Tyco Fire Suppression & Building Products ANSUL AQUASONIC, Руководство по проектированию, установке, заправке и обслуживанию

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APPENDIX A
3-1-2010 Page A-1
Selector Valves
Usage
Selector valves are used when two or more hazard enclo-
sures will be protected with a single supply. Up to eight
hazard enclosures may be protected by a single supply:
limited by the distance to the supply (based on design
calculations) and the number of outputs on the control
panel. Selector valves are operated pneumatically or electri-
cally depending on the design of the system. When electri-
cal operation is required, electrically operated valves may
be used or a solenoid valve mounted in the actuation line
directs actuation line pressure from the ANSUL AUTOMAN
II-C release to the appropriate pneumatic selector valve
assembly. Pneumatic selector valve assemblies may be
used in conjunction with optional pneumatic remote actua-
tors where required.
DESCRIPTION
Pneumatically Operated Selector Valves
An AQUASONIC pneumatic selector valve assembly
consists of the following:
• A pneumatically operated 3/4 in. selector valve for water.
• A pneumatically operated 1 1/2 in. selector valve for
nitrogen.
• Brass inlet and outlet piping with union couplings for both
valves
• A regulator to control the pneumatic actuation pressure.
• Actuation line connections and check valves.
• A poppet-style purge valve to relieve the actuation line
pressure.
• An over pressure relief valve for the actuation line.
• A mounting plate.
Actuation line pressure to the selector valve is regulated at
50 psi (3.4 bar). Once activated, the selector valve will
remain open until the actuation line pressure is purged from
the actuation line.
FIGURE 1
3/4 IN.
DISCHARGE
SELECTOR
VALVE
1 1/2 IN. DISCHARGE
SELECTOR VALVE
VISUAL INDICATOR
3/4 IN.
WATER INLET
3/4 IN. WATER
OUTLET
1 1/2 IN.
NITROGEN
INLET
A
A
B
1 1/2 IN. NITROGEN
OUTLET
PURGE
VALVE
1/4 IN. INLET
FROM SOLENOID
VALVE OUTLET
OVER PRESSURE
RELIEF VALVE
1/4 IN. TO CHECK
VALVE ON SKID
ACTUATION LINE
1/4 IN. FROM
OPTIONAL
MANUAL
REMOTE
ACTUATOR
1/4 IN.
REGULATOR,
PRESET 50 PSI
(3.4 BAR)
008240
008241
1/4 IN. CONTROL LINE
SELECTOR VALVE
PORT TO
CONNECT TO
MANIFOLD
PORT TO CONNECT
TO MANIFOLD
OUT TO
SELECTOR
VALVE
ASSEMBLY
IN TO SKID FROM
SELECTOR VALVE
ASSEMBLY
B
C