Linde Polymer Tec Co.,Ltd. is one of the most experienced manufacturers and suppliers of ship fuel system pump shaft seal rubber seals in China, also supports customized service. Please feel free to buy high quality ship fuel system pump shaft seal rubber seals for sale here from our factory.
Ship fuel system pump shaft seal rubber seal
In the ship fuel system, the pump shaft seal is a key component to ensure the stable operation of the system, and the rubber seal plays an irreplaceable role in it with its excellent performance.
Products material Description
1.1 Nitrile rubber (NBR)
Nitrile rubber (NBR) is usually used as the rubber material for pump shaft seals. Nitrile rubber is made from butadiene and acrylonitrile by emulsion polymerization. Its molecular structure contains polar nitrile groups, which gives it good oil resistance and can effectively resist the erosion of fuel. At the same time, nitrile rubber also has good wear resistance, aging resistance and mechanical strength, and can adapt to the complex working environment of the ship's fuel system.
Products Performance Description
2.1 Excellent oil resistance
Excellent oil resistance: It has excellent tolerance to various fuels, such as diesel and heavy oil. It will not swell, soften or deteriorate after long-term contact, ensuring the long-term stability of sealing performance.
2.2 Good sealing
Good sealing: The elasticity of rubber enables it to fit tightly between the pump shaft and the pump body, forming an effective sealing barrier to prevent fuel leakage and ensure the normal pressure of the fuel system.
2.3 Wear resistance
Wear resistance: During the high-speed rotation of the pump shaft, the sealing rubber will produce friction with the pump shaft. The wear resistance of nitrile rubber can ensure that it can still maintain a good sealing effect after long-term use, reducing the frequency of replacement due to wear.
2.4 Anti-aging performance
Anti-aging performance: It can resist temperature changes, oxidation and corrosion of various chemicals during the operation of the ship, extend the service life of the seals and reduce maintenance costs.
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Performance Parameters |
Details |
Product Application Scenarios |
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Material |
Nitrile rubber (NBR), made by emulsion polymerization of butadiene and acrylonitrile, with polar nitrile groups in its molecular structure |
Shaft seals of ship fuel systems to prevent fuel leakage; key sealing components in automotive engine fuel systems to ensure the normal operation of the engine; seals for hydraulic pumps and hydraulic cylinders in industrial hydraulic systems to ensure stable system operation; shaft seals for various pumps and valves in petrochemical pipeline systems to prevent the leakage of dangerous media |
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Hardness |
Shore hardness 90HA. It has certain flexibility during installation, which is convenient for installation; and it can provide sufficient strength during operation to resist deformation caused by pressure |
During the installation of the fuel pump in a ship engine, it is convenient for workers to operate, and after installation, it can withstand the pressure during fuel transportation |
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Tensile Strength |
Usually greater than 10MPa. It has strong anti - fracture ability when stretched by external forces, ensuring reliability under complex working conditions |
In the petrochemical pipeline system, even if the pipeline undergoes slight stretching due to temperature changes or mechanical vibrations, the sealing parts are not easily damaged |
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Elongation |
Can reach 300% - 500%. It can adapt to the slight displacement and vibration during the operation of the pump shaft and maintain a tight sealing state |
During the operation of an automotive engine, the fuel pump shaft will experience vibration and displacement, and the NBR90 sealing parts can always maintain a good sealing effect |
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Operating Temperature Range |
Generally between -20°C and 120°C, which can meet the working requirements of the ship fuel system under different environmental conditions |
It is applicable to the relevant sealing parts of automobiles traveling in cold regions and industrial equipment operating in high - temperature environments |
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Oil Resistance |
It has excellent tolerance to various fuels such as diesel and heavy oil. It will not swell, soften or deteriorate after long - term contact, ensuring the long - term stability of the sealing performance |
In the fuel storage and transportation systems of ships and automobiles, it can work stably for a long time |
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Sealing Property |
The elasticity of rubber enables it to fit closely between the pump shaft and the pump body, forming an effective sealing barrier to prevent fuel leakage and maintain the normal pressure of the fuel system |
In the industrial hydraulic system, it can effectively prevent the leakage of hydraulic oil and ensure the stable pressure and working efficiency of the system |
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Wear Resistance |
Under the condition of friction between the high - speed rotating pump shaft and the sealing rubber, it can still maintain a good sealing effect after long - term use, reducing the replacement frequency due to wear |
During the long - term operation of the fuel pump in a ship engine, the maintenance frequency can be reduced |
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Anti - aging Performance |
It can resist temperature changes, oxidation, and the erosion of various chemical substances during the operation of the ship, extend the service life of the sealing parts, and reduce maintenance costs |
In the petrochemical pipeline system exposed to the outdoors for a long time, it can maintain the sealing performance for a long time |
Products parameters Description
3.1 Hardness
Hardness: Generally, the Shore hardness is between 70 and 90HA. Such hardness can ensure the flexibility of the seal during installation, making it easy to install in place, and provide sufficient strength during operation to prevent excessive deformation caused by pressure.
3.2 Tensile strength
Tensile strength: usually greater than 10MPa. Higher tensile strength means that the seal is less likely to break when stretched by external force, ensuring its reliability under complex working conditions.
3.3 Elongation
Elongation: The elongation can reach 300% - 500%. Good elongation performance enables the seal to adapt to the slight displacement and vibration of the pump shaft during operation and always maintain a tight sealing state.
3.4 Operating temperature range
Working temperature range: The working temperature of nitrile rubber seals is generally between -20℃ and 120℃, which can meet the working requirements of the ship fuel system under different environmental conditions.
Products Other application areas Description
4.1 Automobile engine fuel system
In addition to ship fuel systems, nitrile rubber pump shaft seals are also widely used in the following areas: Automobile engine fuel system: In the fuel pump, fuel injector and other components of the automobile, it plays the role of sealing the fuel to ensure the normal operation of the engine.
4.2 Industrial Hydraulic System
Industrial hydraulic system: used for sealing hydraulic pumps, hydraulic cylinders and other equipment to prevent hydraulic oil leakage and ensure the pressure stability and working efficiency of the hydraulic system.
4.3 Petrochemical Pipeline System
Petrochemical pipeline system: In the pipelines for transporting petroleum and chemical products, the shaft seals of various pumps, valves and other equipment are sealed to prevent leakage of flammable, explosive, toxic and harmful chemical media.
Products Specific functions Description
5.1 Prevent fuel leakage
Prevent fuel leakage: In the ship fuel system, the pump shaft is a key component for fuel delivery. The pump shaft sealing rubber can effectively prevent fuel from leaking from the gap between the pump shaft and the pump body, avoiding fuel loss and environmental pollution, while ensuring the pressure stability of the fuel system and ensuring the normal delivery of fuel.
5.2 Protecting the pump body and pump shaft
Protect the pump body and pump shaft: Through good sealing, impurities and moisture in the fuel are prevented from entering the pump body, reducing corrosion and wear on the pump body and pump shaft, and extending the service life of the pump.
5.3 Maintaining System Performance
Maintaining system performance: Stable sealing performance helps maintain the efficiency of the fuel system, ensuring that the fuel can be delivered to the engine and other equipment at the appropriate pressure and flow rate, ensuring that the ship's power supply is stable and reliable.
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