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FM-200® OPERATION, DESIGN, & SERVICE MANUAL
Revision F
Document # DOC102
Issued: February 1, 2009
Revised: 11-Nov-2011
40YE
Section 2 System Description and Components
Primary
Cylinder
Slave
Cylinder
Slave
Cylinder
TO ZONE 1
DISCHARGE
NOZZLES
TO ZONE 2
DISCHARGE
NOZZLES
Selector
Valve
Lockout Valve
w/ Limit Switch
Optional
Regulator
(P/N 19170)
Discharge
Relief Valve
450 psi
(P/N 19317)
Discharge
Relief Valve
125 psi
(P/N 19316)
Discharge
Relief Valve
450 psi
(P/N 19317)
Required
when Optional
Lockout Valve
Installed
Discharge
Pressure
Switch
(P/N 18773)
Discharge
Pressure
Switch
(P/N 18773)
Figure 2.5a Selector Valve Arrangement - TYPE A
NOTE: The free ends of the
manifold (marked A and B on the
diagram) cannot exceed half the
width of the agent cylinder.
A
B
2.5 Selector Valve Components
(See Figure 2.5)
Multiple hazards can often be protected with a common set of cylinders by using selector valves. Selector
valves components are required in these specic cylinder arrangements that utilize selector valves to allow
the protection of multiple hazards or hazard zones by one set of FM-200® cylinders.
ere are typically two types of selector valve arrangements utilized for multiple hazard protection with a
common set of agent cylinders.
• TYPE A - e Type A arrangement consists of the selector valves mounted directly on the cylinder
manifold. is arrangement does not require pipe modeling or performing a selector valve manifold
calculation. However, the free ends of the manifold cannot exceed half width of the agent cylinder when
installed using this arrangement. Refer to Figure 2.5a.