The unit is suitable for use at on-line pressurized pulsed flushing application in static hydraulic systems with medium pressure (up to 110 bar). An example of these systems can be, but not limited to, wellhead hydraulic control systems, ESDV (Emergency Shut Down Valve system) and hydraulic choke systems.
By flushing on-line means that all static hydraulic systems can be cleaned out by turbulence flow with a Reynolds figure > 3000, without shutting down the hydraulic system and therefore avoid any production loses caused by oilflushing. This is an essential advantage compared with conventional oilflushing procedure.
The unit is controlled by a 4-20 mA EEx loop calibrator and an air-operated actuator and therefore, also suitable to use in Zone II areas. A patent has been applied for the system described above.
