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					        Process ESD systems




Valve Automation
   ESD Systems


         “In an emergency, the ability to rapidly shut
         off fluid and/or gas flow can mean the
         difference between a manageable situation
         and a potential disaster”




   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 2
   ESD Systems
        NPS 24 Failure
        USA
        July 2003
        Operating pressure: 1040psi


        Pipe Blow out , No fire.



         A well designed ESD
         system utilized to section
         off the pipeline, coupled
         with the absence of fire,
         made this one a non event!




   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 3
   ESD control solutions
        20 years ago, a liquid spill or gas
         released was not a major event.
           – Historically, sectioning valves on tank
             farms, liquids lines , aggressive
             pressurized gases etc.. have been
             electrically actuated due to their remote
             location.
           – With today's environmental standards
             and required practices, the need to have
             ESD capabilities becomes prevalent and
             changes the operational function of
             sectioning valves.
           – The lack of spring return capabilities
             from the different electric actuators
             designs on the market and its
             dependence on the supply source to
             operate and react to any given situation
             know makes the users vulnerable to
             dangerous situations and potential
             environmental catastrophes.


   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 4
   ESD Systems

       How can we define an ESD valve/damper
        system?
          – A packaged solution or sets of controls configured to
            make a rotary or linear actuator go to a desired
            position upon detection of a set or sets of event(s),
            autonomously or by dedicated signal.
          – Emergency Shutdown (ESD) Valves and other fail-
            safe valves and dampers assemblies, typically
            incorporate a spring-to-fail actuator to stroke the valve
            or damper in the event of an upset process condition.

   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 5
               ESD Systems
Supply




                        Open
                        Side




    Valve Automation
 [File Name or Event]
 Emerson Confidential
 27-Jun-01, Slide 6
   ESD Systems
       An actuator using either stored energy or reserved energy and
        configured to answer to the designation of Emergency Shut Down
        (ESD) valve will provide protection on;
         – Pipelines
         – Storage facilities in refineries
         – LPG
         – Chemical
         – Tank farm
         – Loading and unloading facilities
         – Process
         – Wellheads
         – Liquids lines


   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 7
   ESD Systems
       Such protection is indispensable on process medias such as;

         – Ammonia
         –    Butane
         –    Propane
         –    Pentane
         –    Polypropylene,
         –    LNG
         –    NGL
         –    Mild acids
         –    Diesel fuels
         –    Thermal oils
         –    Liquefied gases


   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 8
   ESD systems
       Typically used on on/off isolation or sectioning
        valves, controls can be devised to incorporate
        ESD logic into control valves packages.
       Most often installed on ball, plug, butterfly, gate
        and globe valves, solutions can be self contained
        or integrated into a ESD system.
       From local to remote triggering, we must first
        determined the parameter and means by which
        we will “trip” the actuator to fail close or open on
        each applications.

   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 9
   ESD triggers
       Pressure sensing High & Low




    All Pressurematic pilot valves
    provide high and low pressure
    sensing on gas or liquids and can
    be fitted with either an automatic
    or manual reset..




   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 10
   ESD triggers
       Pressure sensing High & Low      low (falling) pressure


       Pressure sensing High or Low




                                                         high (rising) pressure


    SP Pressure Pilot valves provide
    either high or low pressure
    sensing on gas or liquid and can
    be fitted with either an automatic
    or manual reset facility.

                                                      high (rising) pressure
                                                      c/w manual reset valve




   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 11
   ESD triggers
       Pressure sensing High & Low
       Pressure sensing High or Low
       Fusible link




    Fusible links are set to melt and
    activate an ESD system in the
    event of fire.




   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 12
   ESD triggers
       Pressure sensing High & Low
       Pressure sensing High or Low
       Fusible link
       ROD (Rate of Drop)




      The Bettis Deltamatic linebreak
      detection system is designed to
      automatically monitor pressure
      and send instrument pressure
      signal if a predetermined rate of
      pressure drop is exceeded



   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 13
   ESD triggers
       Pressure sensing High & Low
       Pressure sensing High or Low
       Fusible link
       ROD (Rate of Drop)
       Linebreak system


      In anticipation of customer requirements to
      provide a system that will not only provide
      linebreak protection but also monitoring and
      analyses of pressure characteristics, Bettis has
      designed our next generation electronic
      linebreak system. The LineGuard system
      incorporates everything Bettis has learned about
      pipeline protection which is…well, a lot. Again,
      Bettis leads the World in valve actuation
      systems.



   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 14
   ESD triggers
  • Initiates valve shutdown on set high and low
    pipeline pressures. Initiates valve shutdown on a
    set rate of pipeline pressure fall.

  • Monitors (every 5 seconds) and records pipeline
    pressure to provide a detailed insight into the
    pipelines operating characteristics prior and post to
    valve shutdown.

  • Allows optimizing of setpoints for                      LineGuard 2100



    effective linebreak control.

  • Remote     communication    and
    control using industry standard
    MODBUS protocol.



