Oversize particles should be eliminated. Excessive mortar content will be necessary to effectively pump a concrete containing crushed aggregates than for concrete containing rounded aggregates.
Pressure difference sensing and reversing technology, as well as main oil pump electric proportional control buffering technology to decrease reversing time. As such, SANY pump is able optimize the main oil cylinder and swing cylinder buffering & reversing time matching, resulting in extremely high-efficiency pumping.
Pump manufacturers offer a variety of different line pumps to meet a wide variety of needs. Line pumps typically employ ball-valve-type pumps. While the smaller models are often called grout pumps, many can be used for structural concrete and shotcreting where low-volume output is suitable. They're also used for repairing underwater concrete, filling fabric forms, placing concrete in heavily reinforced sections, and building bond beams for masonry walls. Some hydraulically driven models have pumped structural concrete at outputs exceeding 150 cubic yards per hour.
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