| http://www.w3.org/ns/prov#value | - For improving the efficiency of nearly identical parallel trains and loops, use a high signal selector to choose the furthest open valve as the input to a single VPC. While there is no such thing as identical equipment, the dynamics can be similar enough regardless of which valve is selected to enable the use of a single VPC. If the unit operations or process loops are quite different, a VPC is de
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