M481

Features

For top entry drives
Double seals
Unbalanced
Independent of direction of rotation
Multiple springs rotating
Liquid-lubricated
Cartridge unit

Advantages

• Ready-to-fit and factory-tested units
• Available with or without bearing
• Suitable for standardizations
• Seal can be applied at higher
  pressure and rotating speed than
  specified by DIN
• Self-closing on product side
• ATEX certification on request

Operating range

Shaft diameter:
d1 = 40 … 220 mm (1,57″ …. 8,66″)
Seal Pressure:
p1 = vacuum … 16 bar (232 PSI),
p3 = max. 18 bar (261 PSI)
Temperature:
t1 = -40 °C … +200 (350*) °C
(-40 °F … +392 (662*) °F)
Sliding velocity:
vg = 0 … 5 m/s (0 … 16 ft/s)
For applications beyond this range,
please inquire.
* with cooling flange

M481 Materials

Seal faces: Carbon graphite or Silicon
carbide, FDA conform
Seats: Silicon carbide, FDA conform
Secondary seals and metallic parts acc.
to application and customers’
requirement.

Standards and approvals

• FDA
• ATEX
•DIN 28138 (mechanical seals for
agitator shafts)
• DIN 28136 T2 (for steel vessels)
•DIN 28141 (flange connection for
steel vessels)
•DIN 28154 (shaft end for steel
vessels)

Recommended applications

Refining technology
Petrochemical industry
Chemical industry
Pharmaceutical industry
Food and beverage industry
Agitators
Reactors

Download catalog for more information:M481