S738 Tandem Dry Gas Seal for Centrifugal Compressor
S738 Tandem Dry Gas Seal for Centrifugal Compressor
S738 Tandem Dry Gas Seal for Centrifugal Compressor
S738 Tandem Dry Gas Seal for Centrifugal Compressor
S738 Tandem Dry Gas Seal for Centrifugal Compressor
S738 Tandem Dry Gas Seal for Centrifugal Compressor

S738 Tandem Dry Gas Seal for Centrifugal Compressor

Performance
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dry gas seal support systems
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Configuration and Function
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Operating Parameters
● Pressure: ≤25MPa ● Temperature: -160~260℃ ● Shaft Diameter: 25~360mm ● Speed: ≤50000r/min ● Linear Velocity: ≤180m/s The above limit application parameters are not met simultaneously, customized design for particular applications．
Product Description
● Suitable for high pressure, large shaft diameters and demanding applications. ● Non-contact running seal face. ● Two sets tandem frictional pairs, the primary seal is for main seal, the secondary seal is 　for safe seal. ● The surrounding design for seat effectively reduces the damage of equipment which 　caused by broken seat. ● The auxiliary seal uses high-performance polymer seal which has good temperature 　resistance, pressure resistance, and corrosion resistance. ● Both stages of the seal can withstand the full pressure of the medium, and after the 　failure of the main seal, the safety seal can still be operated under the full pressure 　of the medium. ● There is no secondary seal gas (nitrogen) supply, and the primary and the secondary 　seal gas are both process gas and a few process gas in secondary seal leakage will 　leak into the atmosphere. ● Unidirectional grooves and bidirectional grooves are available. ● Cartridge design is easy for installation and dismantling. ● It is suitable for occasions where there is no nitrogen on site and leakage process gas 　needs to be recovered, and it is a structure with relatively high safety and reliability.
Recommended Applications
● LNG Refrigerant Compressor ● Natural Gas Pipeline Compressor
Interface Details
● A　Primary Seal Gas 　　　　 　Process gas/External gas ● B　Primary Leakage Gas 　　　 Vent to flare/Recovery system/Vent to safe location ● C　Secondary Leakage Gas　　 Vent to safe location ● D　Separation Gas 　　　　　 　Nitrogen/Instrument air, nitrogen is preferred
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

Polymer Seal

PTFE

/

Auxiliary Seals

Polymer Seal

PTFE

/

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.

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dry gas seal support systems
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dry gas seal support systems
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Product Description
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Combination Method
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Dry gas seal support systems
Materials and Configurations
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Materials and Configurations
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Materials and Configurations
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Application Device
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Structure and Sealing Principle
Technical Data
Lubrication
Quality Assurance
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Technical Service
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Contact

Email: export@sns-china.com

International sales: +86-028-85373902

Address: No. 8, 4th Wuke West Road, Chengdu City, Sichuan Province，China

Sinoseal Holding Co., Ltd. is a Chinese  listed company and a leader in China’s Fluid Sealing Industry. Sinoseal has transformed its 40 over years of research and development experience into a professional  company  specialized in the production and a provider of overall sealing solutions for its  customers. With our strong technical strength and advance technology and equipment used in manufacturing , Sinoseal’s  products and services enjoy a good reputation across the industries it serves in China.

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Customized products, please contact our sales department for details.

Email: export@sns-china.com