4.1.17 Pneumatic Actuator and Support Bracket Assembly
The pneumatic actuator/support bracket and interconnecting key assembly is used to close the
chlorine container valves. The pneumatic actuator is set for a specified torque of 20-30Nm which is
sufficient to tightly close the container valves.
To attach the actuator to the drum or cylinder just simply slip on the bracket and interlocking key over
the valve and attach it to the spindle on the valve. A slight alignment of the interlocking key to the
spindle can be done by simply turning the actuator manually with your fingers or open end spanner.
To fix the support bracket to the container valve a simple G Clamp is used. It is essential that the G
Clamp is tightened firmly to ensure all the torque from the actuator is transferred to the valve spindle
and not the support bracket. If the bracket is not firmly tightened the valve will still be closed to the
required torque but it may be difficult to remove the support bracket due to the torque being applied to
the bracket rather than the valve spindle.
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