racteristics, Cv and Kv sizing, noise, actuators and positioners"> <span> Control Valves </span> </a> </li> </ul> <ul> <li> <a href="process-control-systems-documentation-t_46.html" title="Documentation of process control systems - Block Flow Diagrams (BFD), Process Flow Diagrams (PFD), Piping and Instrumentation Diagrams (P&amp;amp;ID) and more"> <span> Documentation </span> </a> </li> </ul> <ul> <li> <a href="measurements-instrumentation-t_70.html" title="Measurement and instrumentation principles"> <span