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CM1B

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

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

CM1B/11B

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

CM15/11B

CM15/11B

Tandem Mechanical Seal with Multi-spring
● Pressure: ≤3MPa ● Temperature: -40~260℃ ● Shaft Diameter: 20~120mm ● Speed: ≤3600r/min ● Linear Velocity: ≤25m/s
● 3CW-FB dual seal of API682 arrangement 3. ● Capable of adapting to forward and reverse pressure differential fluctuations and pump 　cavity evacuation. ● Secondary seal as the safety seal, the medium does not leak into the atmosphere. ● Dual seal with containment seal chamber pressure is higher than pump chamber 　pressure, suitable for flammable, explosive or toxic medium with high safety 　requirements.
● Multi-springs ● Rotary type ● Convex lug drive ● Dual balance
● Refining and Petrochemical Industry ● Chemical Industry ● Oil and Gas Industry ● Coal Chemical Industry
● Process Side 　　　　　API682 PLAN11、21、32 ● Barrier Side 　　　　　　API682 PLAN53A、53B、53C、54

CM1B/11G

CM1B/11G

Tandem Dry Gas Seal for Pump
● Pressure: ≤3MPa ● Temperature: -40~260℃ ● Shaft Diameter: 20~120mm ● Speed: ≤3600r/min ● Linear Velocity: ≤25m/s
● 2CW-CS dual seal of API682 arrangement 2. ● The mechanical seal and the dry gas seal are arranged in series. It is more suitable for 　easily vaporized medium. ● Secondary seal as containment seal, the medium does not leak into the atmosphere. ● Nitrogen is used as buffer gas for safety and environmental protection. ● This type of seal can be used in light hydrocarbons, aromatics, liquid ammonia and 　other medium.
● 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、21、32 ● Barrier Side 　　　　　 API682 PLAN72、75、76

CM1BD

CM1BD

Back-to-back Mechanical Seal with Multi-spring
● Pressure: ≤3MPa ● Temperature: -40~260℃ ● Shaft Diameter: 20~120mm ● Speed: ≤3600r/min ● Linear Velocity: ≤25m/s
● 3CW-BB dual seal of API682 arrangement 3. ● Capable of adapting to pump cavity evacuation. ● Dual seal with containment seal chamber pressure is higher than pump chamber pressure, the medium does not leak into the atmosphere. ● This type of the seal is suitable for flammable, explosive, toxic particulate impurity or high viscosity mediums.
● 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 PLAN01、11、21、32 ● Barrier Side 　　　　　 API682 PLAN53A、53B、53C

CM15B//19B

CM15B//19B

Back-to-back High Pressure Seal with Multi-spring
● Pressure: ≤6MPa ● Temperature: -40~260℃ ● Shaft Diameter: 20~120mm ● Speed: ≤3600r/min ● Linear Velocity: ≤25m/s
● 3CW-BB dual seal of API682 arrangement 3. ● Capable of working under the forward or reverse pressure differential fluctuations and pump cavity evacuation. ● Dual seal with containment seal chamber pressure is higher than pump chamber pressure, the medium does not leak into the atmosphere. ● Suitable for high pressure flammable, explosive or toxic mediums with high safety requirements. ● Typical applications in oil refining hydrogenation unit heat high oil hydraulic turbine, desulfurization unit rich amine turbine.
● Multi-springs ● Rotary type ● Convex lug drive ● Dual balance+high pressure seal
● Refining and Petrochemical Industry ● Chemical Industry ● Oil and Gas Industry ● Coal Chemical Industry
● Process Side 　　　　　API682 PLAN 01、11、21、32 ● Barrier Side 　　　　　API682 PLAN 53A、53B、53C

CM19B

CM19B

Single Mechanical Seal for High Pressure Pump
● Pressure: ≤6MPa ● Temperature: -40~260℃ ● Shaft Diameter: 20~120mm ● Speed: ≤3600r/min ● Linear Velocity: ≤25m/s
● Derivative structure of CM1B, suitable for high-pressure chemical fluid conditions under 3~6MPa. ● The Primary ring is specially designed to increase the heat dissipation area and reduce the deformation of the sealing face. ● Compact structure for sealing, dimensions conform to the requirements of API standards pump chamber space.
● Multi-springs ● Rotary type ● Convex lug drive ● High pressure resistant design for primary ring and mating ring
● Refining and Petrochemical Industry ● Chemical Industry ● Oil and Gas Industry ● Coal Chemical Industry ● General Industry
● Process Side 　　　　　API682 PLAN 11、13、21、23、32 ● Barrier Side 　　　　　API682 PLAN 61、62

CM19B/11B

CM19B/11B

Tandem Mechanical Seal with Multi-spring
● Pressure: ≤6MPa ● Temperature: -40~260℃ ● Shaft Diameter: 20~120mm ● Speed: ≤3600r/min ● Linear Velocity: ≤25m/s
● 2CW-CW dual seal of API682 arrangement 2. ● The inner side adopts high-pressure sealing, the entire seal size is compact. ● The medium does not leak into the atmosphere. Usually, small inner leakage should be 　discharged into the flare system. ● This type of seal is suitable for mediums under high pressure conditions, such as light 　hydrocarbons, aromatics, ethene, propylene etc.
● Multi-springs ● Rotary type ● Convex lug drive ● High pressure seal in Process side
● Refining and Petrochemical Industry ● Chemical Industry ● Oil and Gas Industry ● Coal Chemical Industry
● Process Side 　　　　　API682 PLAN 11、13、14、21、32 ● Barrier Side 　　　　　 API682 PLAN 52、55

