HALOGEN VALVE SYSTEMS Terminator, Installation, Operation And Maintenance Manual

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1/17 8.
open and parallel to the sidebars of the yoke,
rotate the drive shaft by hand to align the
bushing with the flats of the valve stem and
place bushing over valve stem.
5. The spring-loaded drive bushing at the base of
the actuator shaft should fully engage the
wrench flats on the valve stem and the clamp
arms should straddle the sides of the yoke.
6. Tighten the clamp knob finger tight while
rocking the actuator slightly back and forth.
This will assist in parallel alignment of the
actuator with the sides of the yoke, and the
actuator shaft will be concentrically aligned
with the valve stem. The horizontal position
of the ton container valve requires careful
attention to the alignment of the actuator
with the valve stem.
7. The clamp knob is only required to be
finger tight. This will securely hold the
Terminator in place on the yoke and
allow no rocking movement.
8. Check visually for proper alignment of the
actuator and the valve. If alignment appears
to be incorrect, loosen the clamp knob
slightly and adjust the alignment of the
actuator then retighten the clamp knob.
A. Opening the Valve
Before opening any chlorine valve, make sure that
the yoke or regulator clamp is tightened firmly.
Never reuse a gasket that has been previously
compressed.
It is recommended that all pressure
connections be made and tested as described in
The Chlorine Manual before operating the valve
actuator.
This will insure that the valve can be
operated manually and that leak testing has been
completed prior to installing the actuator.
B. In-Service Testing
With the system pressurized and the flow of chlorine
established, the emergency shutoff system may be
tested under actual conditions. This test is
recommended each time the actuator is installed on
a new cylinder or ton container to insure actuator has
been correctly installed, and that the operating
condition of the valve will permit proper closing of it
by the Terminator/Gemini system.
Confirm that the Gemini controller panel lights are in
the following normal conditions:
If an Armed/Ready light is OFF but the actuator is
connected to controller, attempt to reset controller
by pressing and holding the
TEST B key until the
BATTERY STATUS light turns OFF (+/- 6 seconds),
then release. The system will reboot after which all
status lights should indicate a normal condition.
This reset is required after every emergency
activation but is not required after a TEST key
activation.
If other lights are not properly indicating, see
TROUBLESHOOTING, Section XIII, on page 12.
With lights indicating a normal condition, depending
on the actuator you wish to test, press the
TEST A
or TEST B key. The actuator will immediately
activate and close the valve. A loud ratcheting noise
from the actuator during closure is normal. The
Armed/Ready lights will rapidly flash alternately ON
and OFF for approximately 10 seconds then return
to slow, synchronized (if two actuators connected)
flashing when ready for another close cycle.
Remove actuator from valve, check that all process
connections are secure, reopen the valve no more
than one full (1) turn, and check for leaks.
The force required to reopen the valve should
confirm that the actuator applied enough torque
to completely seat the valve stem. If valve does
not appear to have been properly closed, do not
place actuator in service!
C. Corroded Valves
Cylinder or ton containers left in dispensing service
for extended periods may develop corrosion or
fouling of the valve body, packing, packing nut, and
stem. This can substantially increase the amount of
torque required to close the valve
. In severe cases,
the increase in the torque required could exceed
the capacity of the actuator to close the valve.
LIGHT COLOR CONDITION
ARMED/READY GREEN FLASHING
BATTERY CHARGER STATUS AMBER STEADY ON
BATTERY STATUS AMBER STEADY ON
VI. Placing System In Operation
WARNING
If the valve cannot be readily operated both
manually and by the actuator, the cylinder or
container should not be placed in service under
any circumstances.