Mechanical seal 4KD KSB

Mechanical seal KSB

Design Double mechanical seal
Type:
Stationary and balanced (inboard)
Dynamic and unbalanced (outboard)
Double pressure balanced
Springs Multi-spring arrangement
Direction of rotation Uni-directional
Additional information:
The double mechanical seal comprises an inboard KSB seal (similar to the 4K type) and an outboard unidirectional single mechanical seal. Various wear part kits available, see ZN3302

Specifications

Barrier fluid pressure
Mechanical seal especially designed for operation at barrier fluid pressure (in this case, a second, outboard seal is required).
Dependable
Stationary design, balanced, multiple springs located outside the fluid handled. The large springs are insensitive to contamination and provide uniform surface pressure across the seal faces, thus ensuring a long service life.
Robust
Tailored to the seal installation space of the pump, suitable for fluids with high solids content.
Safe
In the event of a sudden drop in the barrier fluid pressure, the double pressure balanced design ensures that 4KD’s seal faces will not detach.
Compact
No adjusting dimensions necessary
The space between the two mechanical seals is flushed with a buffer or barrier fluid, depending on the application. This completely absorbs any leakage of the fluid pumped. In addition, the heat is transported away from this area. The double pressure balanced mechanical seal can be operated with pressurised barrier fluid or unpressurised buffer fluid.

Waste water containing stringy material and abrasive particles

Suitable for KSB’s KWP

Other material combinations on request