4MC Pump-specific cartridge mechanical seal

Pump-specific cartridge mechanical seal 4MC

For the Movitec pump type series. Single, balanced cartridge seal designed for installation in vertical pumps for applications with high pressures and speeds.
Запасні частини

Main Applications

  • Hot water and cooling water recirculation
  • Boiler feed applications

Technical Data

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

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Benefits

  • Single cartridge mechanical seal, stationary design.
  • Designed for installation in vertical pumps for applications with high pressures and speeds.
  • The stationary design ensures that the sealing clearance is positioned closer to the impellers. This lowers the risk of dry running in the event of a gas pocket forming in the seal chamber.

Technical Data

Max allowable axial movem TSG
1.5 mm
Min allowable axial movem TSG
-1.5 mm
Component type series
KSB Movitec [A]
Cartridge seal
Yes
Max allow.dynamic pressure TSG
40 bar
Design Mechanical seal
Stationary
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
FKM,
EPDM
Mtrl Mating ring inboard
A [CARBON, METAL-IMPREGNATED],
B [CARBON, RESIN-IMPREGNATED],
Q1 [SIC, DRUCKLOS GESINTERT]
Mtrl Primary ring inboard
Q1 [SIC, DRUCKLOS GESINTERT]
Dir of rotation Mech seal
Bi-directional
Max allow.sliding speed TSG
8 m/s
Spring design Mechanical seal
Multiple springs,
Single spring
Max allow.static pressure TSG
45 bar
Max allowed fluid temp TSG
200 °C
Min allowed fluid temp TSG
-40 °C

Sectional Drawings

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