HR20 Type HR20 is externally mounted internally balanced multi-coil spring seal.
The unique feature of this type of seal is that, it eliminates the shaft step or sleeves for balancing.

These seals are externally mounted & hence the metal parts including the springs do not come in contact with the circulating media & therefore can be use for corrosive or abrasive media. sealing.
The compact design eliminates the requirement of extra radial & axial
space for its installation.

Applications :
Generally used for handling corrosive chemicals, hydrocarbons, general & light chemicals.