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Contents

 

 

This manual contains important safety information. 
Please ensure it is thoroughly read and understood 
before installing, operating or maintaining the 
equipment.

Due to the wide variety of controls and switches 
available for this actuator, actual wiring of this 
device should follow the print supplied with the unit.

Section Page

1  Introduction  

4

 

1.1 

Purpose of this manual 

4

  1.2 Symbols 

4

  1.3 Preservation 

4

 

1.4 

EU compliance / regulations 

4

 

1.5 

Customer service 

4

2  Health & safety 

5

 

2.1 

Appropriate usage 

5

 

2.2 

Authorised personnel 

5

 

2.3   General safety notes 

6

 

2.4 

Residual risks  

7

3  Actuator description 

10

 

3.1 

General description 

10

4  Checks to be carried out upon delivery 

12

 

4.1 

Damages during transport 

12

 

4.2 

CE marking and name plates 

12

5  Handling & lifting 

13

  5.1 Handling 

13

 

5.2 

Actuator lifting 

13

6 Storage 

 

14

 

6.1 

General instructions 

14

Section Page

 

6.2 

Long-term storage 

14

7  Assembling actuator onto the valve 

15

  7.1 General 

15

 

7.2 

Mechanical considerations 

16

8  Actuator removal from the valve 

16

9  Operation and use 

17

 

9.1 

Actuator operating description 

17

 

9.2 

Setting the actuator angular stroke 

17

 

 

9.2.1  Double-acting actuator  

17

 

 

9.2.2  Fail to open actuator 

18

 

 

9.2.3  Fail to close actuator  

18

10 Start-up 

 

19

 

10.1  Power supply 

19

 

10.2  Pneumatic connections 

19

 

10.3  Electrical connections 

19

  10.4 Start-up 

20

 

10.5  Speed adjustment 

20

11 Maintenance 

20

 

11.1  Periodic inspections 

20

  

11.1.2 

Pneumatic actuator seals replacement 21

12 Troubleshooting 

26

13  Dismantling and disposal 

27

Summary of Contents for K-TORK Series

Page 1: ...Keeping the World Flowing K TORK Range Installation Maintenance Instructions High performance quarter turn rotary pneumatic actuators...

Page 2: ...be carried out upon delivery 12 4 1 Damages during transport 12 4 2 CE marking and name plates 12 5 Handling lifting 13 5 1 Handling 13 5 2 Actuator lifting 13 6 Storage 14 6 1 General instructions 1...

Page 3: ...personnel in the proper installation operation and maintenance of the product Install equipment as specified in Rotork Fluid Systems installation instructions and per applicable local and national cod...

Page 4: ...1 3 Preservation This manual is considered an integral part of the actuator and must be kept along with it until the actuator is decommissioned This manual and all the attached documentation are to be...

Page 5: ...rn valves such as ball valves butterfly valves or plug valves Improper use can cause dangerous situations for health and safety Rotork declines any responsibility for damage to people and or objects r...

Page 6: ...y Operation adjustment or maintenance of the actuator and controls may depending on the application release potentially explosive gases and or dangerous fluids Operators must wear appropriate personal...

Page 7: ...so make sure that transit areas are correctly built so that the staff can enter or exit the work area safely transit areas must be kept clean of equipment materials debris or anything that could obstr...

Page 8: ...ning or incorrect use wearing of protection devices Prevention measure The end user must make sure that personnel not authorised to lift and handle the actuator must be kept out of the working area Au...

Page 9: ...enance interventions on the actuator with the pneumatic circuit under pressure Prevention measure Switch off pneumatic supply before starting maintenance operations Residual risk Safety risk for opera...

Page 10: ...e Plate Seal Retainer Powder coated steel 9 Valve Seal Expanders Ensures consistent lip seal to case contact 10 Bolting Hardware 304 stainless steel 11 Integral NAMUR Manifold For direct mount solenoi...

Page 11: ...tmospheric air 15 Spring Spring may be removed from housing and flipped to reverse fail direction for flexibility reducing stock requirements Spring includes steel safety band patent pending around sp...

Page 12: ...chever is greater Normal operating temperature is approximately 20 C to 80 C The precise temperature range is specified within the project specific technical documentation Special applications out of...

Page 13: ...specific job Personnel operating the actuator or parts of it must consult all the documentation before performing any operations The lifting device and the sling must be suitable rated for the actuato...

Page 14: ...n the actuator in good working condition namely Replace the plastic plugs by metal plugs to guarantee a complete weatherproof protection of the fluid and electrical connections especially if the stora...

Page 15: ...otate the driven device Clean the coupling flange of the valve and remove anything that might prevent a perfect adherence to the actuator interface Grease has to be completely removed Apply anti seize...

Page 16: ...e of removing the actuator from the valve The actuator is to be removed exclusively by competent and qualified staff wearing using appropriate personal protection devices Ensure sufficient free space...

Page 17: ...stop bolt 1 clockwise Verify the newly obtained angular position with one closing stroke Repeat this operation until the desired angle is obtained Hold the stop bolt 1 with a wrench and tighten the l...

Page 18: ...properly placed 9 2 2 2 Setting of the close valve position see Figure 7 Adjust the stop bolt actuator as follows Pressurise the actuator until the actuator reaches the fully closed position Check wh...

Page 19: ...e potential between the valve and the actuator and provide appropriate grounding It is the responsibility of the final user to indicate and maintain the earthed connections on the actuator Access to l...

Page 20: ...cost of ownership Rotork can provide actuator maintenance contracts tailored to meet each individual customer s requirement Perform checks specified in the following periodic maintenance schedule in...

Page 21: ...ssembled in a clean area free of dust c Place the actuator in a stable position e g on a workbench d If the actuator is provided with a control panel remove the panel and any other component fitted to...

Page 22: ...actuator The power spring and the spring shaft should remain in the spring cover as it is removed The spring shaft engages with the actuator shaft the spring shaft should slide easily off the off the...

Page 23: ...t vane lip seals are not trapped at case joint flange face when seals are fitted g Tighten case screws to the following torques Table 4 Recommended Tightening Torque Model No Torque Imperial lbf in Me...

Page 24: ...2 Shaft Bushing Bronze Bushing PTFE Lined Steel Backed 7 2 Shaft Seal HNBR 8 2 Outer Case LM20 or LM25 Aluminium Alloy A413 or A356A 9 2 Stop Bolt 304 Stainless Steel 10 2 Stop Bolt O Ring Viton Rubbe...

Page 25: ...or shaft for springs wound for 80 psi service h Loosen the keeper plate bolts With proper air pressure the bolts will not bind If binding adjust air until bolts are loose enough to be removed i Remove...

Page 26: ...s see section 9 2 Debris left in the actuator during maintenance Disassemble the actuator to remove debris Reassemble the actuator Fault of pipeline valve Consult the valve manufacture s documentation...

Page 27: ...e spring cartridge have to be returned to the manufacturer s plant upon agreement with Rotork Collect the grease and the oil during dismounting to avoid disposal of pollutants in the environment the d...

Page 28: ...y be subject to change For the very latest version release visit our website at www rotork com The name Rotork is a registered trademark Rotork recognises all registered trademarks Published and produ...

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