Bray Pneumatic Actuators & Accessories - Manual (Page 13)

All information herein is proprietary and confidential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc.
The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.
Pneumatic Actuator & Accessories
Series 05 : 13
Specifications and Operation
• Available for 2”-36” (50mm-900mm) valves
• Manually override pneumatic actuators or rotate
the valve when air pressure is not available.
• Excellent for the safe handling of spring return
actuators.
• Can be installed in the field with existing Bray
pneumatic actuators.
During pneumatic operation, the worm of the gear
unit is disengaged. Should the valve require opening
or closing in the event of power loss, manual rotation
of the declutch lever will provide a camming action
and engage the worm to the segmented worm gear,
allowing rotation of the valve using the handwheel.
Operation Any residual air pressure in the
pneumatic actuator must be vented before operation
of the Declutchable Gear Operator. Bray recommends
the use of a vent valve to block the incoming air supply
and vent residual air. Then engage the declutching
lever and rotate the valve using the handwheel.
When returning to automatic operation, disengage
the man-ual override by rotating the declutching
lever, turning the vent valve to off, then restoring
air pressure to the actuator.
SERIES 05
Series 05 Declutchable Gear Operator