DF-SA DiamondFace

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DF-SA DiamondFace

DF-SA DiamondFace
Request product
Item Description
1 Seal ring
2 O-Ring
3 Spring
4 O-Ring
5 Seat collar
6 Mating ring (DiamondFace coated)
7 Shaft sleeve
8 Pumping sleeve
9 Cover

DF-SA DiamondFace

Features

  • Cartridge design
  • Single seal
  • Balanced
  • Integrated pumping device
  • Stationary spring loaded unit
  • Inserted seal ring
  • Rotating mating ring
    (DiamondFace coated)

Advantages

  • Resistant to electrochemical corrosion.
  • Extremely long service life (>40,000 h).
  • No dosing system, no cooling circuit conditioning required.
  • Diamond coating provides very low friction, thus reduced power consumption.
  • Deformation-optimized for high sliding velocities and medium pressures.
  • Economical due to standardized components.
  • High flexibility due to adaptation of the connection parts to the pump seal chamber.
  • Optimum heat dissipation due to integrated pumping device and optimized seat / seal face design.

Operating range

Shaft diameter:
d1* = 120 ... 250 mm (4.72" ... 9.84")
Pressure: p1 = 70 bar (1,015 PSI)
Temperature: t = 300 °C (572 °F)
Sliding velocity: vg = 70 m/s (330 ft/s)
Axial movement: ±3 mm

* Other sizes on request

Materials

Seal face: Composite carbon
Seat: SiC DiamondFace coated
Secondary seals: EPDM (E), FFKM (K)
Springs: CrNiMo steel (G)
Metal parts: CrNiMo steel (G)

Recommended piping plans

API Plan 02 + 23 (with jacket cooling)

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The Eagleburgmann Group

Sealing technology for plants and machines

EagleBurgmann is one of the worldwide leading providers of industrial sealing technology. Mechanical seals, seal supply systems, magnetic couplings, carbon floating ring seals, expansion joints, gaskets and packings as well as comprehensive services are used wherever reliability and safety are needed.

Mechanical seals and more

Sealing technology by EagleBurgmann is used worldwide in oil and gas industries, refineries, the petrochemical, chemical, and pharmaceutical industries, food processing, energy, water, mining, paper, aerospace, and other industries. Close to 5,800 employees provide their ideas, solutions, and commitment so that customers can rely on our sealing technology.

What makes us stand out is our excellent quality, great innovative capacity, and an extensive product portfolio for nearly all industrial processes and fields of application. Our product portfolio includes everything from mechanical seals and seal supply systems to magnetic couplings, carbon floating ring seals, expansion joints, and gaskets and packings as well as comprehensive services. Since we are part of the German Freudenberg and Japanese EKK group, we have all the necessary resources for a firmly based reliable partnership.

EagleBurgmann WORLDWIDE