Mechanical Seal

Mechanical Seal

Traditional stuffing boxes are primarily used to seal pump shafts and shafts with axial and rotational motion for various process pump fluids. Stuffing boxes have provided a rather impractical solution in the history of pump technology. Nowadays, stuffing boxes are being replaced by more technical solutions such as  mechanical seals.  Years ago, most pump shafts were sealed with soft packing rings  compressed by stuffing boxes. However, this type of shaft seal required a lot of liquid just to lubricate the packing and keep it cool.  The modern development of  the "mechanical seal" fulfills the role of preventing product leakage  around the pump shaft by two very flat surfaces, one fixed and one rotating. These mechanical seal surfaces also require some (very small) amount of lubricating or cooling fluid  to form  a hydrodynamic film, but this system usually evaporates and goes undetected. Most pump shafts  are now sealed with mechanical seals. Increasingly, several specialized mechanical seal models  are being used in fluid pumps instead of stuffing boxes or lip seals. Pumps with mechanical seals operate more efficiently and undoubtedly perform more reliably over the long term.

 

Mechanical Seal:- 

 

Mechanical Seal is a device which used to prevent leakage between two connected parts or system.Mechanical seal is used to maintain zero leakage in pumps ,reactors and other equipment. Mechanical Seals are used on there types for different types of application.So let's see some types of Mechanical Seal.

-Single Mechanical Seal

-Dry Mechanical Seal

-Double Mechanical Seal

-Cartridge Mechanical Seal

-Bonded seal

-Conventional seal

-Balanced seal

-Unbalanced Seal

-Pusher Seal

-Non-Pusher

-Diaphragm seal

-Heat seal

-Compression seal

-Glass or Metal seal

-Hydrodynamic seal

-Harmatic seal

-Hydrostatic seal

-Dry Gas Seal