Offshore and Onshore electrical flushing units Â
Prior to flushing the supply, sensitive components such as servo valves etc. should be either removed / replaced by bridging plates. Actuators or components which present a significant restriction to flow should be bypassed with suitable piping. Supply, return and looping hoses will be connected together and fluid circulated through the flushing unit and hoses until a minimum of NAS 1638 Class 6 is achieved.
Using the flow rates stated, flushing will continue for 1- hour minimum before a sample is taken for analysis. If the results are not within the specifications, flushing will continue and sample will be taken every 1- hour until the required cleanliness class is achieved.