Rotork’s new IQ intelligent electric valve actuators are performing crucial leak detection and isolation duties on a new automated jet fuel storage and refuelling installation (JFSI) at a strategic NATO airbase. This specification incorporates vital leak detection and isolation provisions that are entrusted to four Atex certified explosion-proof Rotork IQ valve actuators, controlled and monitored by the centralised Cegelec PLC over a dual Profibus 2-wire loop highway. The actuators will automatically close off the affected section of the pipe-work network if a leak is indicated by a loss of pressure instrumentation signal. The actuators are also used to perform regular routine tests for pressure loss and leakage, as well as diverting fuel flows into appropriate areas for aircraft refuelling or tank filling etc. Operating data from the actuators, including valve position status and availability, is communicated to the PLC during automatic operation, whilst each actuator can also be operated locally if circumstances dictate.
