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4ES Pump-specific cartridge mechanical seal

Pump-specific cartridge mechanical seal 4ES

For the Etanorm-R pump type series. Single cartridge seal in stationary design. The large springs are located outside the fluid handled and thus protected from contamination.

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

  • Stationary, robust seal design
  • The large springs with high axial mobility are located outside the fluid handled and thus protected from contamination.
  • The mechanical seal cover is centred on the pump cover and confines the gasket.

Technical Data

Maximum allowable axial movement
1.5 mm
Minimum allowable axial movement
-1.5 mm
Component type series
KSB Etanorm-R [B]
Cartridge seal
Yes
Maximum allowable dynamic pressure
16 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
A [CARBON, METAL-IMPREGNATED],
B [CARBON, RESIN-IMPREGNATED],
Q1 [SIC, DRUCKLOS GESINTERT]
Mtrl Primary ring inboard
Q1 [SIC, DRUCKLOS GESINTERT]
Direction of rotation
Bi-directional
Maximum allowable sliding velocity
16 m/s
Spring design
Multiple springs
Maximum allowable static pressure
24 bar
Maximum allowable fluid temperature
140 °C
Minimum allowable fluid temperature
-40 °C

Sectional Drawings

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