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DF C Valve Actuator O p e ra t io n, Pa r t s a nd I ns t r uc t io n Ma n ua ls Figure 1 Model DFC Actuator and DF2000 Valve Dyna-Flo DFC Operation, Parts and Instruction Manual Table of Contents Actuator Specifictions...
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When combined with a Dyna-Flo Model DF2000 or 360 control valve, the DFC is part of a rugged control valve assembly, to which a wide variety of controllers and instruments can be attached.
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Capabilities NOTES: 1 These values also apply to the DFC Size 3220-4 actuator. 2 Actuator travel may be less than the value listed after connected to the valve. 3 Maximum actuator travel for the 3220-4 is 4 inches (102 mm).
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(Key 22) between the actuator stem (Key 3) and the valve stem (Key 31). Except for the DFC Size 3220, the stem Figure 2 Rigging Setup connector assembly (Key 22) will need to be installed to prevent the stem from rotating while adjusting the bench set.
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5 Psi (34 kPa) to the actuator and note incorrect or damaged spring may be the where stem travel stops, this should occur problem. Contact your Dyna-Flo Sales when the travel stop (Key 10) encounters the Office for more information.
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Figure 4 Yoke Nut Tightening Stem Connector Installation Apply upper loading pressure plus 5 Psi (34 kPa) to the actuator if loading pressure was not applied prior to mounting. This should put the Dyna-Flo Control Valve Services Ltd. Phone: 780 4000 • •...
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Using a pair of pliers or other tool, remove the actuator is secured in place and properly snap ring (Key 14) from the yoke (it sits overtop of the bushing (Key 15). Replace if necessary. supported. Dyna-Flo Control Valve Services Ltd. Phone: 780 4000 • •...
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By threading the spring adjuster part (Key 1) (on a DFC size 3220 actuator there is way onto the actuator stem the assembly may an o-ring in place of the gasket). The holes of be inserted up into the yoke and used as a plunger to push out the bushing.
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In a circular pattern re-tighten the casing cap screws (Key 18) to full torque. Refer to Bench Setting Actuator portion of manual to complete the actuator assembly. Figure 5 Actuator & Valve Mounting Diagram Dyna-Flo Control Valve Services Ltd. Phone: 780 4000 • •...
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For down travel stops relieve any spring pressure or compression before you start the disassembly process, this can be done by lowering the spring adjuster (Key 21). Dyna-Flo Control Valve Services Ltd. Phone: 780 4000 • •...
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Figure 6 Model DFC Actuator Cross Section (2 Piece Diaphragm Plate Design) Our Commitment of Quality Dyna-Flo is committed to continuous improvement. All efforts have been taken to maximize the accuracy of this information. Without notification, product specifications and designs may be modified at any time. The issue of this document is for information only, and does not imply suitability, a warranty, or guarantee for a specific service.
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O p e ra t ion , Par t s a nd In s t r u c t io n M a nu a ls * Note: part of valve body assembly. Figure 7 Model DFC Actuator Cross Section Dyna-Flo Control Valve Services Ltd. Phone: 780 4000 •...
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O p e ra t io n, Pa r t s a nd I ns t r uc t io n Ma n ua ls TYPE 3 DOWN STOP DFC TYPE 4 UP STOP DFC TYPE 5 UP STOP DFC Figure 8 Model DFC Actuator Cross Section Dyna-Flo Control Valve Services Ltd. Phone: 780 4000 • • Toll Free: 1 2356 •...
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Valve Actuator O p e ra t ion , Par t s a nd In s t r u c t io n M a nu a ls Dyna-Flo DFC / DFO Series Actuators | Model Numbering System Sample Part Number...
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