Janus FM-200 Sv Series - 2.2 Trim Components

Page: 14
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
2.2 Trim Components
e following components complete the set up of any Sv, Mv, and Lv Series FM-200® System regardless of
the specic arrangement or number of cylinders utilized.
2.2.1 Pressure Gauge
A pressure gauge for each cylinder provides
a reliable means of monitoring the internal
pressure condition of the cylinder as mandated
by NFPA 2001. e Sv Series pressure gauge
diers from the Mv and Lv Series pressure gauge
in the method it is axed to the cylinder valve.
2.2.1.1 Sv Series Pressure Gauge
P/N 17556 (See Figure 2.2.1.1)
e Sv Series pressure gauge is factory mounted to the cylinder valve opposite the rupture disc.
The Sv Series pressure gauge is mounted directly to the cylinder valve and shall not be removed while the
contents are under pressure. Removal while the contents are under pressure will cause agent to escape through
the pressure valve connection and discharge the cylinder valve.
2.2.1.2 Mv and Lv Series Pressure Gauge Assembly
P/N 18772 (See Figure 2.1.3.3)
e Mv and Lv Series pressure
gauge has a swivel nut and O-ring
seal allowing it to connect to the
Mv and Lv Series cylinder valves
at the pressure gauge connection.
e pressure gauge ports of the
Mv and Lv Series cylinder valves
contain a Schrader valve that seals
when the gauge is absent. Refer
to Section 4.1.4.1 regarding
installation and removal of the
pressure gauge assembly.
1.062 in
26.97 mm
1.605 in
40.77 mm
1.605 in
40.77 mm
2.19 in
55.6 mm
Figure 2.2.1.2 Mv and Lv Series Pressure Gauge Assembly
Figure 2.2.1.1 Sv Series Pressure Gauge
The Mv and Lv Series pressure gauge assembly shall not be removed from the cylinder valve while the contents
are under pressure. Removal while the contents are under pressure may damage the O-ring seal or gauge,
requiring the replacement of the pressure gauge assembly.
The Mv and Lv Series cylinder assemblies shall not be transported with the pressure gauge assembly installed.
Remove the pressure gauge assembly from the cylinder valve before transporting the Mv Series or Lv Series
cylinder assembly.
O-Ring
1
(P/N 18582)
1. O-Rings must be ordered in packs of 25 as P/N 98791