The type DR1 & DR2 Dry running seals are developed for agitators, mixers, reaction vessels, blowers, fans, etc. wherein shaft drive is located at the top of the vessel. The seal and seal faces are exposed to the gases / vapours of the product and there is no liquid coming in contact with the seal and faces. That is why the seal is called "Dry Seal".

Thanks to the self lubricating properties of Carbon, the Carbon face rubs against a Silicon Carbide face which results in minimum heat generation at the faces and make it a very stable sealing pair.

 

The principal advantages associated with these dry running seals are:

  • Simple construction for installation and maintenance.
  • Very cost effective since no lubrication / cooling system is required for seal.
  • There is no barrier fluid, hence there is no possibility of product contamination.
  • The seal accommodates the shaft movement vibrations and deflection.

Seal arrangement type DR2 with bearing can be offered for difficult to handle vessels having greater misalignments.

 

Face Material

Metal Components

Secondary Sealing

Performance Capabilities

  • Pressure
  • Temperature
  • Speed
  • DIN (Metric)

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Carbon, Silicon Carbide

Stainless Steel, Nickel Alloys.

EPR, Viton, Per-fluoro-elastomer

 

Up to 1.37 MPa
1200 C
Up to 1.0 m/s
25 mm to 115 mm
(consult ESSIL. for applications other than above limits)




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