Emerson El-O-Matic E Series Manuale di istruzioni
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
EL-O-Matic E and P Series
DOC.SILM.EEP.EN Rev. 0
Table of Contents
April 2017
I
Table of Contents
Table of Contents
Section 1: Functional Specification ���������������������������������������1
Section 2: Configuration of the Product ��������������������������������2
Section 3: Service Condition Limitations �������������������������������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 �������������������������������������������12
Section 11: Mean Repair Time ����������������������������������������������13
Functional Specification
Section 1: Functional Specication
The safety function for EL-O-Matic E and P Series pneumatic actuator is dened as follows:
Double-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 close the
shut-down valve, depressurizing (if under pressure) the Opening side of
the actuator and pressurizing the Closing side of the actuator.
b. When an unsafe condition is detected in a plant by a process sensor, the
controller, via actuator control system drives the Actuator 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
sufcient torque to move a valve to its fail-safe state when hold-position
air pressure is released.
The EL-O-Matic E and P Series brand Actuator Selection Procedure provides functional
denition with specics on input variables and performance.
In any case, the choice of the safety function to be implemented is responsibility of the
system integrator.
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SIL Safety Manual
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Section 1: Functional Specification
Configuration of the Product
Section 2: Conguration of the Product
The EL-O-Matic E and P Series are pneumatically operated actuators designed to operate
Ball / Plug / Buttery valves, automation of louvers and dampers & automation of any
quarter-turn mechanism. Both the double-acting and single-acting (spring-return) versions
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 congurations, please refer to the EL-O-Matic E and
P Series product data sheets, Quick Reference Guide and Installation, Operation and
Maintenance manual.
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Section 2: Configuration of the Product
Service Condition Limitations (Limitation of Use)
Section 3: Service Condition Limitations
(Limitation of Use)
The operating capabilities are listed below:
• Maximum Operating Pressure:
— Pneumatic Service
— Up to 8 Barg (116 PSIg)
• Ambient Temperature:
Temperature extremes require different solutions to maintain actuator operational
integrity and reliability. For each EL-O-Matic E and P Series actuator is available in
three different temperature executions.
— -20°C to +80°C (-4°F to +176°F) Standard temperature
— -20°C to +120°C (-4°F to +248°F) High Temperature
— -40°C to +80°C (-40°F to +176°F) Low Temperature
• Torque Output Range:
— Double-Acting EL-O-Matic E and P Series actuators, requiring pressure to
rotate in either direction, are available with a torque range between 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 modication. 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 function is self-evident performed by the
springs. The safety function of double-acting models shall be performed by the
A-port. The failure rates in Section 5 are valid only for this conguration.
NOTE:
This product is only intended for use in large-scale xed installations excluded from the
scope of Directive 2011/65/EU on the restriction of the use of certain hazardous substances
in electrical and electronic equipment (RoHS 2).
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Section 3: Service Condition Limitations (Limitation of Use)
Service Condition Limitations (Limitation of Use)
Figure 1 Use the A-Port for Safety Related Systems on Double-Acting Actuators
Data sheet
Sheet No.:
Date: November 2009
www.El-O-matic.com
Copyright © Emerson Process Management. The information in this document is subject to change without notice.
Updated data sheets can be obtained from our website www.El-O-Matic.com or from your nearest Valve Automation Center USA : +1 813 319 0266 Europe : +31 74 256 10 10 Asia-Pacific: +65 6501 4600
TM
AB
AB
AB
AB
A-port pressurized
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
SHAFT TURNED 90°
(from standard)
STANDARD
DC
MOUNTING ACROSS LINE
MOUNTING IN LINE
MOUNTING IN LINE
MOUNTING ACROSS LINE
SHAFT TURNED 90°
PISTONS TURNED 180°
(from standard)
PISTONS TURNED 180°
(from standard)
(OPTIONAL L1/LF) LIMIT STOPS WILL ADJUST THE VALVE AT OPEN POSITION
(OPTIONAL L1/LF) LIMIT STOPS WILL ADJUST THE VALVE AT CLOSED POSITION
All views are from above
Pistons are shown in inner position
A
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4
Section 3: Service Condition Limitations (Limitation of Use)
Expected Lifetime
Section 4: Expected Lifetime
Actuator lifetime (for which failure rates indicated in Par. 5 are ensured) strongly depends
on operating conditions.
For normal service conditions, EL-O-Matic E and P Series actuators can be in good
conditions also after more than 10 years with planned minimum maintenance. Normal
working life is the number of cycles as dened 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.
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Section 4: Expected Lifetime
Failure Modes and Estimated Failure Rates
Section 5: Failure Modes and Estimated
Failure Rates
Table 1� Failure Rates – EL-O-Matic E-Serie Pneumatic Actuator
Failure Category Failure Rate (in FIT)
Spring-Return Double-Acting
Fail Safe 76 0
Fail Dangerous Undetected 342 362
No Effect 1550 1285
Table 2� Failure Rates – EL-O-Matic P-Serie Pneumatic Actuator
Failure Category Failure Rate (in FIT)
Spring-Return Double-Acting
Fail Safe 80 0
Fail Dangerous Undetected 559 465
No Effect 1993 1265
The failure rates for the EL-O-Matic E and P Series pneumatic actuator when performing
partial valve stroke testing are listed in the table below:
Table 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 Double-Acting
Fail Safe 80 0
Fail Dangerous Detected 370 256
Fail Dangerous Undetected 189 209
No Effect 1993 1265
NOTICE
No internal diagnostics is included in the device. These values are valid when taken in
account the maintenance interval and procedure described in Section 7, and for the
expected lifetime dened in Section 4.
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6
Section 5: Failure Modes and Estimated Failure Rates
Installation and Site Acceptance Procedure
Section 6: Installation and Site
Acceptance Procedure
Any necessary installation and site acceptance procedures are discussed in the EL-O-Matic
E and P Series actuators Installation, Operation and Maintenance manual. The Installation,
Operation and Maintenance manual denes exercising of the actuator after installation and
denes testing after maintenance.
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SIL Safety Manual
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Section 6: Installation and Site Acceptance Procedure
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