DeZURIK
D10456 Page 4 August 2012
Description
The manual operated G-Series actuator is designed to operate a PEF 100% Port Eccentric plug valve.
External adjustable stops limit actuator stroke for both the open and closed valve positions. This
actuator is available in two sizes: Size 6 and Size 12. See Figure 1 to identify which unit you have.
Figure 1— G-Series Actuator Identification
Operation
Rotating the operator (handwheel, chainwheel or 2” nut) clockwise closes the valve. Counterclockwise
rotation of the operator opens the valve. To actuate the valve from full open to full closed (or vice-
versa), the Size 6 requires 13 revolutions and the Size 12 requires 19 revolutions of the operator.
Tools Required
This actuator is assembled using metric fasteners. To service this unit, you should have a full set of
combination or ratchet wrenches, Allen wrenches, flat tipped screwdrivers, a 1/4” pin punch and a dead
blow hammer.
Lubrication
The G-Series actuator has been lubricated at the factory and requires no routine maintenance
lubrication. If the actuator requires disassembly, see the ACTUATOR DISASSEMBLY AND
ASSEMBLY section in this instruction for disassembly, lubrication and assembly procedures.
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