Type 1659/1659S - Multiple Spring Mechanical Seals | Vulcan Seals
Mechanical Seals

Type 1659/1659S

Multiple Spring Mechanical Seals

Type 1659 Multiple Spring Mechanical Seal

Narrow profile, metric shaft, multiple spring Mechanical Seal with a highly efficient design. These Mechanical Seal are frequently fitted with Type 24 DIN Long 'O'-Ring stationary seals.

Type 1659 incorporates a PTFE wedge secondary Mechanical Seal.

Type 1659S is an 'O'-Ring Mounted design.

Specify a Type 24 DIN Long 'O'-Ring stationary seal by addition of an "L" to the end of the type: 1659L / 1659SL.

The stock size code is always set by the shaft size under the seal body.

A PTFE backup ring is recommended to be specified for higher pressure ‘O’-Ring applications.


  • Narrow profile, Multiple Spring Mechanical Seal
  • Highly efficient design
  • Fitted with 24 DIN Long 'O'-Ring Stationaries

Operating Limits

  • Temperature: -30°C to +140°C
  • Pressure: Up to 23 bar (333 psi)
  • For full Performance Capabilities please download data sheet

Limits are for guidance only. Product performance is dependent on materials and other operating conditions.

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  • Vulcan Type Number
  • Shaft size
  • Seal face materials
  • Elastomer materials
  • Quantity

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