Mechanical seal DFB-80-80-240 for power plant use

Date:2018/12/7 11:13:30 Visits: Author:Dongfang YOYIK Engineering Co; Ltd,

Mechanical seal DFB-80-80-240 is a kind of shaft packaging device for rotating machinery. For example, centrifugal pumps, centrifuges, reaction kettles and compressors and other equipment. Because the transmission shaft runs through the inside and outside of the equipment, there is a circumferential gap between the shaft and the equipment. The medium in the equipment leaks out through the gap. If the pressure in the equipment is lower than the atmospheric pressure, the air leaks into the equipment. Therefore, there must be a shaft encapsulation device to prevent the leakage.

There are many kinds of shaft seals. Because of the advantages of mechanical seals, such as less leakage and long service life, mechanical seals are the most important shaft seals in the world. Mechanical seals, also known as end-face seals, are defined in the relevant national standards as follows: "a device for preventing fluid leakage consisting of at least one pair of end faces perpendicular to the rotating axis, which keep sticking and merging relative sliding under the action of fluid pressure and elasticity (or magnetic force) of compensating mechanism and the cooperation of auxiliary seals."

The same series of products are:

stator cooling water pump  YCZ50-250C
stator cooling water pump  YCZ50-250A
level switch OWK-1G
servo valve 
servo valve
EH oil main pump  
shutdown electromagnet 
AST solenoid valve coil Z6206052 VAC110
vacuum pump  30SPEN
servo valve 

[2018-12-7-Z]