... 10G-G dredge pump Detailed description of G/GH gravel pumps:1) Cantilevered, horizontal, centrifugal, one stage, single ... mechanical seal. Driving type: V-belt drive, hydraulic coupling drive,fluid couling drive, frequency conversion drive devices, thyrister speed regulation ectThey are ... course of river, and other fields. Type GH pumps are of high head ones. TYPEOUTLETDIAMETERSPEEDN(r/min)Performance ...