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DeZURIK

Manual G-Series Actuators on PEC Eccentric Valves

Description

The manual operated G-Series actuator is designed to operate a PEC Eccentric valve. Integral stops

limit actuator stroke for both the open and closed valve positions. This actuator is available in three

sizes: Size 6, Size 12 and Size 16. See Figure 1 to identify which unit you have.

This actuator can be furnished with either cast iron or ductile iron gears.

The ductile iron gear is necessary for submerged or buried service valves or when a 2"

operating nut is installed on the input shaft. Breakage of the gear teeth will occur if cast

iron gears are torqued above 200 ft-lb's.

Cast Iron & Ductile Iron are similar in appearance: To determine if the gear material is ductile

iron, remove the cover as described in the ACTUATOR DISASSEMBLY Section. Size 6 gears

have "M199" cast in raised letters on the round surface opposite the teeth. Size 12 & Size 16

gears have "M199" cast in raised letters on either the top or under side of the web between the

hub and the teeth, removal of the gear is necessary to see the marking. If there is no "M199"

on the gear, the material is cast iron.

D10063

Figure 1— G-Series Actuator Identification

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August 2012