SG4 is a accessory for trash pumps DOA models SP45 - SP55 - SP65. The accessory is a set formed by: - SG4 body and cylinder, this element to be installed on the pump outlet mouth - Hydraulic control valve and hoses that can control the opening/ closing action of the gate SG4 transforms the pumps in “mixers” to allows to shake and reduce to a more fluid state liquids that can be thick, loaded and viscous like those that can be found in waste water treatment plants, anaerobic digesters, API separators, petrochemical plants and refineries, environmental operations, and for moving all liquids not easy to pump. The SG4 is a "retrofit accessory" that can be installed on pumps after the purchase, its action as mixer is necessary when the liquid to pump is very thick and have suspended solids (like sediments, mud balls or oil balls or other agglomerate of semi solid/ pasty liquids) the "balls" must be disintegrated to become more fluid and be pumped, the balls neutralisation is needed also to avoid that may choke the pump inlet. After some minutes of this treatment the liquid can be pumped better and the pump will be used in its natural function.
