Specific information as follows: Discharge Diameters 4” to 16” (100mm to 400mm) Heads Range 230ft (70m) Flow rate 8,000gpm (4,100m3/h) Casing Pressure Tolerance 300psig (2,020kPa) Model meaning: 6/4D-YG 6/4:Inlet/Outlet Diameter is 6/4 inch YG: YG series Sand Gravel Pump D: Frame type Liners material: A05 A07 A33 A49 etc Driven Type: CR ZV CV Seal type:gland seal, expeller seal, machanical seal Discharge direction can be positioned at any intervals in 360 degrees Applications: Sand Gravel Pumps are designed for continuously handling the most difficult higher abrasive slurries which contain too big solids to be pumped by a common pump. Such as mining, explosive sludge in metal smelting, dredge the waterway, grudging in dredger and course of river. After sales service If necessary, we would arrange the engineer to the pump working place. Mail:bobo@yaobangpump.com Skype:yaobang88