ASCO Numatics has been chosen as a sole source supplier for SATORP’s Jubail export refinery project. In cooperation with several valve assembling companies, actuator and valve manufacturers, engineering contractors as well as the end-user (SATORP), ASCO Numatics has developed a variety of solenoid valve by-pass panels for the use of XV and ZV systems (with or without positioners) for the control of single and double acting actuators. The By-pass panels are equipped with Ex d explosion proof solenoid valves and by-pass switches, certified for ultra low demand mode according to SIL IEC 61508. The key-operated by-pass switch allows on-line SOV testing and maintenance, thus increasing the safety level and reducing the risk of downtime. SATORP is a joint venture between Saudi Aramco and Total S.A. and was formed to build the 400,000 bpd Jubail Refinery and Petrochemical complex which is located in the eastern province of Saudi Arabia. Target completion date is 2013.