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4M Pump-specific cartridge mechanical seal

Pump-specific cartridge mechanical seal 4M

For the Etanorm/MegaCPK pump type series. Single balanced cartridge seal in stationary design. The seal design facilitates installation and ensures optimal pre-loading.
Spare Parts

Main Applications

  • Drinking water
  • Service water
  • Hot water

Technical Data

Cartridge seal
Yes
Design
Stationary
Balancing
Balanced mechanical seal
Sealing type
Single
Maximum allowable fluid temperature
140 °C

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Benefits

  • Single cartridge mechanical seal, bi-directional and balanced. Specially designed for the seal installation space of Etanorm and MegaCPK pumps.
  • The seal design facilitates installation without assembly fixtures or adjusting dimension, ensuring optimal pre-loading of the mechanical seal and low wear.
  • Stationary design; multiple springs located outside the fluid handled

Technical Data

Maximum allowable axial movement
2 mm
Minimum allowable axial movement
-2 mm
Component type series
KSB Etanorm [B]
Cartridge seal
Yes
Maximum allowable dynamic pressure
25 bar
Design
Stationary
Balancing
Balanced mechanical seal
Sealing type
Single
Mtrl metallic compon.mech.seal
1.4571
Mtrl mech.seal spring
1.4571
Mtrl Secondary seal inboard
FKM,
EPDM
Mtrl Mating ring inboard
Q1 [SIC, DRUCKLOS GESINTERT],
U2 [TUNGSTEN CARBIDE, NI-BINDER],
Q7 [SIC,POROUS,SINTERED PRESSURELESS,NO GRAPHIT]
Mtrl Primary ring inboard
A [CARBON, METAL-IMPREGNATED],
B [CARBON, RESIN-IMPREGNATED],
Q1 [SIC, DRUCKLOS GESINTERT],
U2 [TUNGSTEN CARBIDE, NI-BINDER],
Q7 [SIC,POROUS,SINTERED PRESSURELESS,NO GRAPHIT]
Direction of rotation
Bi-directional
Maximum allowable sliding velocity
20 m/s
Spring design
Multiple springs
Maximum allowable static pressure
37.5 bar
Maximum allowable fluid temperature
140 °C
Minimum allowable fluid temperature
-15 °C

Sectional Drawings

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