5. S737
5. S737-单向槽型
5
5. S737
5. S737-单向槽型
5

S737

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Tandem dry gas seal
Performance Capabilities:

● Pressure:0~10.0MPa

● Temperature:-60~200℃

● Shaft Diameter:25~270mm

● Speed:≦160m/s,for higher speed, special design is required

Features:

√ Dry-running, contact-free operation, no friction

√ Tandem seal arrangement. Primary seal acts as main seal, while secondary seal acts as safety seal

√ Unidirectional or bidirectional available

√ Shrouded mating ring prevents secondary damage in the event of a mating ring fracture

√ Both primary and secondary seals have the capability of full product pressure. In the event of an primary seal failure, the secondary seal acts as an installed spare with full pressure capability

√ No secondary seal gas supply(nitrogen) injection. Process gas has controlled the leakage across both sets of seal faces, and a small amount of process gas will leak from the secondary seal to the atmosphere

√ Cartridge design makes installation and removal easy

√ For applications without nitrogen supply where the process leakage gas needs to be recycled. It's a structure with relatively high safety and reliability

Recommended Applications:

● LNG refrigerant compressors, Natural Gas Pipeline Compressor,etc.

Interface Details:

√ Primary seal gas supply

√ Gas from compressor discharge/ external gas

√ Primary vent:Exhaust torch / recycling system/outdoor safety exhaust

√ Secondary vent:outdoor safety exhaust

√ Separation gas Nitrogen / instrument air, nitrogen preferred

Materials and Configurations

Categories

Descriptions of Components

Standard Materials

Optional Configurations

(Depending on specific working conditions or applications)

Seal rings

Primary ring

SSiC

TC/Si3N4

Mating ring

Carbon graphite

SiC

Elastic elements

Spring

Hast.C

Inconel718

Metal structures

Sleeve

1Cr13/2 Cr13

410/420/17-4PH/2205/316L

Housing

1Cr13/2 Cr13

410/420/17-4PH/2205/316L

Secondary seal

O-ring

FKM

FFKM/NBR/HNBR/FVMQ/EPDM

Auxiliary seal

O-ring

FKM

FFKM/NBR/HNBR/FVMQ/EPDM

 Separation seal

/

Labyrinth seal

Carbon ring seal

 

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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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