Mechanical Seals

Type 1678

Wave Spring Seals

Stepped shaft, balanced sinusoidal wave-spring, ‘O’-Ring mounted seal, similar to Type 1677, most commonly utilised in higher-pressure pump applications.

Vulcan Types 1677, 1677M and 1678 all have sinusoidal continuous wave-springs without joints or weld-spots, for maximum spring reliability.

Stocked as a standard assembly with “stepped-size down” Type 8 DIN LONG ‘O’-Ring seat with anti-rotation provision.

Features

  • Double wave spring for strength and reliability
  • Ideal for higher pressure pump applications
  • Compact design for confined spaces
  • Hydraulically-balanced seal faces
  • Stepped face for stepped shafts
  • General purpose seal

Operating Limits

  • Temperature: -30°C to +140°C
  • Pressure: Up to 40 bar (580 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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