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© Swagelok Company, 2006

Miniature Modular Stream Selection Valves Switching Valve CPAC NeSSI Workshop May 11, 2006. © Swagelok Company, 2006. Stream Selection Background. Select from an array of similar process samples for a single analyzer (CEM – CO, CO 2 , SO 2 , NO x ,…) Sample must be timely and pure

Sophia
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© Swagelok Company, 2006

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  1. Miniature Modular Stream Selection Valves Switching Valve CPAC NeSSI Workshop May 11, 2006 © Swagelok Company, 2006

  2. Stream Selection Background • Select from an array of similar process samples for a single analyzer (CEM – CO, CO2, SO2, NOx,…) • Sample must be timely and pure • To reduce mixing due to valve failure, standard selection designs use double block and bleed methods. to analyzer

  3. Modular stream selection valves SSV

  4. SSV – Valve module and base

  5. Double Block and Bleed – Traditional to analyzer Stream 1 Stream 2 Stream 3 to vent

  6. Double Block and Bleed – Traditional Stream 1 to analyzer Stream 2 Stream 3 to vent

  7. Double Block and Bleed – Traditional Stream 1 to analyzer Stream 2 Stream 3 to vent

  8. Double Block and Bleed – Traditional Stream 1 to analyzer Stream 2 Stream 3 to vent

  9. Double Block and Bleed – Traditional Stream 1 to analyzer Stream 2 Stream 3 to vent

  10. Double Block and Bleed – Traditional Stream 1 to analyzer Stream 2 Stream 3 to vent

  11. SSV – Valve module

  12. SSV – Internal flow paths

  13. SSV – Inlet section

  14. SSV – Vent section

  15. SSV – Outlet section

  16. 0.795 0.728 0.741 0.783 SSV – Outlet section

  17. SSV Features Integrated Outlet Flow Loop- Provides consistent flow regardless of how many streams are added - Ensures fast efficient purging

  18. SSV Features • Double block-and-bleed function in one compact valve module • System pressures to 250 psi, 500 psi option • Temperatures to 300 oF • 40 psi actuator pressure • 316 SS construction, Viton elastomers • 1/8” FNPT and ANSI/ISA 76.00.02 configurations

  19. SSV Features Unique vented air gap - Prevents system media from entering air actuator - Prevents air actuator gas from mixing with system media - Optional threaded version available

  20. SSV Features Easy to assemble and maintain • All process connections in the base block • DBB Valve Module easily removed with two screws • O-ring kits available

  21. SSV Features • Large diameter piston rises above cylinder • Side of the piston is green • Provides visual and tactile indication of open or closed • Colored button on top for stream identification

  22. Summary • Stream Selection demands pure fluid provided in a timely fashion • NeSSI moves components to modularization and miniaturization • Swagelok’s SSV product provides pure samples at consistently high flow rates within a single modular position

  23. Pneumatically Actuated Switching Valve © Swagelok Company, 2006

  24. Pneumatically Actuated Switching Valve © Swagelok Company, 2006

  25. © Swagelok Company, 2006

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