• Refinery & Petrochemical industry
  • Oil & gas industry
  • Power plant technology
  • Process pumps
  • Light Hydrocarbons

Type Sever C is balanced single spring pusher- type single cartridge seal, independent of the shaft rotating direction. It is used for general and process industry and oil refining application.

Designed to work in extremely hard working conditions, robust seal face, hard and stable composite material enable extended life time in high pressure, high temperature and abrasive environment. Single coil spring design ensure soft start and avoid blocking of movable parts. Available with or without integrated pumping ring.

Operating range:

  • Shaft diameter: D1 – 25…80mm
  • Pressure: pi = 84 bar
  • Temperature: t = -40°C.. .+260°C
  • Sliding velocity: vg = 23m/s


Easy-to-install single cartridge design
Single springs
Independent of the shaft rotating direction
Integrated pumping ring available


Seal face: Composite, Carbon
Stationary seat: TC, SiC
Secondary seal: NBR, EPDM, FKM, FFKM
Spring: 1.4310, 1.4571
Metal Parts: 316L
Optional materials on request

If you have any questions or concerns about the product, please feel free to call or send us a message.