4STQ-Seal-ksb
4STQ-Seal-ksb

Applications mechanical seal 4stq

contaminated waste water

Design mechanical seal 4stq

  • Double cartridge seal

Technical Data mechanical seal 4stq

  • Operating pressure:
    Up to 10 bar, dynamic
    Up to 16 bar, static
  • Temperature: 0 °C to 70 °C

Benefits mechanical seal 4stq

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.

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

4stq-ksb

Material 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)

Other material combinations on request

Technical data mechanical seal 4stq

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 (KSB EasySelect)*

* Only for seal sizes 022/025, 033/033, 033/055

** It should always be checked if the seal size is compatible with the relevant bearing bracket or locating fit.