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Design with elastomer bellows is frequent and among most commonly used. Short length allows wide range of application. This type is highly recommended for sealing media with possibility of crystallization or containing solids in waste water or sewage application. Ideal for domestic and garden pumps, whirlpool and swimming pool pumps, dishwasher pumps, submersible and water pumps.

Working conditions

Face material

  • carbon-graphite
  • Cr-steel
  • Cr-Ni steel
  • tungsten carbide
  • silicon carbide
  • alumina

Operating limits:

  • p= 6 bar
  • t= -20 to 140 °C
  • v = 10 m/s