4WS Pump-specific cartridge mechanical seal

Pump-specific cartridge mechanical seal 4WS

For the WKT, WK, WL, WKS pump types series. Single balanced cartridge seal, dynamic design.
Запасні частини
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Main Applications

  • Handling condensate in power stations

Technical Data

Cartridge seal
Yes
Design Mechanical seal
Dynamic
Mechanical seal type
Balanced mechanical seal
Sealing type Mechanical seal
Single
Max allowed fluid temp TSG
220 °C

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Benefits

  • The balanced cartridge seal 4WS is available with a throttling bush for connection of a gas or steam quench as standard.
  • Suitable for suction pressures up to -1 bar.
  • High temperatures are accommodated by the 4WSC seal with cooled mating ring. A variant with pumping ring for Plan 23 is also available.

Technical Data

Max allowable axial movem TSG
2.5 mm
Min allowable axial movem TSG
-2.5 mm
Component type series
KSB WKT [A]
Cartridge seal
Yes
Max allow.dynamic pressure TSG
40 bar
Design Mechanical seal
Dynamic
Mechanical seal type
Balanced mechanical seal
Sealing type Mechanical seal
Single
Mtrl metallic compon.mech.seal
1.4571
Mtrl mech.seal spring
1.4571
Mtrl Secondary seal inboard
EPDM
Mtrl Mating ring inboard
Q1 [SIC, DRUCKLOS GESINTERT]
Mtrl Primary ring inboard
A [CARBON, METAL-IMPREGNATED]
Dir of rotation Mech seal
Bi-directional
Max allow.sliding speed TSG
20 m/s
Spring design Mechanical seal
Multiple springs
Max allow.static pressure TSG
60 bar
Max allowed fluid temp TSG
220 °C
Min allowed fluid temp TSG
-50 °C

Sectional Drawings

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