4RD Seal KSB
4RD Seal KSB

Applications mechanical seal 4rd

  • raw water
  • clean water
  • service wate

Design mechanical seal 4rd

  • Single mechanical seal

Technical Data mechanical seal 4rd

  • Operating pressure:
    Up to 25 bar, dynamic
    Up to 37.5 bar, static
  • Temperature: 0 °C to 140 °C

Benefits mechanical seal 4rd

Dynamic type, multi-spring arrangement, bi-directional and balanced. Sturdy and practical seal design.

The primary ring is shrink-fitted into the metal primary ring carrier. This ensures even contact, also under fluctuating pressure and temperature conditions.

Together with the shaft protecting sleeve and the seal cover of the pump, the mechanical seal can be installed like a cartridge.

Dependable mechanical seal 4rd

Dynamic type, multi-spring arrangement, bi-directional and balanced. Sturdy and practical seal design.

Robust mechanical seal 4rd

The primary ring is shrink-fitted into the metal primary ring carrier. This ensures even contact, also under fluctuating pressure and temperature conditions.

Different material variants mechanical seal 4rd

Elastomers made of EPDM also available with WRAS approval. Metal parts available in super duplex stainless steel (1.4501) for seawater applications.

Service-friendly mechanical seal 4rd

Easy to install, no adjusting dimension required.
Together with the shaft protecting sleeve and the seal cover, the mechanical seal can be installed like a cartridge.

Compact mechanical seal 4rd

The primary ring is kept in position in the torque-transmitting element for transport and installation.

4rd-ksb

Material seal 4rd

Primary ring SiC (Q1)
Mating ring SiC (Q1) / “A“ carbon (A) / “B“ carbon (B)
Elastomers EPDM (E) / FKM (V)
Springs 2.4610 (M)
Other Components 1.4571 (G) / 1.4501 (G4)

Other material combinations on request

Technical data mechanical seal 4rd

Operating pressure Up to 25 bar, dynamic
Up to 37.5 bar, static
Temperature 0 °C to 140 °C
Shaft unit  (seal size)
110 (125), 125 (135),
140 (155), 160 (175)
Business type Standard (KSB EasySelect)