Sichuan MONOEL SEAL is one of the leading Chinese manufacturers in design, produce, and sale of dynamic sealing products such as mechanical seals, dry gas seals, carbon ring seals,Seal support systems, and marine seals, since we were established in 1976. MOR Seal is our brand. Over the years, with high-quality products, punctual delivery, and good service, we have more 1000 customers, 50000 items.
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![MOR BQFDR cartridge mechanical seal]()
MOR BQFDR cartridge mechanical sealShaft Diameter: 24 mm – 100 mm (1.000” – 4.000”)Working Pressure: Up to 2.5 MPaWorking Temperature: -40 °C ~ +300 °C (dependent on elastomer)Rotating Speed: Up to 25 m/sTemperature: 0～200°C. -
![MOR 604 High Temperature Metal Bellow Mechanical Seal]()
MOR 604 High Temperature Metal Bellow Mechanical SealSize: 25–100 mm (custom sizes available). Pressure: 0–2.5 MPa (higher on request). linear velocity: ≤20m/s. Temperature: −50 °C to +425 °C (depends on bellows material). -
![Equivalent To MFL85N Metal Bellow Mechanical Seal]()
Equivalent To MFL85N Metal Bellow Mechanical SealSize: 16-100mm. Pressure:- 0.1 ~ 2.5 MPa. linear velocity: ≤20m/s. Temperature: - 40 ~ 220 ºC. Mediums: hot water, oil, liquid hydrocarbon, acid, alkali, solvents, paper pulp and other -
![MOR MFL95N Metal Bellow Mechanical Seal]()
MOR MFL95N Metal Bellow Mechanical SealSize: 14 mm to 100 mm. Pressure: ≤1.6Mpa. linear velocity: ≤20m/s. Temperature: -40°C to +220°C. -
![MOR 102 Booster Pump Metal Bellow Mechanical Seal]()
MOR 102 Booster Pump Metal Bellow Mechanical SealSize: 16-100mm. Pressure:- 0.1 ~ 2.5 MPa. linear velocity: ≤15m/s. Temperature: - 40 ~ 200 ºC. Mediums: hot water, oil, liquid hydrocarbon, acid, alkali, solvents, paper pulp and other -
![Equivalent to Flowserve Durametallic X-200 Metal Bellows Mechanical Seal]()
Equivalent to Flowserve Durametallic X-200 Metal Bellows Mechanical SealSize: 25 mm – 150 mm (1 – 6). Pressure:Up to 41 bar (600 psi) (single seal); up to 27 bar (400 psi) (dual seal). linear velocity: ≤30m/s. Temperature: -200°C to +425°C (-328°F to +800°F) -
![MOR BXHHB BXH API mechanical seal]()
MOR BXHHB BXH API mechanical sealSize: 21.8-127mm. Temperature: -73°C- 427°C. Pressure: ≤20.7 bar. Speed: ≤25 mps. -
![MOR MFLWT 80 Rotating Mechanical Seal]()
MOR MFLWT 80 Rotating Mechanical SealSize: 38~127mm(custom sizes available). Pressure: ≤25bar. linear velocity: ≤20m/s. Temperature: −50 °C to +425 °C (material-dependent). -
![MOR LBG Cartridge Metal Bellow Seal]()
MOR LBG Cartridge Metal Bellow SealSize: 25~100mm. Pressure: ≤2.5MPa. Linear velocity: ≤6000r/m. Temperature: -70°C to 400°CThis seal is mainly used for coal-fired power generation boiler feed water pump. -
![MOR EBU metal bellow mechanical seal]()
MOR EBU metal bellow mechanical sealSize: 25 mm – 100 mm (1 – 4). Pressure: ≤25bar. linear velocity: ≤50m/s. Temperature: -40°C to +425°C (-40°F to +800°F) (material‑dependent). -
![MOR 609 bellows shaft seal]()
MOR 609 bellows shaft sealSize: 25–100 mm (custom sizes available). Pressure: 0-2.5MPa. linear velocity: ≤20m/s. Temperature: −50 °C to +425 °C (material‑dependent).
Why Choose Us
Rich Experience
Our General manager is the Chinese dry gas seals standard-setter, a professor-level senior engineer in sealing industry, who has been engaged in sealing product research and development for more than 30 years. He and our company obtained 36 world patents.
OEM/ODM
We focus on mid-high-end and customized products to meet customers' different demands, OEM and ODM are both acceptable.Major partners inboard include over 100 large chemical production enterprises such as China Petroleum & Chemical Corporation, China National Petroleum Corporation, and China National Offshore Oil Corporation.
Production Market
Since 2014, we started to export, Our abroad customers are mainly from Germany, Italy, USA, Australia, Malaysia, Singapore, Indonesia, etc. We have extensive hands-on experience in sealing technology and numerous successful application cases both domestically and internationally.
Full Service
For modified seals, we provide full tracking service, from original data collection, seal design, manufacturing, all of which are handled by dedicated personnel. Our company sends professionals to the site for installation and commissioning until the start-up is successful;For maintenance, our company can send professionals to the site to dismantle the seals to reduce accidental marine losses.
Advantages of Metal Bellow Seal
High Durability and Reliability
Metal bellows are constructed from durable materials like stainless steel or alloys such as Hastelloy and Inconel. These materials are resistant to corrosion, wear, and fatigue, which enhances the overall durability and reliability of the seals. This makes them ideal for long-term use in harsh environments.
Wide Temperature Range
Metal bellow mechanical seals can operate effectively across a broad temperature range, from cryogenic temperatures to several hundred degrees Celsius. This capability is crucial for applications in industries like aerospace, refrigeration, and high-temperature processing.
