Features
- Robust seal design – suitable for demanding light hydrocarbon applications
- Compact cartridge seal – can be fitted in older pumps with small seal chambers
- Unpressurized inboard seal with a high pressure-non contacting containment seal on the outboard – fully-rated to pipeline pressure
- Stationary spring loaded unit
- Balanced primary seal faces – in materials with high thermal conductivity and strength
- Multi-point injection – uniform heat distribution
- DiamondFace® technology optional
Advantages
Operational Excellence
- High Performance seal for single and multi fluid type pipeline services with variable pressures and speeds
- Low amount of heat generation, hence minimal temperature rise in the seal faces
- Suitable for flashing and non-flashing light hydrocarbons, even with low vapor pressure margins
- Seal faces have soft torque transmission
- Seal faces are shrouded in steel collars so that they cannot break apart in pieces in an emergency case
- Resistant to alignment issues between the pump case and shaft because of stationary springs
- Containment seal is rated for full dynamic pressure of primary seal, i.e. high degree of safety and environmental protection
- Seal face materials are resistant to solids in the pumped fluid
Technical Excellence
- Simple installation due to pre-assembled cartridge
- Seal faces are designed with FEA & CFD and qualified & tested in the lab
- Can be fitted in older pumps with small seal chambers or stuffing boxes
- High degree of standardization ensures fast deliveries and smart part inventories
Sustainability Excellence
- Zero emission seal design for sustainable environmental protection in combination with plan 75 or plan 76
- Minimized friction and energy consumption
Operating range
Shaft diameter:
d1* = 50 … 138 mm (1.97″ … 5.43″)
Pressure: p1 = 100 bar (1,450 PSI),
Static = up to 150 bar (2,175 PSI),
Dynamic = 5 … 100 bar (72,5 … 1,450 PSI)
Temperature: t = -20 … +150 °C (-4 … 302 °F)
Sliding velocity: vg = 50 m/s (164 ft/s)
Axial movement: ±1,5 mm
* Additional sizes upon request
Materials
Seal face:
Silicon impregnated carbon (Q3), DiamondFace
Stationary seat: Silicon carbide (Q2), DiamondFace
Secondary seals: FKM (V), FFKM (K)
Springs: Hastelloy® C-4 (M)
Metal parts: CrNiMo steel (G), Duplex (G1), Super Duplex (G4), Titan (T2), Hastelloy® C-4 (M)