The Godwin 4" (100mm) Heidra 100 hydraulic submersible pump is a compact self-contained pumping unit featuring a diesel driven power pack and 4" (100mm) submersible hydraulic pump. With variable speed diesel engine power, the Heidra 100 can meet a variety of flow and head requirements up to 800 gpm (50 l/sec.) and 130' (39.6 meters) of total dynamic head with a simple throttle adjustment. Add the ability to pass solids to 2" (50mm) diameters, dry running capabilities, a cast chromium steel impeller, and you have a rugged dewatering / solids-handling, hydraulic submersible pump ready to go anywhere.