Mechanical seals for pumps

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U7011

Double Pusher Seals

● Pressure:≤3MPa ● Temperature:-40~260°C ● Shaft Diameter: 20~160mm ● Speed: ≤3600r/min ● Sliding Velocity: ≤25m/s

● Suitable for equipment of screen, knotter ● Medium will not leak into the atmosphere side ● Shared spring design, suitable for larger shaft end-play

● Double, multi-springs, stationary structure ● Prevent the hang-up of the springs by placing the springs at the outboard seal ● Dual balance design, able to work under the reverse pressure ● Cartridge design, easy for installation and maintenance

● Pulp and Paper ● Chemical ● Pharmaceutical ● General

● Process side 　　　　　 Piping Plan01,11,32 ● Atmospheric side 　　　Piping Plan54, 55

U7012

Double Pusher Seals

● Pressure:≤2MPa ● Temperature:-20~180°C ● Shaft Diameter:20~120mm ● Speed: ≤3600r/min ● Sliding Velocity: ≤25m/s

● Applied for the stock pump, MC-pump, agitator and refiner equipment ● Medium will not leak into the atmosphere side ● Shared spring design, suitable for larger shaft end-play

● Double, multi-springs, stationary structure ● Prevent the hang-up of the springs by placing the springs atthe outboard seal ● Dual balance design, able to work under the reverse pressure ● Sealing ring float design, secure the sealing face fit tightly

● Pulp and Paper ● Chemical ● Pharmaceutical ● General

● Process side 　　　　　Piping Plan01,11,32 ● Atmospheric side　　　 Piping Plan54, 55

CM1B

Typical Cartridge Single Mechanical Seal

● Pressure: ≤3MPa ● Temperature: -40~260℃ ● Shaft Diameter: 20~200mm ● Speed: ≤3600r/min ● Linear Velocity: ≤25m/s

● Basic solution, recommended choice for common services. ● Average seal size, uniform load on the sealing surface. ● Compensation part is fully pre-installed, easy for installation. ● Dimensions conform to the requirements of API standards pump chamber space.

● Multi-springs ● Rotary type ● Convex lug drive ● Floating throttling ring assembly

● Refining and Petrochemical Industry ● Chemical Industry ● Oil and Gas Industry ● Coal Chemical Industry ● General Industry

● Process Side 　　　　　　API682 PLAN01、11、13、21、23、32 ● Atmospheric Side 　　　　API682 PLAN61、62

CM4B

Single Mechanical Seal with Large Spring

● Pressure: ≤2.5MPa ● Temperature: -40~260℃ ● Shaft Diameter: 20~125mm ● Speed: ≤3600r/min ● Linear Velocity: ≤25m/s

● Large spring structure has strong resistance to clogging and corrosion. ● The compensation parts has a large floating amount and strong adaptability. ● Shifter fork drive, strong ability to transmit torque, unlimited rotation direction. ● Suitable for medium, which containing small amount of particles or easy crystallization.

● Single spring ● Rotary type ● Shifter fork drive ● Floating throttling ring assembly

● Refining and Petrochemical Industry ● Chemical Industry ● Oil and Gas Industry ● Coal Chemical Industry ● General Industry

● Process Side 　　　　　 API682 PLAN11、21、31、32 ● Atmospheric Side 　　　API682 PLAN61、62

Single Arrangement of High-speed Seal

● Restriction ring allows leakage fluid to leak from the vent port. ● Suitable for various chemical fluid medium, high or low-temperature conditions.

● Multi-spring ● Stationary structure ● Simple structure

● Process Side　　　　　PLAN11、13、14、21、32

Tandem Arrangement of High-Speed Seal

● Mechanical seals are used on the process side, with mechanical seals or dry gas seals 　on the secondary side. ● Trace leakage from the medium can vent to flare. ● Suitable for various chemical fluids, high or low-temperature conditions.

● Multi-spring ● Stationary type ● Process side and second-stage seal tandem arrangement

● Process Side 　　　　　PLAN11, 13, 14, 21, 32 ● Secondary Side　　　　PLAN52, 72+75, 72+76

Double Arrangement of High-Speed Seal

● Achieves zero leakage of medium, but there may be trace external sealing liquid or 　internal leakage of sealing gas into the unit. ● Suitable for high-risk medium, high or low-temperature conditions, and occasions where 　the pump chamber can be evacuated.

● Multi-spring ● Stationary type ● Face-to-face arrangement

● Process Side　　　　　PLAN53、54、74

60A-51A

Mechanical Seal

● Used for process side seal. ● Multi-spring, balanced, stationary. ● The compensating element is pre-assembled as a whole, with compact dimensions and 　easy installation. ● The primary ring utilizes shaft sleeve compression drive, facilitating smooth operation 　at high speeds.

