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6

2.3 

General safety notes

Safety warnings contained herein and the instructions 
described in the other sections of this manual must be 
observed to reduce health risks to the minimum and avoid 
dangerous situations during actuator installation, operation, 
and maintenance. 

•  The general safety rules and signs applicable in dangerous 

or nearby areas are to be observed.

•  Under no circumstances should any modification or 

alteration be carried out on the unit as this could 
invalidate the certification. Safety systems must not be 
tampered with.

•  The actuator must not be operated if any kind of anomaly 

is detected.

•  Take care to not drop the actuator as housing/vane can 

be damaged.

 The user must warrant that all operators working 

in the vicinity of the actuator, are familiar with the 
emergency procedures to be followed in case of 
accidents.

 Before performing maintenance, the actuator 

should be isolated from remote control signals and 
pneumatic power supply. The system should then be 
relieved of any internal pressure prior to disassembly.

 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 protective device.

 No inspection or repair should be undertaken 

unless it conforms with the applicable hazardous 
area certification requirements. It is strictly forbidden 
to remove the protection covers of the electrical 
components in potentially explosive environment, 
without first removing all electrical power.

•  It is not allowed to leave tools or materials on the 

actuator because they could damage the actuator or 
cause accidents to the operator.

•  Prior to cleaning the external surfaces of the actuator, 

power supply must be shut off.

 Prevent electrostatic charges in potentially 

explosive areas – do not polish/rub non metal 
surfaces with a dry cloth; the operator’s clothes are 
not electrostatically charged. The tools and cleaning 
procedures must not produce sparks or create adverse 
conditions in the environment during maintenance 
operations, so as to prevent potential explosion 
hazards.

 Presence of moving parts (i.e. actuator output 

shafts, valve adapter); pay attention when performing 
operations with the actuator.

Health & Safety

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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