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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.
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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
X6CRNIMOTI17-12-2
Mtrl mech.seal spring
X6CRNIMOTI17-12-2
Mtrl Secondary seal inboard
FLUORINATED RUBBER,
ETHYLENE-PROPYLENE-DIENE-RUBBER
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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