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.

Performance