BQS Series Flameproof Submersible Sand Pump Introduction: The BQS series mine flameproof submerged sand discharge pump is composed of a water-filled submersible three-phase asynchronous motor and a multi-stage centrifugal pump. Execute the GB 3836.1, GB 3836.2, MT/T671 standard. Compared with the traditional centrifugal pump, it has the advantages of convenient installation and maintenance, not afraid …