Seals for Contaminated Liquids

Whether for the steel industry, for sewage treatment plants, for power stations or for the paper industry, with our range of seals for pumping either low or high levels of contaminated liquids, we consistently rely on protected spring chambers without direct contact with the medium (the liquid) itself. If at all possible in the system and considering their longer duration service life and ease of maintenance, we recommend stationary, cartridge-mounted mechanical seals. We adapt our seals to each individual installation location and, as a manufacturer, always find an economical solution for the requirements of your plant.

CS 20

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

Characteristics:

pressure balanced, stationary construction type
externally-flushed and self-flushed depending on requirements
multiple spring-loaded
Spring outside of pumped medium
independant 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

CS 21

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

Characteristics:

pressure balanced, stationary construction type
externally-flushed and self-flushed depending on requirements
multiple spring-loaded
Spring outside of pumped medium
independant 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:
24-125 mm

HD 21

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

Characteristics:

pressure balanced, dynamic construction type
externally-flushed and self-flushed depending on requirements
multiple spring-loaded
Spring outside of pumped medium
independant 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

MD 11

Dynamic, single-acting mechanical seals

Characteristics:

dynamic construction type
externally-flushed and self-flushed depending on requirements
temperature dependent on the auxiliary seals
applicable up to 10 bar
V umax. = 12 m/s
Installation length acording to DIN 24960

Different Versions for Individualisation
Construction Materials:
1.4571, 1.4310

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

MD 17

Dynamic, single-acting mechanical seal, independent of rotational direction

Characteristics:

dynamic construction type
externally-flushed and self-flushed depending on requirements
temperature dependent on the auxiliary seals
applicable up to 10 bar
V umax. = 12 m/s
Installation length acording to DIN 24960

Different Versions for Individualisation
Construction Materials:
1.4571, 1.4310

Materials Rotary and Stationary Ring:
Silicon Carbide, Tungsten Carbide, A/B Carbon, Chrome Steel

Materials Auxiliary seals:
NBR, Viton (FDA), EPDM (FDA), PTFE, Kalrez

Other Materials:
subject to enquiry

Dimensions / Sizes:
in accordance with DIN norm up to 100 mm, above that subject to enquiry

MD 31

Dynamic, single-acting bellow seal, independent of rotational direction

Characteristics:

dynamic construction type
externally-flushed and self-flushed depending on requirements
independant of rotational direction
temperature dependent on the auxiliary seals
applicable up to 10 bar
V umax. = 12 m/s
Installation length acording to DIN 24960

Different Versions for Individualisation
Construction Materials:
1.4571, 1.4310

Materials Rotary and Stationary Ring:
Siliciumkarbid, Tungsten Carbide, A/B Kohle

Materials Auxiliary seals:
NBR, Viton, EPDM

Other Materials:
subject to enquiry

Dimensions / Sizes:
in accordance with DIN norm up to 100 mm, above that subject to enquiry