   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 15
   ESD triggers
       Pressure sensing High & Low
       Pressure sensing High or Low
       Fusible link
       ROD (Rate of Drop)
       Linebreak system
          – Hard wired
          – Cellular communication
          – Radio Communication
          – Scada systems




   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 16
  ESD triggers




   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 17
   ESD triggers
       Pressure sensing High & Low
       Pressure sensing High or Low
       Fusible link
       ROD (Rate of Drop)
       Linebreak system
          – Hard wired
          – Cellular communication
          – Radio Communication
                                       Where an independent monitoring
          – Scada systems              systems from the main process
       ESD systems                    system will send the selected
                                       valves into ESD mode.




   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 18
   ESD control solutions
       With controls modification we
        can turn your control valve
        package into and ESD solution
        using both spring return
        actuators and double acting
        where we can use the line pack
        as the source of energy when
        available




   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 19
  ESD control solutions


                           ESD   120/60AC




                                 4-20 ma in
        Supply         R
        80psi min
        120 psi
        max




                       F
                               P

                                              4-20 ma out

      ESD signal on Linear control valve
      ESD process & ESD hand pump



   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 20
   ESD control solutions




   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 21
   ESD On/Off solutions
         The Valve Automation
         division offers a complete
         array of solution with
         products such as;




                          Scotch Yoke & Linear Designs
   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 22
  ESD On/Off solutions




                       SO
                                   Low/high pressure ESD shut off
                                   Spring Return Actuator




                            OPEN




   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 23
   ESD On/Off solutions
         The Valve Automation
         division offers a complete
         array of solution with
         products such as;




                          Hydraulic Vane Designs
   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 24
  ESD On/Off solutions
                                                Low/high pressure
                                                ESD shut off
                                                Double Acting
                                                Actuator



                       SC                  SO




                            CLOSE   OPEN




   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 25
   ESD On/Off solutions
         The Valve Automation
         division offers a complete
         array of solution with
         products such as;




                          Helical Spline subsea Designs
   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 26
   ESD On/Off solutions
         The Valve Automation
         division offers a complete
         array of solution with
         products such as;




                          Rack & Pinion Designs
   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 27
   ESD On/Off solutions
         The Valve Automation
         division offers a complete
         array of solution with
         products such as;




                          Rack & Pinion Designs
   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 28
   ESD On/Off solutions
         The Valve Automation
         division offers a complete
         array of solution with
         products such as;




                          Rack & Pinion intelligent solutions
   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 29
   ESD Self contained solution
  The standard SCH control system always requires at least one
  additional control component to initiate valve shutdown. This type of
  component is used to initiate the depressurization of the system
  allowing the actuator’s spring to move the mainline valve to its failed
  position. Most common of these shutdown devices are pressure pilot
  valves, solenoid valves and manual ball valves.

  The    picture   shows      a
  Pressurematic Pilot fitted
  with a manual reset valve (P-
  MR type) being used as the
  shutdown device.



  PressureMatic Pilot Valve
  c/w Manual Rest


   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 30
   ESD Self contained solution




   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 31
   ESD Gas over Oil solution

           When line pressure
           exceeds 400 psi, we can
           look at using the line
           pressure as the source
           of energy to drive the
           actuator




   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 32
   ESD Gas over Oil solution
                                           10                                   12                13

          SUPPLY

                                                                                                                  MA N
                                                                                                              O




                                                                                                      A U T



                                                                                                                         U A L
                                                                                     16




                         25           15
                                                            4                                 4
                                                            4                                 4


                                           CLOSE                                                              OPEN

                                                            3                                 3
                                                            3                                 3                      1-          OPERATOR
                                                                                                                     2-          LINE VALVE
                                                                                                                     3-          GAS / HYDRAULIC TANK
                                                                                                                     4-          3-WAY VALVE (MANUAL)
                                                                                                                     6-          SELECTOR VALVE
                                                                                                                     7-          SPEED CONTROL VALVE
                                                                7                         7                          8-          CHECK VALVE
                                                                                                                     9-          HANDPUMP
                                 14                                                                                  10-         FILTER
                                                                            1

                                                   6
                                                                            1                                        14-         PRESSURE PILOT / MAN RESET
                                                   6                                              6
                                                                                                                     15-         END OF STROKE VALVE
                                                   8
                                                                                                  8
                                                                                                  8                  16-         MANUAL SELECTOR VALVE
                                                   8
                                                                                                                     25-         REVERSING RELAY
                                                                                                                     35-         SHUTTLE VALVE
                                                                                                                     37-         HANDPUMP SAFETY VALVE
                                                                    9
                                                       37




        OPERATION:
        - SHOWN WITH LINE VALVE OPEN
        - TWO-WAY MANUAL
        - PRESSURE PILOT - MANUAL RESET                     PIPELINE
                                                                        2
                                                                        2




   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 33
   Valve Automation division
       The most complete offering
        of actuation concepts and
        solutions.
       Torques up to 6,000,000
        lb/in
       From 3,000 meters below
        sea to the top of your
        stack, we offer proven and
        reliable products for all you
        automation needs!




   Valve Automation
[File Name or Event]
Emerson Confidential
27-Jun-01, Slide 34

				
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