Mechanical Seals

Type A5

Diaphragm Seals

Robust, long working length, highly accommodating and reliable, rubber diaphragm balanced seal which provides enhanced seal capability, performance and life. Improved design features enhance this popular seal.

Suitable for common US standard housing and working length dimensions.

Available as Type A5 with Type 11 boot-mounted seat, or as Type A5J with Type 31 ‘O’-Ring mounted stationary.


  • Robust, rubber diaphragm balanced Seal
  • Long working length
  • Suitable for common US standard housing

Operating Limits

  • Temperature: -30°C to +150°C
  • Pressure: Up to 26 bar (377 psi)
  • For full Performance Capabilities please download data sheet

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

Send us an enquiry

To help us provide you with the best answer, please provide as much of the following as possible:

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

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