一、Features: 
1. Vertical direct connection design, no coupling, impeller and motor coaxial operation, pump integration, high component concentricity, smooth operation, small vibration, low noise, in line with the requirements of environmental protection design; Small area, light weight, beautiful appearance, economical and practical.
2. Double runner design, reducing radial force and extending the service life of mechanical seals, motor bearings and impeller;
3. Non-leakage mechanical seal design solves the serious leakage problem of centrifugal pump packing and ceramic seal, and ensures that the operation site is clean and tidy, meeting the requirements of safety and environmental protection;
4. Strong interchangeability of parts, convenient maintenance and cost saving.
二、Model Description: 

Example: the TFL (I), 200-500 A

TFL~ TONFUN pump vertical centrifugal pump industry

200~ pump inlet and outlet diameter

500~ nominal diameter of impeller mm

I ~ expanding flow pattern

A~ impeller is cut for the first time

三、Spectrogram: 

四、Application field: 
Used to transport water and for physical and chemical properties similar to water, and does not exceed 80 ℃ temperature of the liquid (such as more than 80 ℃, as a special order products), Widely used in chemical industry, light industry, civil construction of fluid pipeline, water circulation system, cooling circulatory system, especially for high-rise buildings water supply, garden sprinkler irrigation, fire pressurization, cold and hot water circulation pressurization in long-distance transmission, and central air conditioning, plastic machinery cooling water circulation and so on. Its unique advantage is shown by a typical clean water centrifugal pump