Coughran Controllers - Control Global
realize that the control needs to be slow! Then Lambda tuning provides a direct and simple way to achieve this. Figure 8. Level control of Natural Gas Liquids in the surge tank that supplies a depropanizer column. The level controller output cascades to a slave flow loop on the surge tank outlet, which we have already seen in Figure 3 with ...
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www.controlglobal.com17. HARD FACING – A material harder than the surface to which it is applied; usually applied to valve seats to resist galling or fluid erosion. 18. SINGLE SEATED – A valve having a plug with a single seat. 19. DOUBLE SEATED – A valve featuring a plug with two seats. 20. BALANCED – A valve featuring a pressure balanced plug with two ...
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