Introduction: As the sump pump, series lm(r)s pumps are of single casing and made of wear-resistant metal and natural rubber. The wear parts are made of high chromium for series lms and are rubber lined for series lrs. According to liquid level of the slurry pool, the vertical slurry pump transmission shaft and suction pipe could be chosen for different length. This sump pump could operate under the best condition with different speeds. Application: The vertical slurry pumps are designed to transport the abrasive, large particle and high-density slurries and applied over the fields such as metallurgy, mining, chemistry, coal washery, power plant, building materials and environmental protection.