4KDC Pump-specific cartridge mechanical seal

Pump-specific cartridge mechanical seal 4KDC

For the KWP pump type series. Double cartridge seal in double balanced, stationary design.
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Main Applications

  • Waste water containing stringy material and abrasive particles

Technical Data

Cartridge seal
Yes
Design Mechanical seal
Stationary
Mechanical seal type
Balanced double mechanical sea
Sealing type Mechanical seal
Double
Max allowed fluid temp TSG
200 °C

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Benefits

  • This double cartridge seal includes the shaft protecting sleeve for the pump and can be fitted without adjusting dimension.
  • The pumping ring circulates the buffer/barrier fluid effectively. The circulation ensures optimum heat dissipation in the space between the two seals and thus increases the service life.
  • The double mechanical seal's cartridge can be operated with either unpressurised buffer fluid or pressurised barrier fluid. In the event of a sudden barrier fluid pressure failure, the double pressure balanced design ensures that 4KDC's seal faces will not open.

Technical Data

Max allowable axial movem TSG
1.5 mm
Min allowable axial movem TSG
-1.5 mm
Component type series
KSB KWP-NC [A]
Cartridge seal
Yes
Max allow.dynamic pressure TSG
16 bar
Design Mechanical seal
Stationary
Mechanical seal type
Balanced double mechanical sea
Sealing type Mechanical seal
Double
Mtrl metallic compon.mech.seal
1.4571,
1.4539,
1.4462
Mtrl mech.seal spring
1.4571
Mtrl Secondary seal outboard
FKM,
EPDM,
FFKM
Mtrl Secondary seal inboard
FKM,
EPDM,
FFKM
Mtrl Mating ring outboard
Q1 [SIC, DRUCKLOS GESINTERT]
Mtrl Mating ring inboard
Q1 [SIC, DRUCKLOS GESINTERT]
Mtrl Primary ring outboard
B [CARBON, RESIN-IMPREGNATED]
Mtrl Primary ring inboard
Q1 [SIC, DRUCKLOS GESINTERT]
Dir of rotation Mech seal
Clockwise rotation
Max allow.sliding speed TSG
20 m/s
Spring design Mechanical seal
Multiple springs
Max allow.static pressure TSG
24 bar
Max allowed fluid temp TSG
200 °C
Min allowed fluid temp TSG
-40 °C

Sectional Drawings

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