Mechanical seal KSB
4STQ
Technical Data Mechanical seal 4STQ
- perating 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 f
Technical Description Mechanical seal 4STQ
- Design Double cartridge seal
- Type Stationary, balanced
- Springs Multi-spring arrangement
- Direction of rotation Bi-directional
Specifications
- Compact
Double mechanical seal in tandem arrangement, can be installed as one unit, bi-directional and balanced. - Versatile
For all operating conditions the pump is approved for. - Dependable
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
Tailored to the seal installation space and pump requirements. - Service-friendly
The modular design facilitates installation without assembly fixtures or adjusting dimensions, ensuring optimal pre-loading of the mechanical seal and low wear.
Applications Seal 4STQ
contaminated waste water
Suitable for pump
Suitable for KSB’s Sewatec, Sewabloc, Amarex KRT
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
Other material combinations on request