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Dyna-Flo DFR 026 Operation, Parts, And Instruction Manual

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Model DFR 026 Rotary Actuator
Operation, Parts, and Instruction Manual

TABLE OF CONTENTS

Dyna-Flo Control Valve Services Ltd.
Phone: 780
469
4000
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Toll Free: 1
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2356
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Fax: 780
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Figure 1 DFR 026
and 571 Control Valve
P-DFR1M0918A
Website: www.dynafl o.com
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Summary of Contents for Dyna-Flo DFR 026

  • Page 1: Table Of Contents

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual Figure 1 DFR 026 and 571 Control Valve TABLE OF CONTENTS General Actuator Assembly Scope Bushing Installation Principles of Operation Mounting Yoke / Hub Assembly Safety Caution Spring / Adjuster / Seat Assembly Specifi...

  • Page 2: General

    Operation, Parts, and Instruction Manual NOTICE These instructions are meant to be used with the Dyna-Flo DFR Technical Sales Bulletin as they refer to Figures and Tables therein. If you do not have the Technical Sales Bulletin, contact Dyna-Flo immediately, or visit www.dynafl...

  • Page 3: Specifi Cations

    Shaft Connection Types Construction Materials The standard shaft connection is a splined shaft suitable for a See Parts list for construction materials. Dyna-Flo 570 control valve. Contact your Dyna-Flo sales offi ce for more information and other options. Options Manual override •...

  • Page 4: Unpacking

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual INSTALLATION UNPACKING VALVE FROM SHIPPING Before You Begin: CONTAINER • Read the General and Scope section of this manual (Page 2). Special Tools Required: • Read Safety Caution (Page 2).

  • Page 5: Actuator Mounting

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual ACTUATOR MOUNTING Before You Begin: • Read the General and Scope section of this manual (Page 2). • Read Safety Caution (Page 2). • Use safe work practices and lock out procedures.
  • Page 6 Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual OPERATING PRESSURE SUPPLY LINE - WITH MAXIMUM OPERATING PRESSURE APPLIED TO ACTUATOR. UP STOP (KEYS 20 & 21) VALVE BALL NOT 100% CLOSED. Figure 4 Actuator/Valve Body Bolting ACTUATOR MOUNTING (Continued) Slide the actuator onto the valve shaft as shown in Figure 3.

  • Page 7: Spring Adjustment

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual ACTUATOR MOUNTING (Continued) • Vent any pneumatic actuator loading pressure. • Relieve process pressure and drain the process fl uid from up 12 Slowly stroke the actuator until the maximum operating and down stream of valve.

  • Page 8: Stroke Range

    To shift the casing pressure span upward – rotate the INITIAL SET (Continued) spring adjuster to the left (clockwise when viewed from above). When performing spring adjustment on the DFR 026, it will be necessary to have a valve shaft (Key V) inserted into CHANGING ACTUATOR STYLE the actuator and to approximately pre-adjust the up travel stop to its desired position.
  • Page 9 Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual CHANGING ACTUATOR STYLE (Continued) Swap the position of the travel scale/hub assembly (Keys 5, 6, 7, 8, & 9) and mounting yoke (Key 3) as shown in Figure 9. Install the travel scale/hub assembly on the opposite side of the actuator using the machine screws (Key 10).

  • Page 10: Mounting Orientations - Figure

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual Left Hand Mount Right Hand Mount STYLE B STYLE C STYLE A STYLE D POSITION 1 POSITION 1 POSITION 1 POSITION 1 Flow Flow RIGHT-HAND MOUNTING LEFT-HAND MOUNTING Figure 10...

  • Page 11: Actuator Disassembly

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual ACTUATOR DISASSEMBLY Before You Begin: • Read the General and Scope section of this manual (Page 2). • Read Safety Caution (Page 2). • Use safe work practices and lock out procedures.

  • Page 12: Diaphragm Plate/Rod Removal/Disassembly

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual Using a 5/16” socket bit, remove the socket head cap screw (Key 18) from the diaphragm rod (Key 16) and separate the diaphragm plate (Key 17) from the diaphragm rod.

