PRODUCTS

DS-CRH22

Suitable for GRUNDFOS-PUMP


Mechanical seal “DYNAMICA” model DS-CRH22 is widely used for GRUNDFOS-PUMP. Balanced, cartridge O-ring seal unit with rigid torque transmission system. This seal type is assembled in a cartridge unit which makes replacement safe and easy. The balancing makes this O-ring seal type suitable for high-pressure applications.

The normal material combination include SiC/SiC/Viton/machined SUS.304 and TC/TC/Viton/machined SUS.304. We also can make changes as customers’requirement or totally design a new type of mechanical seal to meet clients’ needs.

These mechanical seals are used for stainless steel vertical multistage centrifugal pumps.
They are suitable for use in Grundfos pumps :

CR32 / CRN32 / CR45 / CRN45 / CR64 / CRN64 / CR90 / CRN90 / 
CR120 / CRN120 / CR150 / CRN150

 


 View Sheet

Operating Limits


  • Pressure : ≤1.0MPa
  • Speed : ≤10m/s
  • Temperature : -30 C ~+ 180 C

 

Standard Materials


  • Rotary Seal Face : Silicon Carbide/Tungsten Carbide
  • Stationary Seal Face : Silicon Carbide/Tungsten Carbide
  • Secondary Seal : NBR/VITON
  • Spring & Other Metal Parts : SUS304/SUS316

 

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