| Parameter |
Details |
| General Information |
|
| Seal Type |
QT - Type 21 |
| Application |
Suitable for various industrial pumps, including centrifugal pumps, chemical process pumps, and water pumps. |
| Design Features |
Single - spring, unbalanced design for simple and reliable operation. The seal face is precision - ground for excellent sealing performance. |
| Materials |
|
| Seal Face Material |
Carbon graphite (for the rotating face) and silicon carbide (for the stationary face). This combination provides good wear resistance and corrosion resistance. |
| Secondary Sealing Element Material |
A high - performance elastomer with good flexibility and chemical resistance. |
| Metal Parts Material |
Stainless steel 316 for the spring and metal housing, offering high strength and corrosion resistance. |
| Dimensions |
|
| Bore Size Range |
20 mm - 100 mm. Available in various standard bore sizes to fit different pump shafts. |
| Outside Diameter |
For a 20 mm bore size seal, the outside diameter is approximately 45 mm. As the bore size increases, the outside diameter also increases proportionally. For example, for a 100 mm bore size seal, the outside diameter is around 160 mm. |
| Width |
The width of the seal assembly is generally between 25 mm - 40 mm, depending on the bore size. |
| Operating Conditions |
|
| Pressure Range |
The seal can withstand a maximum pressure of 1.5 MPa. It can operate stably in a pressure range from 0.1 MPa to 1.5 MPa. |
| Temperature Range |
The operating temperature range is from - 20°C to 120°C. This allows it to be used in a wide variety of industrial environments. |
| Shaft Speed |
The maximum shaft speed is 3000 RPM. It can maintain good sealing performance at speeds up to this limit. |
| Performance Metrics |
|
| Leakage Rate |
Under normal operating conditions, the leakage rate is less than 1 ml/h. This low leakage rate ensures the efficient and safe operation of the equipment. |
| Wear Rate |
The wear rate of the seal faces is extremely low. The carbon graphite face has a wear rate of less than 0.05 mm/year, and the silicon carbide face has a wear rate of less than 0.01 mm/year. |
| Friction Coefficient |
The friction coefficient between the seal faces is approximately 0.1 - 0.2. This relatively low friction coefficient reduces energy consumption and heat generation during operation. |
| Installation and Maintenance |
|
| Installation Torque |
For the mounting bolts, the recommended installation torque is 10 - 15 Nm. This ensures proper installation and prevents leakage due to improper tightening. |
| Maintenance Interval |
Regular maintenance is recommended every 6 - 12 months, depending on the operating conditions. During maintenance, the seal faces should be inspected for wear and damage, and the secondary sealing elements should be replaced if necessary. |
| Storage Conditions |
The seal should be stored in a dry and clean environment at a temperature between 10°C - 30°C. It should be protected from direct sunlight and corrosive substances. |
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.
Mechanical sealing adopts the principle of mechanical friction sealing, which has excellent sealing performance, which can effectively prevent leakage and protect the safety of the environment and equipment. Compared with traditional packing seals and rotary seals, the sealing effect of mechanical seals is more reliable.
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 mechanical seals are designed to be easy to service and replace,simply by removing the sealing components and replacing the sealing surface and sealing ring. Compared with other sealing forms, our products are more convenient to repair and replace.
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, 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.
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.
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