Type 1678

Stepped shaft, balanced sinusoidal wave-spring, ‘O’-Ring mounted Mechanical 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 Mechanical Seal faces
• Stepped face for stepped shafts
• General purpose Mechanical 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.

Vulcan mechanical seal 1678

Vulcan mechanical seal 1678

Vulcan mechanical seal 1678