  • Page 13: Spring / Adjuster / Seat Disassembly

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual Figure 14 Diaphragm/Rod Plate Disassembly ACTUATOR DISASSEMBLY (Continued) SPRING / ADJUSTER / SEAT DISASSEMBLY Figure 15 Spring / Adjuster / Seat Removal Remove the spring (Key 14) from the actuator housing (Key 1).

  • Page 14: Bushing Inspection / Removal

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual ACTUATOR ASSEMBLY Before You Begin: • The Assembly section of this manual assumes that the actuator has been completely disassembled prior to assembly. • Read the General and Scope section of this manual (Page 2).

  • Page 15: Spring / Adjuster / Seat Assembly

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual Figure 18 Hub Installation ACTUATOR ASSEMBLY (Continued) MOUNTING YOKE / HUB ASSEMBLY (Continued) Slide the travel scale (Key 8) onto the hub (Key 5) and secure it in place using the retaining ring (Key 9) and split-ring pliers.

  • Page 16: Lever Assembly & Installation

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual Figure 21 Lever Assembly / Installation Figure 20 Diaphragm Plate/Rod Assembly ACTUATOR ASSEMBLY (Continued) LEVER ASSEMBLY AND INSTALLATION If the set screws (Key 20) and jam nuts (Key 21) were removed from the lever (Key 19), re-install them as shown in Figure 21.

  • Page 17: Diaphragm Casing Assembly

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual ACTUATOR ASSEMBLY (Continued) DIAPHRAGM CASING ASSEMBLY Place the diaphragm (Key 23) over the diaphragm plate (Key 17), align the holes in the diaphragm with the holes in the actuator housing (Key 1).

  • Page 18: Principles Of Handwheel Operation

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual PRINCIPLES OF OPERATION AND ADJUSTMENT – HANDWHEEL TOP-MOUNTED HANDWHEEL DFR Top-Mounted Handwheel assemblies are attached to a modifi ed upper diaphragm casing (Key 24A) using cap screws (Key 109). To lock the handwheel in position, tighten the lock nut (Key 104) into the body (Key 105) of the handwheel.

  • Page 19: Dyna-Flo Control Valve Services Ltd

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual Special Tools Required: • Flat-head screwdriver or fl at-bladed tool. Lubricants Required: • Dow Corning Molykote 111 or equivalent (Key B) ® • Lubriplate No. 105 Grease or equivalent (Key C) ®...

  • Page 20: Actuator Cross Section - Figure

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual Figure 26 Actuator Cross Section P-DFR1M0918A Dyna-Flo Control Valve Services Ltd. Phone: 780 4000 Toll Free: 1 2356 Fax: 780 4035 Website: www.dynafl o.com • • • • • •...

  • Page 21: Dfr Torque Specifi Cations - Table

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual Table 3 Torque Specifi cations for Valve Mounting Bolts (Key 30) Mounting Bolts Valve Shaft Diameter lbf-ft • 1/2 Inch & 5/8 Inch x 1/2 Inch Table 4 DFR Torque Specifi cations...

  • Page 22: Parts

    Model DFR 026 Rotary Actuator Operation, Parts, and Instruction Manual Parts Description Part Number Elbow Vent, Plastic Y602-12D Description Part Number Mounting Bolt, Actuator / Valve, Zinc Plated Steel Housing Assembly, Cast Iron Mounting bolts are included with the valve assembly.

  • Page 23: Dyna-Flo Control Valve Services Ltd

    16A4659X01D Parts Ordering Whenever corresponding with Dyna-Flo about a DFR actuator, refer to the nameplate (Key 33) for the serial number of the unit. Please order by the complete part number (as given in the following parts list) of each part required.

  • Page 24: Model Builder

    Our Commitment to Quality Dyna-Flo is committed to continuous improvement. While all efforts have been made to ensure the accuracy of the content in this document, modifi cations or improvements to the information, specifi cations, and designs may occur at any time without notice.

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