Mechanical Seals for Pumps

Know more about Mechanical Seals for Pumps

Mechanical seals touches almost every part of industrialised society. Wherever a pivoting shaft moves liquid, mechanical seals assume a key part in fixing process liquids in, keeping contaminants out, or both.

A couple of fundamental parts and standards in mechanical seal configuration add to a working seal at the interface of the turning shaft and stationary pump/blender/seal-chamber lodging. Mechanical seals are normally end-confront seals or turning face seals, yet in a few plans, they can be circumferential or even a half-breed of lip-sort seals.

Principle Components of Mechanical Seals

In either case, the accompanying parts are normal to every mechanical seals for pumps:

  • Rotating essential fixing component: settled to/driven by the pole and seals against the stationary essential fixing component
  • Stationary essential fixing component: settled to the stationary lodging of the pump, blender or other hardware through which the turning shaft passes and seals against the pivoting essential fixing component
  • Closing power: inclinations the essential fixing components in contact to start fixing
  • Static and additionally unique optional seals: seal between the mechanical seal parts and the gear shaft and lodging

Mechanical seals mainly require the good quality good fluid, which includes clean water, or other good fluid, for the oil of the seal faces. The countenances in a commonplace mechanical seal are greased up with a limit layer of gas or fluid between the appearances. Depending on mechanical seal system requirement, Oil can be given from the pumped fluid itself or an outside source.

Mechanical Seals Types

There are various plans accessible for the mechanical seal design available at the mechanical seals manufacturers in India. Seeing how they will help the per users select the suitable sort of their application.

They are:

  • Conventional
  • Pusher
  • Non-pusher
  • Unbalanced
  • Balanced
  • Cartridge

Mechanical Seals Selection

If the full working conditions are known, the best possible choice of a mechanical seals can be made easily. Recognisable proof of the correct fluid to be taken care of is the initial phase in seal determination.

Plan and Material Selection

Seal configuration can impact film thickness by adjusting the end compels on the fixing interface such that the fixing interface does not end up plainly over-burden as process weights increment.

Another approach to impact film thickness is to configure surface components at the fixing interface that advance hydrodynamic lift between the rotational and stationary fixing components. This can help make a deliberate detachment at the fixing interface that outcomes in a thicker liquid film that gives cooling and reductions confront wear.


The types of the mechanical seals and game plan chose must meet the coveted unwavering quality, life cycle expenses, and discharge measures for the pump application. Double gas barrier and double seals are the number one seals of the choice in the market. To be noticed though this is a subject for another segment, there are exceptional single seal lodging plans that significantly limit the abrasives achieving the seal faces, even without outer water flush.

Read More Articles:

Advantages / Disadvantages of Mechanical Seals

The Difference between Single and Double Mechanical Seals


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