LGM50/80PLD-E Double-Plunger hydraulic Grout Pump is designed with two low-wear plungers pump. With the features of double acting, ball valves, low pressure surge, variable pressure and flow. Therefore, this pump is suitable for all grouting work, up to 8mm particle size , such as, for the pumping of backfill mortar behind tunnel liners, grouting in soil, earth foundation stabilization, waterproofing, tunnel lining, underwater foundations, bridge decks, deep well casing, slope line grouting, etc.