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NV-1

Description

Multiple springs mechanical seal type NV-1 is mainly used in petrochemical, oil refining and process industries. 
Secondary sealing on a shaft with PTFE wedge or O-ring. 
Seal arrangement allows fast and cheap reparation. 
Mechanical seal type NV-1 is bi rotational.

Working conditions

Face materials:

  • carbon-graphite
  • Cr-steel
  • Cr-Ni steel
  • tungsten carbide
  • silicon carbide
  • alumina

Operating limits:

  • p= 16 bar
  • t= -40 to 220 °C
  • v = 20 m/s