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4WD Pump-specific cartridge mechanical seal

Pump-specific cartridge mechanical seal 4WD

For the WKTB pump type series. Double, balanced cartridge seal, dynamic design. Especially designed for applications with negative suction pressure. Suitable for Plan 52.
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Main Applications

  • Pumping condensate in power stations and industrial plants

Technical Data

Cartridge seal
Yes
Design
Dynamic
Balancing
Balanced mechanical seal
Sealing type
Double
Maximum allowable fluid temperature
100 °C

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Čechy     241 090 213
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Benefits

  • Double cartridge seal especially designed for applications with negative suction pressure Suitable for Plan 52.
  • Return of fluid handled from the seal chamber to API Plan 13 or, alternatively, supply of clean liquid to the seal chamber to Plan 32 possible.

Technical Data

Maximum allowable axial movement
3 mm
Minimum allowable axial movement
-3 mm
Component type series
KSB WKTB [A]
Cartridge seal
Yes
Maximum allowable dynamic pressure
25 bar
Design
Dynamic
Balancing
Balanced mechanical seal
Sealing type
Double
Mtrl metallic compon.mech.seal
1.4571
Mtrl mech.seal spring
1.4571
Mtrl Secondary seal inboard
FKM,
EPDM
Mtrl Mating ring outboard
Q1 [SIC, DRUCKLOS GESINTERT]
Mtrl Mating ring inboard
Q1 [SIC, DRUCKLOS GESINTERT]
Mtrl Primary ring outboard
A [CARBON, METAL-IMPREGNATED],
B [CARBON, RESIN-IMPREGNATED]
Mtrl Primary ring inboard
A [CARBON, METAL-IMPREGNATED],
B [CARBON, RESIN-IMPREGNATED]
Direction of rotation
Bi-directional
Maximum allowable sliding velocity
10 m/s
Spring design
Multiple springs
Maximum allowable static pressure
37.5 bar
Maximum allowable fluid temperature
100 °C
Minimum allowable fluid temperature
-15 °C

Sectional Drawings

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