I-Tork PDS Series Installation & Operation Manual
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I-Tork PDS Series Installation & Operation Manual

Pneumatic actuator
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I-TORK PDS PNEUMATIC ACTUATOR
Installation & Operation Manual
(I-TORK PDS Series Pneumatic Actuator)
PDS-M0108/1010
74-6, Chun Ui-Dong, Won Mi-Gu, Bucheon, Kyoung Ki-Do, Korea
Tel : 82-2-855-1365, 66 Fax : 82-2-855-1367 E-mail :
roy75@i-tork.com
Website:
www.i-tork.com
I-Tork PDS Pneumatic Actuator
Installation and operating manual (PDS-M0108/1010)
1 1 1 1

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Summary of Contents for I-Tork PDS Series

  • Page 1 I-TORK PDS PNEUMATIC ACTUATOR Installation & Operation Manual (I-TORK PDS Series Pneumatic Actuator) PDS-M0108/1010 74-6, Chun Ui-Dong, Won Mi-Gu, Bucheon, Kyoung Ki-Do, Korea Tel : 82-2-855-1365, 66 Fax : 82-2-855-1367 E-mail : roy75@i-tork.com Website: www.i-tork.com I-Tork PDS Pneumatic Actuator Installation and operating manual (PDS-M0108/1010)

  • Page 2: Table Of Contents

    I-TORK PDS PNEUMATIC ACTUATOR Table of Contents 1. GENERAL 2. SCOTCH-YOKE PRINCIPLE & ADJUSTMENT 3. IMPORTANT SAFETY PROCEDURES 4. OPERATION 5. LUBRICATION REQUIREMENTS 6. APPLICATION 7. INSTALLATION & PIPING 8. DISMANTLE & ASSEMBLY 9. PDS50~200 PART LIST TROUBLE SHOOTING I-Tork PDS Pneumatic Actuator...

  • Page 3: General

    I-Tork PDS series actuators are designed for rotary quarter turn valves and there are PD (Double Acting) and PS (Single Acting-with Spring Pack). I-Tork PDS series actuators can be used with a 4~8Kg/㎠ range of air supply pressure. Standard air pressure is 5.5Kg/㎠.

  • Page 4: Scotch-Yoke Principle & Adjustment

    ‘Fail Open’ position, then the adjustment will take place in the closed position. The adjustment angle for both is ±3° by Adjusting Screws. The adjustment is done by loosening the Adjusting Screws, and I-Tork PDS have 2 Adjusting Screws for open and close positions.

  • Page 5: Important Safety Procedures

    I-TORK PDS PNEUMATIC ACTUATOR 3. Important Safety Procedures Caution: Always disconnect the Air and Electrical supplies before carrying out any form of maintenance on an Actuator. Caution: When removing any ball valve or plug valve assemblies from a pipe system, isolate the piping system on which the Actuator is installed and relieve any media pressure that may be trapped in the valve cavities before removing the Actuator for maintenance.

  • Page 6: Operation

    I-TORK PDS PNEUMATIC ACTUATOR 4. Operation Figure 1 : PD (Double Acting) Close Open When air is supplied to the left port, the actuator will move to the Close position. When air is supplied to the right port, the actuator will move to the Open Position.

  • Page 7: Lubrication Requirements

    I-TORK PDS PNEUMATIC ACTUATOR 5. Lubrication Requirements: I-Tork PDS generally do not require lubrication, however, oil mist lubrication is recommended for actuator which has performed more than 100,000 operation cycles. Recommended Lubrication Grease: Parts Actuator Version Grease Cylinder Bore, Shaft Standard &...

  • Page 8: Installation & Piping

    I-TORK PDS PNEUMATIC ACTUATOR 7. Installation and Piping 1) Selection of actuator Determine the appropriate torques and strokes taking into consideration the following parameters and questions. Valve Question Valve: type, size, function and operation characteristics Operating Conditions: Media, Temperature, Pressure, Flow rate, Frequency of operation and required stroking time.
  • Page 9 Bottom End of Shaft: Double Square for Easy Mounting (ISO5211) 3) Piping (Air Tubing) All I-Tork PDS actuators can be piped with solid or flexible tubing with the solenoid valve mounted remotely from the actuator or by mounting a NAMUR designed solenoid valve directly onto the NAMUR mounting pad on the side of the actuator.
  • Page 10 Power up the solenoid valve. The actuator should operate. 4) Storage I-Tork PDS actuator’s body is made of Hard-Anodized aluminum both inside and outside for protection against corrosion. Store in a dry area and care to be taken when stacking the actuators.

  • Page 11: Dismantle & Assembly

    I-TORK PDS PNEUMATIC ACTUATOR 8. Dismantle and Assembly (For Replacing O-ring and other parts.) PD series (Double Acting) Dismantling Caution: Vent all compressed air from the actuator and disconnect all electric power before dismantling. 1) Loosen the adjusting screws (23).
  • Page 12 9) For Assembly: Do the Reverse. Converting PD to PS Actuators: All I-Tork PD (Double Acting) actuators can be converted to PS (Single Acting) actuators by adding a spring pack as follows. Caution: Vent all compressed air from the actuator and disconnect all electrical power before dismantling.
  • Page 13 I-TORK PDS PNEUMATIC ACTUATOR Disassembling of Spring Pack: For safe disassembling of the spring packs, the following procedure must be carried out. 1. Disconnect all air and electrical supplies. 2. Springs must not be in the compress position (that is, the springs must be at fully extended position).

  • Page 14: Pds50~200 Part List

    I-TORK PDS PNEUMATIC ACTUATOR 9. PDS50~200 PART LIST Part List No Material Part List No Material Part List No Material 1. Cylinder Aluminum 12.Washer-Shaft Steel Steel Adjust screw 2. Cover Aluminum 13. Roller Pin Steel 24. NUT Stainless Steel 3. Piston Aluminum 14.

  • Page 15: Trouble Shooting

    I-TORK PDS PNEUMATIC ACTUATOR 10. TROUBLE SHOOTING Status Possible Reason Recommended action Check the incoming voltage Electric power line fails or power line Check voltage of solenoid Coil Actuator doesn’t If coil is OK, check operation Trouble in solenoid valve...

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Pds-m0108/1010

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