4CPD Pump-specific cartridge mechanical seal

Pump-specific cartridge mechanical seal 4CPD

For the MegaCPK/CPKN pump type series. Double cartridge seal, double pressure balanced, stationary (inboard) and dynamic (outboard) design. The pumping ring of 4CPDF circulates the buffer/barrier fluid effectively.
Запасні частини

Main Applications

  • Chemical industry
  • Petrochemical industry

Technical Data

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

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Benefits

  • The double cartridge seal can be operated with either unpressurised buffer fluid or pressurised barrier fluid.
  • Assembly fixtures ensure optimum pre-loading of the cartridge seal.
  • The mechanical seal cover is centred on the pump cover and confines the gasket.

Technical Data

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

Sectional Drawings

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