-003
1 in. (25 mm) Pipe Dia.
38-609800-004
1¼ in. (32 mm) Pipe Dia.
38-609800-005
1½ in. (40 mm) Pipe Dia.
38-609800-006
2 in. (50 mm) Pipe Dia.
38-509803-001
Pressure regulator kit with relief
120 PSI (8.3 bar) preset for selector valves
(1)
An orifice plate within the nozzle is custom drilled to the specific
requirements of the project as determined by computerized flow
calculations.
7
PRESSURE GAUGE
1/2” DISCHARGE
HOSE
PRESSURE SWITCH
WITH 1/2” FLEX CONDUIT
PILOT HOSE #1
PILOT HOSE #2
TEE FITTING
PILOT LINE
BLEEDER VALVE
TEE FITTING
MANUAL
ACTUATOR
FRONT
24 VDC SOLENOID
REAR
Figure 16. Typical Argonite Pilot Completer Kit
DISCHARGE HOSE
PILOT HOSE #3
PRESSURE GAUGE
WITH SUPERVISORY
PRESSURE SWITCH
PILOT LINE
BLEEDER VALVE
Figure 17. Typical Argonite
Pilot and Slave Completer Kit
Fenwal is a registered trademark of Kidde-Fenwal, Inc.
Argonite is a registered trademark of Ginge Kerr.
TM
R
Protection Systems
KIDDE-FENWAL, INC.
400 MAIN STREET, ASHLAND, MA 01721
TEL: (508)881-2000 FAX: (508) 881-8920
www.fenwalfire.com
This literature is provided for informational purposes only. KIDDE-FENWAL,INC. assumes no
responsibility for the product's suitability for a particular application. The product must be
properly applied to work correctly.
If you need more information on this product, or if you have a particular problem or question,
contact KIDDE-FENWAL INC., Ashland, MA 01721. Telephone: (508) 881-2000
F-38-2000
09/04
Kidde-Fenwal, Inc.
Printed in USA