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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
Figure 2.5.2a Lockout Valve
Figure 2.5.1.2 Manual Lockout
Figure 2.5.1.3.Position
Indicator Switch
2.5.1.2 Manual Lockout
Refer to Table 2.5.1.2 for P/N (See Figure 2.5.1.2)
An optional lockout may be placed on the pneumatically actuated valves to prevent accidental actuation.
ese lockouts use proximity switches to provide electronic verication that each lockout is in the correct
position. e proximity switches have NEMA 4, 4x, and 6 enclosures with 1/2 in (15 mm) FNPT conduit
connections. e switch has normally open contacts rated 0.3 Amp at 8 to 125 VDC or 24 to 125 VAC.
Table 2.5.1.2 - Manual Lockout w/ Proximity Switch
P/N Part Type
99455 Proximity Switch
99454 Manual Lockout, 1/2" - 2" Valves
99453 Manual Lockout, 3" - 4" Valves
99452 Manual Lockout, 6" - 8" Valves
2.5.1.3 Position Indicator Switch
P/N 99456 (See Figure 2.5.1.3)
An optional explosion-proof/weatherproof position indicator switch may be
mounted on the top of the pneumatic valve actuator to provide visual and/
or electronic conrmation of whether the valve is in open or closed position.
It has a green “open” indicator and a red “closed” indicator. e switch has a
NEMA 4, 4x, and 6 enclosure with one (1) 3/4 in (20 mm) NPT and one (1)
1/2 in (15 mm) conduit connection. e switch is double pull double throw
with contacts rated 10 Amps at 125/250 VAC and 0.5 Amp at 125 VDC.
2.5.2 Lockout Valves
Lockout valves are used any place in the FM-200® system where manual
isolation of pipe is required. Janus Fire Systems® FM-200® lockout valves
are available as 1/2 in (15 mm) through 2 in (50 mm) manually actuated
ball valves or 3 in (80 mm) through 8 in (200 mm) manually actuated
wafer valve. Optional stem extension and explosion-proof limit switch are
available. Refer to Appendix D for part numbers and ordering information.
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