Versatile Mechanical Seal Type 12D for Enhanced Machinery Efficiency

• Customization: Available
• Structure: Single End
• Pressure: High Pressure Mechanical Seals
• Model NO.: QT-12D
• Speed: General Speed Mechanical Seal
• Temperature: Low-Temperature Mechanical Seal
• Performance: Temperature
• Standard: Standard
• Type: Qt-12D
• Balance: Balanced
• Brand: Queeny
• Price: Lower Than Original
• Delivery Time: Stock
• Quality: 12 Month Guarantee
• Transport Package: Beautiful Package
• Specification: Customized
• Trademark: Queeny
• Origin: Shanghai, China
• HS Code: 8484200090
• Production Capacity: 300000PCS
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 1.000kg

Product Description

Parameter Category	Specific Parameter	Detailed Description
Basic Information
Seal Type	QT-12D Mechanical Seal	A high - performance mechanical seal designed for industrial pumping systems, ensuring reliable operation and efficient sealing under various conditions.
Model	QT-12D	This model is engineered to meet the demanding requirements of different fluid handling applications.
Materials
- Rotating Ring	Tungsten Carbide	Tungsten carbide provides excellent hardness and wear resistance, enabling the rotating ring to endure high - speed and high - pressure operations, thus extending the seal's overall lifespan.
- Stationary Ring	Silicon Nitride	Silicon nitride offers good corrosion resistance, high strength, and a smooth surface finish, which are essential for effective sealing and minimizing friction.
- O - Ring	Ethylene - Propylene Diene Monomer (EPDM)	EPDM O - ring ensures a tight seal and is highly resistant to water, steam, and many polar substances, making it suitable for a wide range of media.
Size Specifications
Shaft Diameter Range	25 - 60 mm	The seal can be installed on shafts with diameters within this range, making it adaptable to numerous pump shaft sizes commonly used in industrial settings.
Seal Chamber Inner Diameter	35 - 70 mm	Designed to fit into seal chambers with inner diameters in this range, ensuring proper installation and optimal performance.
Seal Width	9 mm	The 9 - mm width is carefully selected to balance effective sealing and reduced frictional forces, contributing to energy efficiency.
Performance Parameters
Working Pressure	Maximum 2.0 MPa	Under normal operating conditions, the seal can withstand a maximum pressure of 2.0 MPa, preventing leakage of the pumped fluid and maintaining system integrity.
Working Temperature	-30ºC - 180ºC	Capable of operating effectively within this broad temperature range, suitable for applications with extreme cold or high - temperature requirements.
Linear Velocity	Maximum 12 m/s	The seal is designed to handle a maximum linear velocity of 12 m/s, ensuring stable performance even in high - speed rotating pumps.
Applicable Media
- Water - based Fluids	Suitable for potable water, process water, and aqueous solutions with a pH range of 2 - 13.
- Oil - based Fluids	Compatible with mineral oils, synthetic lubricants, and some vegetable - based oils.
- Chemical Fluids	Resistant to weak acids, alkalis, and many organic solvents.
Installation and Maintenance
Installation Method	Axial Installation	Installed axially onto the pump shaft following a precise installation procedure to ensure correct alignment and a secure seal.
Installation Torque	18 - 22 N·m	During installation, applying a torque within this range secures the seal firmly without causing damage to its components.
Maintenance Cycle	Every 4000 operating hours	Regular maintenance is recommended every 4000 operating hours. This includes visual inspection for signs of wear, leakage, and proper functioning of the seal components.
Storage Conditions	Store in a dry, dark environment at a temperature between 5ºC - 25ºC. Avoid exposure to direct sunlight and strong oxidizing agents.	Proper storage conditions preserve the seal's material properties and prevent premature degradation.
Quality and Certification
Service Life	Approximately 2 - 3.5 years under normal operating conditions	With proper operation and regular maintenance, the QT-12D seal can provide reliable service for 2 - 3.5 years.
Leakage Rate	≤0.05 mL/h	Engineered to have an extremely low leakage rate, ensuring minimal fluid loss and maintaining environmental and operational safety.
Certification Standards	ISO 9001, ISO 14001	Complies with ISO 9001 quality management system standards and ISO 14001 environmental management system standards, guaranteeing high - quality product and environmental sustainability.
Other Characteristics
Vibration Resistance	Can withstand vibrations with a frequency range of 8 - 60 Hz and an amplitude of 0.6 mm.	Designed to maintain its sealing performance in environments with significant vibration, ensuring stable operation of the pumping system.
Self - lubricating Property	The seal faces are treated with a special self - lubricating coating, reducing friction and wear and enhancing the seal's durability.	This self - lubricating feature minimizes the need for additional lubrication and improves the overall efficiency of the seal.

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, 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.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.