Answer
Per IMER's product sheet the Booster 20 is a compact, towable diesel piston pump with a 2-cylinder system, hydraulic control and an S valve. It has a 3-cylinder diesel rated at 28 hp. Flow is 3 to 20 cu yd/hr and pumping pressure is 1,000 psi. IMER notes that maximum flow and maximum pressure cannot be reached at the same time. Maximum aggregate size is 1 in, the pipe outlet is a heavy-duty 4 in, the hopper holds 7 cu ft and loads at 42.5 in, and it weighs 3,100 lb. It suits concrete, shotcrete and high-strength grout, and has an automatic greasing system.
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Reviewed by our parts specialists from IMER manuals and parts books. Check the part number on your machine or in its parts book before you order. Not sure? Ask a parts specialist.