DeZurik G Series Manual
For use with ptw & pfw tapered plug valves
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Also See for G Series:
- Instruction (19 pages) ,
- Manual (17 pages) ,
- Instructions manual (13 pages)
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Summary of Contents for DeZurik G Series
- Page 1 DeZURIK MANUAL G-SERIES ACTUATORS FOR USE WITH PTW & PFW TAPERED PLUG VALVES D10192 Instruction August 2012...
- Page 2 Recommended spare parts are listed on the assembly drawing. These parts should be stocked to minimize downtime. Order parts from your DeZURIK sales representative, or directly from DeZURIK. When ordering parts, please include the 7-digit part number and 4-digit revision number (example: 9999999R000) located on the data plate attached to the valve assembly.
- Page 3 DeZURIK MANUAL G-SERIES ACTUATORS FOR USE WITH PTW & PFW TAPERED PLUG VALVES Table of Contents Description - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
- Page 4 DeZURIK MANUAL G-SERIES ACTUATORS FOR USE WITH PTW & PFW TAPERED PLUG VALVES Description The Manual G-Series Actuator is designed to operate PTW and PFW Tapered Plug valves. Note: Valves equipped with this actuator do not provide dead-tight shutoff. Operation To operate the actuator, turn the operator (handwheel or chainwheel) to rotate the plug to the desired position.
- Page 5 DeZURIK MANUAL G-SERIES ACTUATORS FOR USE WITH PTW & PFW TAPERED PLUG VALVES Stop Adjustments (continued) Note: If the operator does not turn easily when pushing on the stop, the cover has rusted to the housing. Use a hammer and chisel to move the cover until the desired stop setting is obtained.
- Page 6 DeZURIK MANUAL G-SERIES ACTUATORS FOR USE WITH PTW & PFW TAPERED PLUG VALVES Actuator Installation 1. Place the valve plug in the position noted in ACTUATOR REMOVAL. 2. Line up the scribe marks made during actuator removal, then set the actuator on the valve so the valve shaft slides into the actuator gear sector.
- Page 7 DeZURIK MANUAL G-SERIES ACTUATORS FOR USE WITH PTW & PFW TAPERED PLUG VALVES Bearing and Seal Replacement (continued) 7. Remove the cover screws and cover from the actuator. Note: It may be necessary to drive a chisel between the cover and actuator housing to loosen the cover.
- Page 8 DeZURIK MANUAL G-SERIES ACTUATORS FOR USE WITH PTW & PFW TAPERED PLUG VALVES Changing Actuator Mounting Positions The actuator can be mounted in 30° increments around the valve stem. The procedure to change actuator mounting positions is dependent upon the mounting position desired. Refer to the valve Installation Drawing for a view showing all possible mounting positions.
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