一、Features: 
1. Due to the conical open air intake, large opening, smooth flow passage, small air and flow resistance, small gap between the impeller and the cone, high efficiency.
2. Significantly increased air extraction, low shaft power, greatly reduced energy consumption, and effectively prevented cavitations.
3. At the same time, less heat is generated which improves the efficiency of heat exchanger
4. Comparaed with flat vacuum pump, the exhaust port of the cone type vacuum pump is at the lower part of the pump, and the impeller is offset to the lower part of the pump too, the liquid level is lower at rest, the starting current is small, so the operation is safer and more reliable
二、Model Description: 

Single pump model representation method:

1, 2, 3, 4, 5, 6, 7

T, F, T, C.

TFTC-TONFUN cone double - stage liquid ring vacuum pump

The nominal diameter of a vacuum pump impeller

三、Spectrogram: 
四、Application field: 
Power industry: condenser vacuum