... . Modular Mutiwell 4.PLC Based. 5. Solar Powered Well/Wellhead Control Panel Well/Wellhead Control Panels are designed for controlling the Subsurface Safety Valves, Master ... Valves, Choke Valves, Gas Lift Valves, and other surface valves. Wellhead Control Panels can be supplied with RTU,ESD Station, Hi/Low ... most severe weather conditions at offshore, onshore and desert. Well/Wellhead Control Panel