| Basic Information |
|
|
| Seal Type |
QT 12D Mechanical Seal |
A specialized mechanical seal engineered for enhanced performance in diverse industrial pump systems. It is designed to provide reliable sealing under various operating conditions. |
| Model |
QT 12D |
Tailored to meet the specific needs of modern pumping applications, ensuring efficient operation and long - term durability. |
| Materials |
|
|
| - Rotating Ring |
Tungsten Carbide |
The rotating ring made of tungsten carbide offers exceptional hardness and wear resistance. This material can withstand high - speed rotation and heavy loads, minimizing wear and tear over time. |
| - Stationary Ring |
Alumina Ceramic |
The stationary ring, composed of alumina ceramic, provides excellent corrosion resistance and a smooth surface. These properties are crucial for maintaining a tight seal and reducing friction. |
| - O - Ring |
Fluoroelastomer (FKM) |
The FKM O - ring provides a reliable and flexible seal. It is resistant to a wide range of chemicals and temperature variations, ensuring consistent performance in different media. |
| Size Specifications |
|
|
| Shaft Diameter Range |
18 - 45 mm |
This seal is compatible with pump shafts within this diameter range, making it suitable for a variety of pump models and sizes in industrial settings. |
| Seal Chamber Inner Diameter |
28 - 55 mm |
Specifically designed to fit into seal chambers with inner diameters falling within this interval, enabling proper installation and optimal sealing. |
| Seal Width |
8.5 mm |
The 8.5 - mm seal width is optimized to balance effective sealing performance and reduced friction, enhancing the overall efficiency of the pump system. |
| Performance Parameters |
|
|
| Working Pressure |
Maximum 1.5 MPa |
Under normal operating conditions, the QT 12D seal can endure a maximum working pressure of 1.5 MPa, preventing leakage and maintaining system integrity. |
| Working Temperature |
-20ºC - 130ºC |
It can operate effectively within this temperature range, making it suitable for applications that involve both cold and moderately high - temperature fluids. |
| Linear Velocity |
Maximum 10 m/s |
The seal is capable of handling a maximum linear velocity of 10 m/s, ensuring stable performance even at high - speed pump operations. |
| Applicable Media |
|
|
| - Water - based Fluids |
Suitable for potable water, industrial wastewater, and various aqueous solutions with a pH range of 4 - 10. It can handle both slightly acidic and alkaline water - based substances. |
|
| - Oil - based Fluids |
Compatible with common lubricating oils, hydraulic oils, and some petroleum - based fluids, providing reliable sealing for oil - circulation systems. |
|
| - Chemical Solutions |
Resistant to many typical chemical solutions, such as weak acids, alkalis, and some organic solvents used in chemical processing and manufacturing. |
|
| Installation and Maintenance |
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|
| Installation Method |
Axial Installation |
The seal is installed axially onto the pump shaft. A precise installation procedure must be followed to ensure correct alignment and a secure seal. |
| Installation Torque |
10 - 15 N·m |
During installation, applying a torque within this range secures the seal properly without causing damage to its components. |
| Maintenance Cycle |
Every 3500 operating hours |
Regular maintenance is recommended every 3500 operating hours. This includes inspecting the seal for signs of wear, leakage, and proper alignment, and performing any necessary adjustments or replacements. |
| Storage Conditions |
Store in a dry, shaded environment at a temperature between 0ºC - 30ºC. Keep away from direct sunlight, moisture, and corrosive gases. |
Proper storage helps preserve the integrity of the seal components, ensuring they are in optimal condition when ready for installation. |
| Quality and Certification |
|
|
| Service Life |
Approximately 1.5 - 2.5 years under normal operating conditions |
With proper operation and maintenance, the QT 12D mechanical seal can offer reliable service for 1.5 to 2.5 years, reducing the frequency of replacement. |
| Leakage Rate |
≤0.08 mL/h |
Engineered to have a low leakage rate, this seal ensures that the pumped fluid remains within the system, minimizing the risk of fluid loss and environmental contamination. |
| Certification Standards |
ISO 9001, ISO 14001 |
The QT 12D seal complies with ISO 9001 quality management system standards and ISO 14001 environmental management system standards, demonstrating its quality and environmental sustainability. |
| Other Characteristics |
|
|
| Vibration Resistance |
Can withstand vibrations with a frequency range of 5 - 45 Hz and an amplitude of 0.4 mm. |
Designed to maintain its sealing performance in environments with moderate vibration levels, ensuring stable pump operation. |
| Self - lubricating Property |
The seal surfaces are treated with a self - lubricating layer to reduce friction and wear. |
This self - lubricating feature extends the seal's service life and improves the overall efficiency of the pump by reducing energy consumption due to friction. |
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