| 1 | Primary seal face with DF-coating*, stationary |
| 2 | Primary seat with DF-coating*, rotating |
| 3 | Thrust ring |
| 4 | Spring |
| 5 | Shaft sleeve and seat retainer |
| 6 | Intermediate sleeve |
| 7 | Housing (adapted in size to the installation space) |
| 8 | "Adjustable" nut for axial misalignment |
| 9 | Split ring |
| 10 | Clamping ring |
| 11 | Cover |
| 12 | Process side labyrinth |
| GBI | Gas Buffer Inlet |
| GBO | Gas Buffer Outlet |
| D | Drain |
| * | Optional: secondary seal face and seat also with DF-coating. |
Advantages Seal df-(p)dgs6
- Significantly lower leakage rate compared to competition
- Longer life span
- Wear and contact free operation
- Self-cleaning 3-D gas grooves
- High gas film stiffness
- Proven, reliable and economical solution
- Can be adjusted even to extreme narrow installation space - retrofits are easy to implement
Features
- DiamondFace bonded primary seal faces
- Safe cupped retainer for rotating ring
- Bi-directional
- Ready-to-fit cartridge unit
- Single, double, tandem and tandem seal with intermediate labyrinth arrangement available
- An ideal solution for Ethane, CO2 and many other low vapor margin applications
- This type of seals can handle both liquid and gaseous phases during the operation of the pump
Materials
- Primary seat and seal face: Silicon carbide with DiamondFace bonding
- Secondary seat and seal face: Silicon carbide with DLC coating. Optional also with DF-coating
- Secondary seals: FKM, PTFE (DF-PDGS6) or other elastomers, depending on product gas composition
- Metal parts: 1.4006 (410) and other stainless steels
Recommended applications
- Oil and gas industry
- Refining technology
- Petrochemical industry
- Hydrocarbon applications
- CO2 applications
