| Customization: | Available |
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| Standard Or Nonstandard: | Nonstandard |
| Shaft Hole: | 8-24 |
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Parameter Category
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Specific Parameter
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Detailed Description
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Basic Information
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Seal Type
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QT - coupling Mechanical Seal
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A specialized mechanical seal designed for efficient power transmission and reliable sealing in coupling applications.
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Brand
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[Custom Brand Name]
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Model
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QT - coupling
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This model is engineered to provide high - performance sealing and minimize leakage in various industrial coupling systems.
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Materials
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- Rotating Ring
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Tungsten Carbide
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Tungsten carbide offers excellent hardness and wear resistance, enabling the rotating ring to withstand high - speed rotations and heavy loads, ensuring a long - lasting service life.
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- Stationary Ring
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Carbon Graphite
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Carbon graphite provides good self - lubrication and corrosion resistance. Its low friction coefficient helps in reducing wear and energy consumption during operation.
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- O - Ring
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Ethylene Propylene Diene Monomer (EPDM)
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EPDM O - ring is highly resistant to water, steam, and many chemicals. It offers good sealing performance and can maintain elasticity over a wide temperature range.
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Size Specifications
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Shaft Diameter Range
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25 - 60 mm
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The seal is compatible with shafts having diameters within this range, making it suitable for a broad spectrum of coupling - equipped pumps and machinery.
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Seal Chamber Inner Diameter
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35 - 70 mm
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Designed to fit precisely into seal chambers with inner diameters in this range, ensuring proper installation and optimal sealing performance.
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Seal Width
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10 mm
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The 10 - mm width is carefully selected to balance effective sealing and structural stability, reducing the risk of leakage and component failure.
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Performance Parameters
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Working Pressure
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Maximum 2.0 MPa
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Under normal operating conditions, the QT - coupling seal can withstand a maximum pressure of 2.0 MPa, preventing the leakage of fluids or gases in high - pressure systems.
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Working Temperature
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-30ºC - 130ºC
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It can operate effectively within this extensive temperature range, making it adaptable to various industrial environments, from cold storage facilities to moderately high - temperature processing plants.
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Linear Velocity
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Maximum 12 m/s
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Capable of handling a maximum linear velocity of 12 m/s, the seal ensures stable performance even in high - speed rotating machinery, maintaining reliable sealing integrity.
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Applicable Media
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- Water - based Fluids
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Ideal for use with clean water, cooling water, and aqueous solutions with a pH range of 4 - 10. It can handle both low - and high - purity water applications.
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- Oil - based Fluids
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Suitable for lubricating oils, gear oils, and hydraulic oils. The seal's material compatibility allows it to perform well in oil - filled coupling systems.
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- Gaseous Media
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Can be used with non - corrosive gases such as air, nitrogen, and carbon dioxide. It provides a reliable seal to prevent gas leakage in pneumatic systems.
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Installation and Maintenance
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Installation Method
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Axial Installation with Alignment Guides
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The seal is installed axially onto the shaft using alignment guides to ensure precise positioning. This method helps in achieving proper contact between the rotating and stationary rings, enhancing sealing performance.
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Installation Torque
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18 - 22 N·m
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During installation, a torque within this range should be applied to secure the seal firmly in place. This torque value is optimized to prevent over - tightening or under - tightening, which could lead to seal failure.
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Maintenance Cycle
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Every 4000 Operating Hours
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Regular maintenance is recommended every 4000 operating hours. Maintenance includes inspecting the seal for signs of wear, checking the O - ring for damage, and ensuring proper alignment of the coupling components.
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Storage Conditions
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Store in a dry, dust - free environment at a temperature between 5ºC - 25ºC. Avoid exposure to direct sunlight and strong electromagnetic fields.
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Proper storage conditions help preserve the seal's material properties and prevent premature aging or degradation of the components.
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Quality and Certification
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Service Life
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Approximately 2 - 3.5 years under normal operating conditions
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With proper operation and maintenance, the QT - coupling seal can provide reliable service for 2 - 3.5 years, reducing the frequency of replacement and associated downtime.
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Leakage Rate
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≤0.05 mL/h
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Engineered to have an extremely low leakage rate, the seal ensures that the system remains leak - tight, improving the efficiency and safety of the machinery it is installed in.
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Certification Standards
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ISO 9001, ISO 14001, and API 682 (Level 1)
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The seal meets the stringent requirements of ISO 9001 for quality management, ISO 14001 for environmental management, and API 682 (Level 1) for mechanical seals in petroleum, petrochemical, and natural gas industries.
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Other Characteristics
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Vibration Resistance
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Can withstand vibrations with a frequency range of 8 - 60 Hz and an amplitude of 0.6 mm.
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Designed to operate smoothly in vibrating environments, the seal maintains its sealing performance, reducing the risk of leakage caused by mechanical vibrations.
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Self - Adjusting Feature
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The seal has a self - adjusting mechanism that compensates for minor shaft misalignments and thermal expansions.
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This self - adjusting feature helps in maintaining optimal sealing performance even when there are slight variations in the shaft position or temperature changes within the operating range.
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