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7

Keeping the World Flowing

2.4 

Residual risks 

Residual risks imply potential hazards for the operator due to 
incorrect work practices that are impossible to eliminate or 
can be eliminated only in part. 

Work environment

The user must ensure that the working environment or 
any material in the vicinity of the actuator do not reduce 
the safety level required for the proper functioning of the 
actuator.

The user must ensure that the actuator is duly protected from 
the environment, including – among other factors – lightning, 
vibration sources and vehicle movements.

 Prior to installing the actuator in potentially 

explosive areas, verify that the safety requirements 
specified on the nameplate are compatible with 
the plant requirements. Install the actuator only in 
the potentially explosive area for which it has been 
designed.

The final user is to provide the staff operating the 

actuator or the adjacent equipment with the necessary 
procedures and training to avoid additional risks.

Residual risk: 

Actuator/valve installed in the plant in a way that prevents 
personnel from moving around easily and/or so that work 
and/or emergency exit ways are blocked or impassable.

Prevention measure:

 

The final user must place the actuator/ valve without 
jeopardising the safety of the staff. The final user must also 
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 obstruct the passage. 

Residual risk: 

Tripping up, slipping and consequent falls due to floor 
irregularities or oil spills, grease or products that make the 
floor slippery in the area of the actuator including transit 
ways.

Prevention measure:

 

The user must make sure that the work area around the 
actuator is safe, clean and free of any kind of obstacle. 
Possible losses of fluid must be eliminated and possible 
deposits must be removed and cleaned. Operators should 
wear safety shoes.

Residual risk: 

Protruding parts and sharp corners on the actuator can be a 
safety and/or health hazard for the staff, especially in case of 
falls.

Prevention measure:

The user must confine the work area around the actuator 
and access must be permitted only to qualified staff wearing/
using appropriate PPDs.

Residual risk: 

Human error due to a failure to comply with procedures and/
or safety instructions. 

Prevention measure:

 

Use of/wearing suitable PPDs to reduce the effect of such 
risks to the minimum.

Residual risk: 

The user fails to verify the compatibility of the ATEX 
protection directives specific for the actuator with that of the 
installation area. 

Prevention measure:

 

It is the user’s responsibility to verify all the documentation 
concerning the actuator and the name plate displaying the 
ATEX protection. 

Health & Safety

Содержание K-TORK Series

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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