Suitable for a wide range of services conditions.


  • For use with extremely corrosive chemicals, including concentrated acids and salts, strong oxidizing and reducing agents, and chemically active organic compounds.
  • For external mounting in pumps and agitators vessels.

The DS-710 seal has a replaceable face insert, so that different face materials can be used to
handle a wide range of corrosive and abrasive liquids. The DS-710 seal face is integral with the composite PTFE bellows.

 View Sheet

Operating Conditions

  • Max. Operating Pressure : 12 kg/cm 2 *
  • Temperature Range : -50 to 250 *
  • Max. Rubbing Speed : 25 m/s

*(Depend on combination of materials)

Design Features/Benefits

  • Mounted outside the seal chamber with only the internal surfaces of the secondary seals and face in contact with the process liquid.
  • Maximum corrosive resistance, longlife operation.
  • Multiple springs exert even closing force on seal faces. Ensure even loading of seal face and compensates for acceptable shaft misalignment.


Standard Materials

  • Metal Parts : SUS 316
  • Spring : SUS 316
  • Rotary Face : Silicon Carbide/Tungsten Carbide/Carbon
  • Stationary Face : Silicon Carbide/Tungsten Carbide/Carbon
  • Secondary Seals : PTFE

*(Other configuration of materials also available on request)