Refining Community Logo

Switch Valve & Isolation Valve Workgroup

Home Forums Conferences 2012 Canada Switch Valve & Isolation Valve Workgroup

This topic contains 0 replies, has 1 voice, and was last updated by  4 drums coker 6 years, 8 months ago.

  • Author
    Posts
  • #1789

    4 drums coker
    Participant

    Switch Valve & Isolation Valve Workgroup
    Wednesday, 10/24/2012
    facilitators: Charles Marcantel, Furmanite & Steve Krushelniski, Measurement & Contols Ltd. 
     
    TECHNOLOGIES & ADVANCEMENTS:
                   Actuation for Snyder Switch Valves
                                    Ball Valves enter switch valve market
                                    Lift Plug valves enter market as switch valves
     
    CORROSION:
                                    Has not been an issue in the coker.
    MOST COMMON PROBLEM; COKING-UP
                                    In ball valve and lift plug valve typically is a purge problem
                                    In Snyder Switch Valve, typically occurs when manually operated and proper procedures are not followed
     
    STEAM PURGE:
                                    Needs to be as hot and dry as possible
                                    Should be regulated with a control valve in order to “read the process” in order to feed the proper pressure
                                    May try a dedicated “drop down” from the 600# plant steam system to insure no pressure drops caused by process demand.
     
    OTHER PURGE CONSIDERATIONS:
                                    Could use CGO
     
    BEST PRACTICES:
                                    Operate valves “slowly” to allow purge to clean out body cavities
                                    Wilson Snyder valves manually operated must use all 8 “Jack Bolts”
     

You must be logged in to reply to this topic.

Refining Community