● ressure: ≤3MPa ● Temperature: -20~180℃ ● Shaft Diameter: 20~80mm ● Speed: ≤30000r/min

60B-51B

Mechanical Seal

● Used for secondary stage seal. ● Multi-spring, balanced, stationary. ● The compensating element is pre-assembled as a whole, with compact dimensions and 　easy installation. ● The primary ring utilizes shaft sleeve compression drive, facilitating smooth operation at 　high speeds.

● Pressure: ≤3MPa ● Temperature: -20~180℃ ● Shaft Diameter: 20~80mm ● Speed: ≤30000r/min

60C-51D

Mechanical Seal

● Used for seal on the gearbox oil side. ● Multi-spring, balanced, stationary. ● The compensating element is pre-assembled as a whole, with compact dimensions and 　easy installation. ● The primary ring utilizes shaft sleeve compression drive, facilitating smooth operation at 　high speeds.

● Pressure: ≤0.5MPa ● Temperature: -20~180℃ ● Shaft Diameter: 20~80mm ● Speed: ≤30000r/min

B60A-51A

Mechanical Seal

● Stationary metal bellows seal. ● Same installation dimensions as 60A-51A. ● Used for process side seal. ● Suitable for high and low-temperature conditions.

● Pressure: ≤3MPa ● Temperature: -40~260℃ ● Shaft Diameter: 20~80mm ● Speed: ≤30000r/min

B60B-51B

Mechanical Seal

● Stationary metal bellows seal. ● Used for secondary stage seal, with the same installation dimensions as 60B-51B. ● Suitable for high and low-temperature conditions.

● Pressure: ≤3MPa ● Temperature: -40~260℃ ● Shaft Diameter: 20~80mm ● Speed: ≤30000r/min

60A-51C-60B

Mechanical Seal

● Double stationary seal. ● The compensating element is pre-assembled as a whole, facilitating easy installation. ● The primary ring utilizes shaft sleeve compression drive, facilitating smooth operation at 　high speeds. ● Suitable for high-risk medium and can adapt to pump chamber evacuation.

● Pressure: ≤3MPa ● Temperature: -20~180℃ ● Shaft Diameter: 20~80mm ● Speed: ≤30000r/min

B60A-51C-B60B

Mechanical Seal

● Double metal bellows seal. ● Same installation dimensions as 60A-51C-60B. ● Suitable for high-risk medium and can adapt to pump chamber evacuation. ● Suitable for high and low-temperature conditions.

● Pressure: ≤3MPa ● Temperature: -40~260℃ ● Shaft Diameter: 20~80mm ● Speed: ≤30000r/min

CM17G

Dry Gas Seal

● Used for secondary stage seal. ● Single type, non-contact running. ● Multi-spring, balanced, stationary. ● The compensating element is pre-assembled as a whole, facilitating easy installation. ● The primary ring utilizes shaft sleeve compression drive, facilitating smooth operation at 　high speeds.

● Pressure: ≤3MPa ● Temperature: -20~180℃ ● Shaft Diameter: 20~80mm ● Speed: ≤30000r/min

CM17GD

Dry Gas Seal

● Double type, non-contact running. ● The primary ring utilizes shaft sleeve compression drive, facilitating smooth operation at 　high speeds. ● Achieves zero leakage of medium. ● Trace amounts of nitrogen gas may leak into the pump.

● Pressure: ≤3MPa ● Temperature: -20~180℃ ● Shaft Diameter: 20~80mm ● Speed: ≤30000r/min

CM10G

Dry Gas Seal

● Used for sealing on the gearbox oil side. ● Non-contact running. ● Achieves "gas sealing oil," with no external leakage of lubricating oil. ● The primary ring utilizes shaft sleeve compression drive, facilitating smooth operation at 　high speeds.

● Pressure: ≤0.5MPa ● Temperature: -20~180℃ ● Shaft Diameter: 20~80mm ● Speed: ≤30000r/min

CM1B/11B

Tandem Mechanical Seal

● Pressure: ≤3MPa ● Temperature: -40~260℃ ● Shaft Diameter: 20~120mm ● Speed: ≤3600r/min ● Linear Velocity: ≤25m/s

● 2CW-CW dual seal of API682 arrangement 2. ● Secondary seal as the safety seal, the medium does not leak into the atmosphere. ● Widely used in flammable and explosive or toxic and harmful mediums, such as 　aromatics, acidic water, etc.

● Multi-springs ● Rotary type ● Convex lug drive ● Compact size

● Refining and Petrochemical Industry ● Chemical Industry ● Oil and Gas Industry ● Coal Chemical Industry

● Process Side　　　　　API682 PLAN11、13、14、21、23、32 ● Barrier Side 　　　　　API682 PLAN52、55

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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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