Mechanical seal 4UM

Technical Data Mechanical seal IS4UM

Operating pressure Up to 20 bar, dynamic
Up to 30 bar, static
Temperature 0 °C to 110 °C
Seal size 056, 057, 066, 076, 100
Business type Standard

Brand

KSB

Compact mechanical seal 4um
Single cartridge seal, bi-directional, tailored to the seal installation space.
Tailored mechanical seal 4um
The spring travel accommodates for the technical requirements of the motor shaft and thrust bearing. Depending on the size, the sleeve of the mechanical seal also houses the connection between coupling and pump, thus keeping the shaft dry.
Service-friendly mechanical seal 4um
No adjusting dimension required for installation. Installation and removal also possible under difficult operating conditions.
Dependable mechanical seal 4um
Stationary design, balanced; the multi-spring arrange-ment provides uniform surface pressure across the seal faces, thus ensuring a long service life.
Versatile mechanical seal 4um
For all operating conditions the submersible motor is approved for

Technical Description

Technical Description Mechanical seal 4UM

Design Single cartridge seal
Type Stationary, balanced
Springs Multi-spring arrangement
Direction of rotation Bi-directional

Applications

Applications Seal 4um

slightly contaminated water, seawater

Materials

Materials Seal 4um

Primary ring SiC (Q1)
Mating ring SiC (Q1) / “A“ carbon (A) / “B” carbon (B)
Elastomers EPDM (E) / FKM (V) / NBR (P)
Springs 2.4610 (M)
Other Components 1.4462 (G1) / 1.4501 (G4)

Benefits

Single, balanced cartridge seal, bi-directional, tailored to the seal installation space of the submersible motor.

No adjusting dimension required. Easy installation and removal also under difficult external conditions.

The permissible spring travel accommodates for the technical requirements of the motor shaft and thrust bearing. Depending on the size, the sleeve of the mechanical seal also houses the connection between coupling and pump, thus keeping the shaft dry.