Figure 1-9.--Hydraulically-operated remote control valve.
Hydraulically-Operated Remote
any control station when it has been actuated
automatically.
Control Valve
The hydraulically-operated remote control valve
Spring-Loaded Lift Check Valve
(fig. 1-9) is a diaphragm-operated, globe-type valve that
is opened by operating pressure acting against the
This valve (fig. 1-10) is a spring-loaded,
underside of the disk and closed by operating pressure
diaphragm-operated lift check valve that closes tightly
acting on the top of the diaphragm. The purpose of this
against reverse flow and opens wide to permit flow in
valve is to permit the magazine sprinkler valve to be
the normal direction. Spring-loaded lift check valves
secured from an operating station other than the one
permit the control system to be operated from more than
from which it was actuated. Additionally, this valve
one control station by preventing backflow through the
permits the magazine sprinkler valve to be secured from
other stations.
Figure 1-10.--Spring-loaded lift check valve.
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