（1）the YW type liquid pump is a vertical single stage single suction centrifugal pump structure. This series of pumps is a semi open impeller. There is a mixing blade in the extension of the suction side of the impeller, and the cutting tools can be used to crush the weeds in the front cover.
It is mainly used for environmental protection, municipal engineering, thermal power plant, coal gas coking plant, refinery, steelmaking plant, mining, paper industry, cement plant, food factory, printing and dyeing industry, heavy oil, heavy oil, oil residue, muddy liquid, mud, mortar, flow sand and urban sewage sludge, as well as mud sand residue. Fluid and corrosive liquids. Type YW can also suck all kinds of large and medium-sized biogas digesters for manure and sewage. It
（2）model meaning: 80YW80-20A
YW- liquid multipurpose sewage pump
Outlet diameter of 80- pump (mm)
Design point flow (m3/h) of 80- pump
Design point lift (m) of 20- pump
The first cutting of the A- impeller
（3）the transmission mode of the pump: the pump is connected with the motor through the elastic coupling, and the pump rotates clockwise from the direction of the prime motor.
The YW pump is a single stage single suction pump. The pump is used to connect the hydraulic components of the pump and the bearing body and supporting disc. The liquid is discharged by the outlet pipe parts. The impeller is a semi open impeller, and the impeller is equipped with a stirring blade at the inlet extension of the impeller blade to transport the medium containing the particles. The maximum underwater depth of the pump is 8m. When the length of the liquid is over 1.5m, the shaft structure should be adopted and the rolling bearing (grease lubrication) is installed near the shaft, and the coupling sleeve is used. The bottom rolling bearing of the pump is separated from the liquid surface by mechanical seal and does not touch the liquid. The pump bearing has enough rigidity to ensure the balanced operation of the pump. If you are running deep, you can add a suction pipe (marked in the contract).