DF-SA DiamondFace
DF-SA DiamondFace

Features seal df-sa diamondface

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

Advantages seal df-sa diamondface

  • 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.
dimensions-df-sa-diamondface

Operating range seal df-sa diamondface

  • 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 df-sa diamondface

  • Seal face: Composite carbon
  • Seat: SiC DiamondFace coated
  • Secondary seals: EPDM (E), FFKM (K)
  • Springs: CrNiMo steel (G)
  • Metal parts: CrNiMo steel (G)
ItemDescription
1Seal ring
2O-Ring
3Spring
4O-Ring
5Seat collar
6Mating ring (DiamondFace coated)
7Shaft sleeve
8Pumping sleeve
9Cover

Recommended applications mechanical seal df-sa diamondface

  • Power plant technology
  • Boiler feed pumps