BL-type single-stage direct-coupled centrifugal force between machinery specializing in the production of clean water pump, pump and motor directly connected to the seat connection, sealed with a special mechanical seal, with good wear resistance, long life, small size, light weight , more compact structure on the basis of the original, easy assembly and disassembly, etc., but also to solve the root filler filler traditional distribution emerged as the seal is too loose, worn, causing leaks, leaks, or packing too tight, hardened filler, filler when dry friction heat expansion card dead shaft, transmission and other issues affecting the pump. The suction pump for water and viscosity 5E less liquid temperature does not exceed 60 ℃, the applicable type mining enterprises, urban water supply, agricultural irrigation and ships equipped with water according to the direction of pump usage for users to install 90 ℃, 180 ℃, 270 ℃ rotation.