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Seals for Chemical and High Temperature Applications

Chemical processes and high temperatures place special demands on materials and seal construction. We use different forms of stainless steel and special materials in various qualities and know their specific limits of application.

We recommend sealing systems with springs without contact with the pumped medium. Our seal design and construction guarantees the economical and safe operation of your plant.

Chemical and High Temperature Applications
CS 20

CS 20
Cartridge mounted seals, single-acting mechanical seals with higher radial and axial tolerances and external spring assembly

CS 20

Characteristics:

  • pressure balanced, stationary construction type
  • externally-flushed and self-flushed depending on requirements
  • multiple spring-loaded
  • Spring outside of pumped medium
  • independent of rotational direction
  • temperature dependent on the auxiliary seals
  • applicable up to 25 bar
  • V umax. = 15 m/s

Different Versions for Individualisation

Construction Materials:
1.4571, 1.4462, HC4
Materials Rotary and Stationary Ring:
Silicon Carbide, Tungsten Carbide, A/B Carbon
Materials Auxiliary seals:
NBR, Viton (FDA), EPDM (FDA), Kalrez, PTFE
Other Materials:
subject to enquiry
Dimensions / Sizes:
30-340 mm
CSD 21

CSD 21
Cartridge mounted, double-acting mechanical seals for special applications e.g. in the chemical industry

CSD 21

Characteristics:

  • double pressure balanced, stationary construction type
  • quench mode or pressurised
  • multiple spring-loaded
  • Spring outside of pumped medium
  • independent of rotational direction
  • temperature dependent on the auxiliary seals
  • applicable up to 25 bar
  • V umax. = 15 m/s

Different Versions for Individualisation

Construction Materials:
1.4571, 1.4462, HC4
Materials Rotary and Stationary Ring:
Silicon Carbide, Tungsten Carbide, A/B- Kohle, Chrome Steel
Materials Auxiliary seals:
NBR, Viton (FDA), EPDM (FDA), Kalrez, PTFE
Other Materials:
subject to enquiry
Dimensions / Sizes:
24-100 mm
HD 21

HD 21
Dynamic, single-acting mechanical seals, multiple spring-loaded

HD 21

Characteristics:

  • pressure balanced, dynamic construction type
  • externally-flushed and self-flushed depending on requirements
  • multiple spring-loaded
  • Spring outside of pumped medium
  • independent of rotational direction
  • temperature dependent on the auxiliary seals
  • applicable up to 25 bar
  • V umax. = 15 m/s

Different Versions for Individualisation

Construction Materials:
1.4571, 1.4462, HC4
Materials Rotary and Stationary Ring:
Silicon Carbide, Tungsten Carbide, A/B Carbon
Materials Auxiliary seals:
NBR, Viton (FDA), EPDM (FDA), Kalrez, PTFE
Other Materials:
subject to enquiry
Dimensions / Sizes:
in accordance with DIN norm up to 100 mm, above that subject to enquiry
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