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.

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