4KSbM6S Seal Ksb
4KSbM6S Seal Ksb

Applications mechanical seal 4ksbm6s

API 682 applications in the chemical and petrochemical industries

Design mechanical seal 4ksbm6s

  • Single cartridge seal

Technical Data mechanical seal 4ksbm6s

  • Pressure: Up to 42 bar
  • Temperature: -10 to 176 °C

Benefits mechanical seal 4ksbm6s

The single cartridge seal can be connected to all common API Plans, such as 01, 02, 11, 31, 32 + 51, 61 (62) and 23 + 51, 61 (62). The seals are available for all of KSB’s API pumps.

The throttling bush enables connection to a gas, steam or liquid quench, depending on the seal variant. This prevents outboard incrustations at the seal.

The API Plan combination 02 + 23 with high-efficiency pumping ring is perfectly matched to applications with hot fluids.

Configurable flange connections

For API Plans 11, 12, 21, 22, 31, 32, 41 + 61 (62) and 23 + 61 (62).

Fixed throttling bush

Optionally floating.

Three strong torque transmitting elements

For transmitting the rotation and for vibration damping.

Seal face material

Combination of hard and soft materials, e.g. silicon carbide and carbon graphite, which is highly resistant to blistering.

Multi-spring arrangement

Made of C276 alloy.

Rotating flexible elements

With O-ring as secondary seal.

Optional cooled gland packing chamber

(Plan 02) and connections for Plan 23 with high-efficiency pumping ring


Material mechanical seal 4ksbm6s

Standard AQ2VMG or AQ2KMG

Other material combinations on request

Technical data mechanical seal 4ksbm6s

Shaft diameter Up to 110 mm
Pressure Up to 42 bar
Temperature -10 to 176 °C
Bearing bracket (seal size) B02 (050), B03 (060), B05 (079), B06 (100)
Sliding velocity Up to 23 m/s