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SIL Safety Manual

DOC.SILM.EEP.EN Rev. 0

April 2017

EL-O-Matic E and P Series Pneumatic Actuator

SIL Safety Manual

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EL Matic

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Содержание El-O-Matic E Series

Страница 1: ...SIL Safety Manual DOC SILM EEP EN Rev 0 April 2017 EL O Matic E and P Series Pneumatic Actuator SIL Safety Manual schaal 1 1 EL MaticTM EL MaticTM ...

Страница 2: ......

Страница 3: ... 3 Section 4 Expected Lifetime 5 Section 5 Failure Modes and Estimated Failure Rates 6 Section 6 Installation and Site Acceptance Procedure 7 Section 7 Periodic Test and Maintenance Requirements 8 7 1 General 8 7 2 Full Stroke Test 8 7 3 Partial Stroke Test 9 7 4 Proof Test and Periodic Maintenance 9 Section 8 Hardware Fault Tolerance 10 Section 9 Classification 11 Section 10 Safe Failure Fraction...

Страница 4: ...ator to open the blow down valve depressurizing if under pressure the Closing side of the pneumatic actuator and pressurizing the Opening side of the pneumatic actuator Single Acting Scenario a When an unsafe condition is detected in a plant by a process sensor the controller via actuator control system drives the Actuator to rotate with sufficient torque to move a valve to its fail safe state whe...

Страница 5: ...s of the EL O Matic E and P Series pneumatic actuators are designed in such a way that there are no moving parts on the outside with the exception of the position indicator This makes them safe easy to install and virtually maintenance free For further details about actuator configurations please refer to the EL O Matic E and P Series product data sheets Quick Reference Guide and Installation Oper...

Страница 6: ...ween 4 8 Nm 42 lbf in and 6 619 Nm 58 583 lbf in The EL O Matic E and P Series spring return models require pressure in only one direction of travel and are suitable for air fail close and air fail to open applications without modification These models are available with a spring end torque between 4 6 Nm 41 lbf in and 1958 Nm 17 330 lbf in Safety Function For spring return models the safety funct...

Страница 7: ...zed B port pressurized Pistons Shaft A port pressurized B port pressurized B port pressurized A port pressurized B port pressurized A port pressurized 1 503 Rev A DOUBLE ACTING ACTUATOR ASSEMBLY MODES E P B SHAFTTURNED 90 from standard STANDARD D C MOUNTING ACROSS LINE MOUNTING IN LINE MOUNTING IN LINE MOUNTING ACROSS LINE SHAFTTURNED 90 PISTONSTURNED 180 from standard PISTONSTURNED 180 from stand...

Страница 8: ...ators can be in good conditions also after more than 10 years with planned minimum maintenance Normal working life is the number of cycles as defined in Table 1 of EN 15714 3 EL O Matic E and P Series carry a warranty period of 18 months after delivery if properly stored in conditions that we declare or 12 months after installation on site 5 April 2017 SIL Safety Manual DOC SILM EEP EN Rev 0 Secti...

Страница 9: ... 3 Failure Rates EL O Matic E Serie Pneumatic Actuator with partial valve stroke testing Failure Category Failure Rate in FIT Spring Return Double Acting Fail Safe 76 0 Fail Dangerous Detected 225 201 Fail Dangerous Undetected 117 161 No Effect 1550 1285 Table 4 Failure Rates EL O Matic P Serie Pneumatic Actuator with partial valve stroke testing Failure Category Failure Rate in FIT Spring Return ...

Страница 10: ...es are discussed in the EL O Matic E and P Series actuators Installation Operation and Maintenance manual The Installation Operation and Maintenance manual defines exercising of the actuator after installation and defines testing after maintenance 7 April 2017 SIL Safety Manual DOC SILM EEP EN Rev 0 Section 6 Installation and Site Acceptance Procedure ...

Страница 11: ...r actuator operation 7 2 Full Stroke Test The Full Stroke Test On line must be performed to satisfy the PFDAVG average probability of failure on demand value The full test frequencies will be defined by the final integrator in relation to the defined SIL level to achieve Procedure Operate the Actuator Valve assembly for No 2 open close complete cycles with complete closing of the valve Verify the ...

Страница 12: ...Ensure there are no leaks on the actuator parts under pressure Check pneumatic connections for leaks Tighten tube fittings as required Check if manual override where foreseen is regular Check if pneumatic filter cartridge where foreseen is sound and filter bowl where foreseen has been cleaned properly Check the setting of the relief valves where foreseen Verify that the power fluid supply pressure...

Страница 13: ...f IEC 61511 1 have to be observed but as long as has been performed an assessment report fully in compliance with IEC 61508 part 1 to7 alternative fault tolerance requirements have to be considered applicable according to Table 2 of IEC 61508 2 as per par 11 4 5 of IEC 61511 1 SIL Safety Manual DOC SILM EEP EN Rev 0 April 2017 10 Section 8 Hardware Fault Tolerance ...

Страница 14: ...Classification Section 9 Classification The equipment is classified Type A according to IEC 61508 2 11 April 2017 SIL Safety Manual DOC SILM EEP EN Rev 0 Section 9 Classification ...

Страница 15: ...g to definition 3 8 7 of IEC 61508 4 SFF 91 with Partial Stroke Test SFF 99 with Full Stroke Test The SFF shall be evaluated for the entire final element sub system The diagnostic test shall be performed considerably more often than the demand of the safety function SIL Safety Manual DOC SILM EEP EN Rev 0 April 2017 12 Section 10 Safe Failure Fraction ...

Страница 16: ...eries actuators are provided in the respective Installation Operation and Maintenance manual Please refer to the Installation Operation and Maintenance manual for any tools required for repair and replacement and required competency of technicians Maintenance and subsequent test procedures are also covered in the Installation Operation and Maintenance manual Any failures identified by the end user...

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Страница 18: ... F 966 3 340 8790 24 Angus Crescent Longmeadow Business Estate East P O Box 6908 Greenstone 1616 Modderfontein Extension 5 South Africa T 27 11 451 3700 F 27 11 451 3800 EUROPE Berenyi u 72 100 Videoton Industry Park Building 230 Székesfehérvár 8000 Hungary T 36 22 53 0950 F 36 22 54 3700 www emerson com el o matic 2017 Emerson All rights reserved The Emerson logo is a trademark and service mark o...

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