What are the advantages and disadvantages of hangzhou submersible pump? Advantages of hangzhou submersible pump: hangzhou submersible pump beautiful appearance, simple structure, easy to install and use, mobile use, flexibility. Disadvantages of submersible pump: 1, the structure is limited, than the centrifugal pump head range is small, so the selection range is affected. 2, the work of hangzhou submersible pump immersed in the medium, installation and maintenance than the centrifugal pump difficult, at the same time, the parts easy to damage the service life of the whole machine is far lower than the centrifugal pump. 3. Automatic coupling device is required for fixed wet installation. Hoisting equipment is required for installation and maintenance to increase the investment of ancillary equipment. 4. Cables and seals are easy to age, leading to leakage. 5, the motor and bearing should not work in >50 degree medium. 6. The motor is cooled by the medium, and the exposed liquid level shall not exceed 1/2. The control is prone to problems and liquid drainage is not complete. 7, hangzhou submersible pump export and coupling device excuse is not strict, resulting in insufficient output. 8. Submersible pump motor and casing have short service life in corrosive media. 9. The seal is damaged, which causes the motor to be short-circuited and burned.