Stock Code:
300470
S727 Double Dry Gas Seal for Centrifugal Compressor
Operating Parameters
● Pressure: ≤4MPa
● Temperature: -60~200℃
● Shaft Diameter: 25~270mm
● Speed: ≤50000r/min
● Linear Velocity: ≤180m/s
The above limit application parameters are not met simultaneously, customized design for particular applications.
Product Description
● Non-contact running seal face.
● Two sets of pairs are arranged back-to-back.
● The surrounding design for seat effectively reduces the damage of equipment which caused by broken
seat.
● Zero leakage of process gas can be realized, and a trace amount of nitrogen will leak into the body into
the process system.
● Unidirectional grooves and bidirectional grooves are available.
● Cartridge design is easy for installation and dismantling.
● It is suitable for low pressure and poor process gas quality, toxic, harmful and corrosive occasions.
Interface Details
● A Buffer Gas Nitrogen/Process gas, nitrogen is preferred
● B Seal Gas Nitrogen/Another inert gas, nitrogen is preferred
● C Leakage Vent to safe location
● D Separation Gas Nitrogen/Instrument air, nitrogen is preferred
Recommended Applications
● Rich Gas Compressor
● Flare Gas Compressor
● De-adsorption Gas Compressor
Materials and Configurations
Categories | Components | Standard Materials | Optional Configurations |
Seal Rings | Seat | SiC | WC、Silicon Nitride |
Face | Carbon Graphite | Silicon Carbide(DLC) | |
Elastic Elements | Spring | Hast.C | Inconel718 |
Metal Parts | Sleeve | 1Cr13、2Cr13 | 17-4PH、2205、316L |
Housing | |||
Secondary Seals | O-Ring | FKM | FFKM、FVMQ |
Auxiliary Seals | O-Ring | FKM | FFKM、FVMQ |
Separation Seal | / | Labyrinth Seal | Carbon Ring Seal |
Determine the best material configuration based on different operating conditions, customer require- ments, execution standards, and application scenarios.