CMB21 Z8810

CMB21 Z8810

Rotary Metal Bellows Single Seal
● Pressure: ≤2.5MPa ● Temperature: -120~400℃ ● Shaft Diameter: 20~120mm ● Speed: ≤3600r/min ● Linear Velocity: ≤25m/s
● Standardized manufacturing process of bellows with high strength and fatigue 　resistance. ● Good follow ability(Goodmatching property), strong anti-interference ability. ● The rotating metal bellows prevent medium particles from depositing between the 　plates, achieving self-cleaning properties. ● This type of the seal can be used in low temperature or high temperature condition.
● Metal bellows rotary type ● Integral press-mounted non-compensating ring ● The auxiliary seal is flexible graphite ● Floating throttling ring assembly
● Refining and Petrochemical Industry ● Chemical Industry ● Oil and Gas Industry ● Coal Chemical Industry
● Process Side　　　　　API682 PLAN 01、11、21、23、32 ● Barrier Side 　　　　　API682 PLAN 61、62

CMB21/B21 Z8820 Z8830

CMB21/B21 Z8820 Z8830

Rotary Metal Bellows Tandem Seal
● Pressure: ≤2.5MPa ● Temperature: -120~400℃ ● Shaft Diameter: 20~120mm ● Speed: ≤3600r/min ● Linear Velocity: ≤25m/s
● 2CW-CW dual seal of API682 arrangement 2 or 3CW-FB dual seal of API682 　arrangement 3. ● Secondary seal as the safety seal, the medium does not leak into the atmosphere. ● The rotating metal bellows prevent medium particles from depositing between the 　plates, achieving self-cleaning properties. ● This type of the seal is suitable for low temperature or high temperature working 　condition with higher safety requirements.
● Metal bellows rotary type ● Integral press-mounted non-compensating ring ● The auxiliary seal is flexible graphite
● Refining and Petrochemical Industry ● Chemical Industry ● Coal Chemical Industry
● Process Side 　　　　　API682 PLAN 11、13、14、21、23、32 ● Barrier Side 　　　　　API682 PLAN 52、53A、53B、53C、55 ● Atmospheric Side　　　　　API682 PLAN 61、62

CMB21D Z8831

CMB21D Z8831

Rotary Metal Bellows Double Seal
● Pressure: ≤2.5MPa ● Temperature: -120~400℃ ● Shaft Diameter: 20~120mm ● Speed: ≤3600r/min ● Linear Velocity: ≤25m/s
● A 3CW-BB dual seal of API682 arrangement 3. ● Dual double seal with pressure, the medium will not leak to the atmosphere. ● The seal has short axial dimension, It can be adapted to pump chamber evacuation. ● It is suitable for low or high temperature.
● Rotating bellows ● Integral press-mounted non-compensating ring ● Compact size ● Auxiliary seal is flexible graphite
● Refining and Petrochemical Industry ● Chemical Industry ● Coal Chemical Industry
● Process Side API682 PLAN 01、21、32 ● Barrier Side API682 PLAN 53A、53B、53C、54 ● Atmospheric SideAPI682 PLAN 61、62

CMB54

CMB54

Static Metal Bellows Single Seal
● Pressure: ≤2.5MPa ● Temperature: -120~400℃ ● Shaft Diameter: 20~120mm ● Speed: ≤3600r/min ● Linear Velocity: ≤50m/s
● Standard manufacturing process of bellows, it is high-strength and fatigue-resistant. ● Uncompensated ring has been designed specially, it can avoid pressure deformation. ● The static structure is suitable for condition of large shaft diameter or high speed. ● It is suitable for conventional low and high temperature condition. Add steam at high 　temperature condition for preventing coking at the end of the face. Add nitrogen at low temperature condition for preventing freezing.
● Static bellows ● Uncompensated ring with special structure ● Seal ring is flexible graphite ● Standard throttle sleeve
● Refining and Petrochemical Industry ● Chemical Industry ● Coal Chemical Industry ● General Industry
● Process Side 　　　　　API682 PLAN 01、02、11、21、32 ● Atmospheric Side　　　　　API682 PLAN 61、62

CMB54B/54F

CMB54B/54F

Stationary tandem metal bellow seals
● Pressure：0~3.0 MPa ● Temperature：-120~400℃ ● Speed：≤50m/s
√ Tandem metal bellow seals applied for cryogenic and high temperature services √ Stationary designs well fitted for large shaft and high speed application √ Prevent medium leaking into the atmospheric √ Standardized bellows manufacturing process with high strength and fatigue resistance;
● Welded metal bellows, stationary ● Shrink fitted seal face ● Flexible graphite as secondary seal
√ Refining & petrochemical √ Coal chemical √ Tower bottom pumps √ Radiation feed pumps √ Slurry pumps
● Process side:API682 PLAN 21, 32 ● Between seals:API682 PLAN 52, 53A, 53B, 53C, 54 ● Atmospheric side:API682 PLAN 61, 62

CMB54D

CMB54D

Stationary Face-to-face metal bellow seals
● Pressure：0~3.0 MPa ● Temperature： -120~400℃ ● Speed：≤50m/s
√ Face to face, compact structure √ Stationary designs well fitted for large shaft and high speed application √ Suitable for pump housing evacuation √ Prevent media leaking into the atmospheric √ Standardized bellows manufacturing process with high strength and fatigue resistance;
● Welded metal bellows, stationary ● Shrink fitted seal face ● Flexible graphite as secondary seal
√ Refining & petrochemical √ Coal chemical √ Radiation feed pumps √ Slurry pumps √ Hydraulic recycle turbines
● Process side:API682 PLAN 02, 21, 32 ● Between seals:API682 PLAN 53A, 53B, 53C, 54 ● Atmospheric side:API682 PLAN 61, 62

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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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