Mechanical seal 4STQ

Technical Data Mechanical seal IS4STQ

Operating pressure Up to 10 bar, dynamic
Up to 16 bar, static
Temperature 0 °C to 70 °C
Bearing bracket (seal size)
S01 (022/025), S02 (033/033),
S03 (033/055), S05 (065/065),
S08 (120/120), S09 (150/150)
Business type Engineered/Standard

Brand

KSB

Compact mechanical seal 4stq
Double mechanical seal in tandem arrangement, can be installed as one unit, bi-directional and balanced.
Versatile mechanical seal 4stq
For all operating conditions the pump is approved for.
Dependable mechanical seal 4stq
Stationary design, springs located outside the fluid handled in the oil reservoir. The springs are insensitive to contamination and provide uniform surface pressure across the seal faces, thus ensuring a long service life.
Robust mechanical seal 4stq
Tailored to the seal installation space and pump requirements.
Service-friendly mechanical seal 4stq
The modular design facilitates installation without assembly fixtures or adjusting dimensions, ensuring optimal pre-loading of the mechanical seal and low wear

Technical Description

Technical Description Mechanical seal 4stq

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

Applications

Applications Seal 4stq

contaminated waste water

Materials

Materials Seal 4stq

Inboard Primary and mating ring SiC (Q1)
Outboard
Primary ring: SiC (Q1)
Mating ring: SiC (Q1) / tungsten carbide
(U2)
Elastomers FKM (V)
Springs 2.4610 (M)
Other Components 1.4122 (E)

Benefits

Double mechanical seal in tandem arrangement, can be installed as one unit.

Stationary design, springs located outside the fluid handled in the oil reservoir. The springs are insensitive to contamination and provide uniform surface pressure across the seal faces, thus ensuring a long service life.

The modular design facilitates installation without assembly fixtures or adjusting dimensions, ensuring optimal pre-loading of the mechanical seal and low wear.