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Queeny design engineers are able to produce a seals solution for the most basic applications,to those that are extremely complicated and unique. We are able to provide you these solutions supported by life test data and years of excellent field performance.As your partner, we provide sealing solutions for centrifugal pumps,agitators and other rotating equipment, and help you consolidate your brand and market position.
Our products are made of high quality materials and manufacturing processes, with a long service life and low cost of use. It can effectively reduce the maintenance costs and operating costs of equipment .
Our products are made of high quality materials and manufacturing processes, with a long service life and low cost of use. It can effectively reduce the maintenance costs and operating costs of equipment .
Mechanical seal is suitable for high temperature, low temperature, high pressure, vacuum and corrosive media and other complex environment, to ensure the stable operation of the equipment.
Mechanical seal is suitable for high temperature, low temperature, high pressure, vacuum and corrosive media and other complex environment, to ensure the stable operation of the equipment.
Shanghai Queeny Mechanical Equipment Co.,Ltd.is an enterprise specializing in the R&D,manufacture and export of mechanical seal products,headquartered in Pudong New Area,Shanghai.Our products mainly include component seals,dry gas seals,metal bellows seals,mixer and agitator seals,single & dual cartridge seals,silicon carbide parts and tungsetn carbide parts,which can replace John Crane, Burg--mann, AES, Chesterton,Flowserve,Rotenand other similar products,they are widely used in water treatment,petroleum,chemical,food,medical and other industries.
Relying on first-class technology and professional services,since its establishment, Queeny has carried out in-depth cooperation with hundreds of companies in more than 70 countries around the world.Our products are exported to Asia,Europe,North America,South America,Oceania and Africa in large quantities every year,and have been widely praised.Super high cost performance is the basis of our long-term cooperation with customers.We always rigorously treat clients' requirements,strictly control the production process,and comprehensively monitor the export procedure.It is our mission to reduce production and operation costs for more enterprises all over the world.
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Q1: Are you a trading company or a factory?
We are a factory, so we can offer you factory prices with high quality.
Q2: Can I get samples?
Yes. You can ask for samples. Usually it's free, but you need to pay for shipping.
Q3: Can l use my own logo or design on the goods?
Yes, we provide OEM/ODMservices; your logo and design can be printed on the products.
Q4: What are your payment terms?
We accept T/T, Paypal, Western Union, and credit card payment is also welcome.
Q5: How about the delivery time?
For stock items, we can ship immediately after receiving the payment.
For other products, we need 14-25 days for mass production, which depends on the quantity and type of order.
Q6: How can we ensure the quality?
Pre-production samples are required before mass production;Final inspection is required before shipment;
Q7: 1 can't find our products in your catalog, can you customize the products for us?
Yes, customized products are available, OEM is welcome.
Q8: Can l buy pumps or pump parts from your company?
Yes, we also provide pumps and pump parts.
Magnetic Fluid Seal Product Details (English Version)
1. Product Overview
Magnetic Fluid Seal (MFS) is an advanced sealing technology that utilizes magnetic fluids-a colloidal mixture of ferromagnetic nanoparticles suspended in a carrier liquid-to create a hermetic barrier. It is widely applied in high-speed rotating equipment, vacuum systems, and harsh industrial environments12.
2. Working Principle
- Magnetic Circuit Design: Magnetic pole members (e.g., 6A/6B in outer cylinder) form a closed magnetic circuit around the rotating shaft. Magnetic fluid is held in gaps by magnetic flux, creating multiple sealing stages34.
- Heat Management: Integrated heat-conductive materials (e.g., cylindrical thermal conductors) dissipate heat generated by viscous friction, ensuring stable performance under high-speed rotation4.
3. Key Technical Features
- High Sealing Capacity: Sealing pressure depends on magnetic flux density in gaps (typically 0.5-2.0 T) and structural parameters25.
- Low Wear & Long Lifespan: Non-contact sealing minimizes mechanical wear, suitable for pumps, valves, and reactors in petrochemical industries12.
- Temperature Resistance: Operates stably in -30°C to 150°C ranges, with enhanced designs for extreme conditions4.
- Customizable Gaps: Adjustable sealing gap (0.1-0.5 mm) to accommodate shaft radial/axial runout25.
4. Applications
- Industrial Machinery: Centrifugal pumps, wire drawing machines, and compressors12.
- Vacuum Systems: Semiconductor manufacturing equipment and aerospace components.
- Medical/Research Devices: MRI systems and precision instruments requiring contamination-free sealing.
5. Performance Parameters
Parameter |
Specification |
Max. Speed |
≤20,000 RPM |
Pressure Resistance |
0.1-1.5 MPa (multi-stage designs) |
Temperature Range |
-30°C to 150°C |
Fluid Compatibility |
Oil-based/water-based magnetic fluids |
Lifespan |
≥10,000 hours (under standard conditions) |
6. Advantages & Certifications
- Leakage Prevention: Seals gases and liquids with leakage rates <1×10-¹² Pa·m³/s2.
- Modular Design: Supports easy integration with existing equipment (e.g., retrofit for high-speed shafts)3.
- Compliance: Meets ISO 9001 and industrial safety standards.
Note: For customized solutions (e.g., non-Newtonian magnetic fluids for larger shaft runout), contact technical support with specific requirements