Resistance to Corrosive Fluids
The materials used in metal bellows seals are typically resistant to a wide range of chemicals and corrosive fluids. This makes them suitable for use in chemical processing, petrochemical industries, and other sectors where aggressive fluids are handled.
No Springs to Clog or Fail
Unlike traditional mechanical seals that use springs for tension, metal bellows seals use the elastic properties of the bellows. This design eliminates problems associated with clogging of springs due to solid particles or viscous fluids, and there is no risk of spring failure due to corrosion or metal fatigue.
Compensation for Misalignment and End Play
The flexible nature of the bellows allows the seal to compensate for shaft misalignment, end play, and other dynamic movements without losing sealing integrity. This reduces the mechanical stress and wear on both the seal and the machinery.
Low Leakage Rates
Metal bellows seals provide superior sealing performance, which results in very low leakage rates. This is particularly important in applications involving hazardous or expensive materials where containment is critical.
Minimal Maintenance Required
Because of their robust construction and the absence of components like springs that require regular maintenance, metal bellows seals generally require less upkeep. This lowers maintenance costs and reduces downtime in industrial processes.
Versatility
They can be designed and customized to meet specific requirements of different applications, such as varying pressures, fluid types, and environmental conditions, adding to their versatility across industries.
Application of Metal Bellow Seal
Pumps: Metal bellow seals are commonly used in centrifugal pumps, positive displacement pumps, and cryogenic pumps to prevent leakage of liquids or gases.
Compressors: In compressor applications, metal bellow seals are used to seal high-pressure gases and prevent contamination of the compressed media.
Mixers And Agitators: Metal bellow seals are employed in mixing and agitation equipment to contain process fluids and prevent shaft leakage.
Refineries And Petrochemical Plants: In the oil and gas industry, metal bellow seals are used in pumps, compressors, and other rotating equipment to handle hydrocarbons, solvents, and other aggressive fluids.
Chemical Processing: Metal bellow seals are utilized in chemical manufacturing plants to seal pumps and other equipment handling corrosive or toxic chemicals.
Power Generation: In power plants, metal bellow seals are used in boiler feed pumps, circulating water pumps, and other critical equipment to ensure reliable operation and prevent leakage.
Pharmaceutical And Food Processing: Metal bellow seals are employed in hygienic and aseptic applications to maintain product purity and prevent contamination.
Parameters
|
Product name |
Metal Bellow Seal |
|
Materials |
According to customer's demands |
|
Size |
25-100mm |
|
Temperature |
-75~425 ℃ |
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Pressure |
≤6.9MPa |
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Linear velocity |
≤25m/s |
|
Service |
OEM Customized Services |
Components of Metal Bellow Seal
Bellows: The bellows forms the heart of the seal and is responsible for accommodating movements and maintaining a seal between the stationary and rotating faces. It is manufactured using a precise process to ensure flexibility, strength, and resilience. Bellows designs can vary based on the application requirements, with options like single-ply, multiply, and formed convolution designs.
Seal Faces: The stationary and rotating seal faces are the primary points of contact responsible for creating a seal. These faces are typically made from materials with high wear resistance, such as carbon-graphite or ceramic, to ensure longevity and minimize friction. The choice of seal face materials depends on the application and the fluid being sealed.
Spring and Drive Mechanism: Springs or drive mechanisms are used to maintain a constant force between the seal faces, ensuring proper contact and sealing even under dynamic conditions. These mechanisms help compensate for wear and prevent face separation caused by system pressure or other external forces.
Gland and O-ring: The gland holds the bellows securely in place and helps maintain alignment between the seal faces. O-rings, usually made from elastomers, are used to provide secondary sealing and protect against external contaminants.
Considerations for Proper Installation
To ensure the proper installation of metal bellow mechanical seals, several key considerations must be taken into account. Here are some essential factors to keep in mind:
Cleanliness: Before installing a metal bellow mechanical seal, it is crucial to thoroughly clean the sealing surfaces and the surrounding components. All contaminants, such as dirt, oil, or debris, should be removed to prevent damage to the seal. Using clean, lint-free cloths and appropriate cleaning agents is necessary to achieve the desired cleanliness.
Lubrication: Proper lubrication is essential for the smooth operation and longevity of metal bellow mechanical seals. Applying a thin layer of compatible lubricant on the sealing faces can reduce friction, improve contact, and enhance the performance of the seal. However, it is crucial to use the recommended lubricant specified by the manufacturer to avoid any adverse effects on the seal's materials.
Follow Manufacturer Guidelines: Every metal bellow mechanical seal comes with specific installation guidelines provided by the manufacturer. It is vital to thoroughly read and understand these instructions before proceeding with the installation. Following the manufacturer's recommendations ensures that the seal is installed correctly and in a manner that guarantees optimal performance.
Proper Torque: When tightening the seal components, it is essential to apply the correct torque. Under-tightening can result in seal failure due to inadequate contact, whereas over-tightening can cause deformation and damage to the seal. Using a calibrated torque wrench and adhering to the recommended torque values specified by the manufacturer is crucial for achieving the desired sealing performance.
Periodic Inspections: Even with proper installation, it is essential to conduct regular inspections of the metal bellow mechanical seals to detect any signs of wear, leakage, or misalignment. Periodic maintenance and inspection can help identify potential issues at an early stage, allowing for timely repairs or replacements. This proactive approach can significantly reduce the risk of unexpected seal failure and minimize downtime.
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As one of the most professional metal bellow seal suppliers in China, we're featured by quality products and competitive price. If you're going to buy customized metal bellow seal, welcome to get quotation from our factory.
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