6 Operation
31 of 44
4STQ
2580.821/04-EN
NOTE
Any leakage must be drained off in a controlled way and safely disposed of.
Components which may come into contact with the seal leakage must either be
corrosion-resistant or must be adequately protected.
▪ For physical and technical reasons a mechanical seal cannot be leak-free.
▪ Leakage can be either in liquid or gaseous form. Its aggressiveness corresponds to
that of the fluid to be sealed off.
▪ The quantity of leakage is influenced by several factors:
– Seal selection
– Manufacturing tolerances
– Operating statuses
– Smooth running of the pump
▪ In the running-in phase of the mechanical seal higher leakage can occur.
6.3 Operating limits
NOTE
Always observe the operating limits in the product literature and the other
applicable documents.
NOTE
The following values are limits that depend on the seal face materials and
elastomer materials. As the characteristics influence each other, operation at
minimum/maximum limits is not possible for all characteristics at the same time.
Table6: Operating properties
Characteristic Value
Cartridge seal C022025-
M1-4STQ
C033033-
M1-4STQ
C033055-
M1-4STQ
C055065-
M1-4STQT
C055065-
M1-4STQ
C120120-
M1-4STQ
C150160-
M1-4STQ
C190190-
M1-4STQ
Pump Amarex
KRT /
Sewatec
Amarex
KRT /
Sewatec
Amarex
KRT /
Sewatec
Sewatec Sewatec Sewatec Sewatec Sewatec
Bearing bracket S01 S02 S03 S05 S05 S08 S09 S10
Fluid handled Raw
waste
water
Raw
waste
water
Raw
waste
water
Raw
waste
water
Raw
waste
water
Raw
waste
water
Raw
waste
water
Raw
waste
water
Maximum
temperature
T [°C] ≤ 100 ≤ 100 ≤ 100 ≤ 70 ≤ 70 ≤ 70 ≤ 70 ≤ 70
Maximum dynamic
pressure
p
[bar]
16 16 16 11 11 10 10 10
Maximum static
pressure
p
[bar]
20 20 20 16 16 16 16 16
Maximum speed n
[rpm
1
]
3600 3600 3600 1450 1450 1160 1160 1160
Axial displacement [mm] ± 1 ± 1,5 ± 2 ± 2,5 ± 2,5 ± 2,0 ± 2,5 ± 2,5
Weight [kg] 1 1 2 6,5 6,5 11,8 25,0 49,0
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