PRODUCTS
PRODUCTS
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Mechanical seals for pumps
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Dry gas seals for compressors
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Mechanical seals for agitators
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Special seals
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Seal Auxiliary Systems for Pumps
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Dry Gas Seal Support Systems for Compressors
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Bearing Isolators
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Rotary Jet Pumps
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SIMS
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Sealing Components
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Shield Tunneling Machine Seal
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Seal Manufacturing System
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Materials

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

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
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
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
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
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
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
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
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
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
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
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
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
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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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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