LHB convection environmental protection pump is the achievement by Tianjin Vniuensify & Tianjin Haihe Industrial Pump Works. It applies to electric power, metallurgy and so on. The concentration is as followed: mortar 50%, calx 70%. This series make some innovation in structure design, waterpower design, besides these, it has other strong points, such as, high efficiency, enormity on energy, low noises. The entire performance is better than the similarities around the country.