DF-SA DiamondFace
DF-SA DiamondFace
| 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.
Materials
Seal face: Composite carbon
Seat: SiC DiamondFace coated
Secondary seals: EPDM (E), FFKM (K)
Springs: CrNiMo steel (G)
Metal parts: CrNiMo steel (G)
Seat: SiC DiamondFace coated
Secondary seals: EPDM (E), FFKM (K)
Springs: CrNiMo steel (G)
Metal parts: CrNiMo steel (G)
Recommended applications
- Power plant technology
- Power generation
- Boiler feed pumps
Recommended piping plans
API Plan 02 + 23 (with jacket cooling)
Similar products
DF-(P)DGS6
- Dry gas seal for multiphase pump applications
- DiamondFace sliding surface technology
- Ideal for applications with Ethane, CO2, and similar media with low vapor margins
- Shrouded rotating ring
- Bi-directional
- Ready-to-fit cartridge unit
- Single, double, tandem, and tandem with intermediate labyrinth available
HR
- Single seal
- Balanced
- Independent of direction of rotation
- Multiple springs stationary
- Seat rotating
- Seat arranged directly behind the impeller
- Spring protection sleeve
- Variant with cylindrical spring and acc. EN 12756 (HRZ1) available
- Variant as cartridge with/without guide sleeve for application with/without quench (HR2, HR3)
- Dual seal as cartridge unit (HRKS-D) available
HRC...N
- Cartridge
- Balanced
- Independent of direction of rotation
- Stationary multiple springs
- Spring protection sleeve
- Variant for operation with pressureless quench available (HRC2000N)
- Dual seal with and without pumping screw (HRC3300NF, HRC3300N) available