Introduce

The fuel pump sealing rubber grommet bush is a component used in automobile fuel systems to prevent leaks at the connection between the fuel pump and the fuel tank. The fuel pump is a key component of the fuel system, responsible for pumping fuel from the tank to the engine supply system. The fuel pump sealing rubber gasket is designed to prevent fuel leakage at the fuel pump installation site by providing a secure seal. Typically made of rubber, this gasket offers excellent sealing and oil resistance. It is installed at the bottom of the fuel pump and creates a seal at the interface with the fuel tank during installation. The fuel pump is prevented from leaking during operation to ensure the normal operation and safety of the fuel system. The design and dimensions of the pump gasket are typically matched to the specific fuel pump model and vehicle manufacturer’s requirements. The gasket must be resistant to oil, corrosion, and high temperatures to withstand the harsh working environment in the fuel system. When installing or replacing a fuel pump, it is important to use a rubber gasket of the appropriate size and quality to ensure the reliability and sealing of the fuel system.

Technical data

Material FKM
Density 1.8–2.0 g/cm³
Hardness (a measure of hardness)  70–90 Shore A
Tensile strength 10–20 MPa
Elongation at break  100 — 300%

Certification standard

  • ISO 9001 is a globally recognized quality management system certification standard that assures manufacturers adhere to a set of quality management principles and best practices.
  • ISO/TS 16949: This is an automotive sector quality management system certification standard that demands manufacturers to fulfill stringent quality criteria while designing, developing, manufacturing, and selling automotive components.
  • ASTM D2000: An American Society for Testing and Materials (ASTM) standard that governs the performance and properties of rubber materials.
  • SAE J200: A Society of Automotive Engineers (SAE) standard that outlines the categorization and characteristics of rubber materials, such as oil resistance and heat resistance.

Advantage and function

  1. Fuel pump sealing rubber grommet bush is meant to keep the connection between the fuel pump and the fuel tank from leaking. It offers a dependable seal to prevent gasoline leakage during fuel pump operation, assuring the fuel system’s regular functioning and safety.
  2. Oil resistance: This rubber gasket cover is often composed of oil-resistant materials, such as Nitrile Rubber (NBR) or Fluoroelastomer Rubber (FKM/Viton). As a result, it can endure contact with gasoline and fuel solvents without corroding or being damaged.
  3. High temperature resistance: Fuel pump sealing rubber grommet bush must regularly endure high temperatures due to the fuel in the fuel system and the heat created by the engine. Certain rubber compounds, such as Fluoroelastomer Rubber (FKM/Viton), offer exceptional high temperature endurance, with temperatures ranging from 200 °C to 250 °C.
  4. Resistance to Corrosion: The rubber gasket must be able to withstand the chemicals and corrosive compounds prevalent in the fuel system. Rubber materials with high corrosion resistance can assure the cushion cover’s long-term use in severe conditions.
  5. Fuel pump sealing rubber grommet bush is typically shaped and sized to fit the fuel pump installation site, allowing it to be readily inserted at the bottom of the fuel pump and establish a tight seal with the gasoline tank interface. When the gasoline pump has to be replaced, the rubber gasket is readily replaced to guarantee the system’s durability and sealing.

Conclusion

The fuel pump sealing rubber grommet bush is a crucial component in automobile fuel systems, designed to prevent leaks at the connection between the fuel pump and the fuel tank. This gasket, typically made of rubber, offers excellent sealing and oil resistance. It is installed at the bottom of the fuel pump and creates a seal at the fuel tank interface during installation. The gasket must be resistant to oil, corrosion, and high temperatures to withstand the harsh working environment in the fuel system. When installing or replacing a fuel pump, it is essential to use a rubber gasket of the appropriate size and quality to ensure the system’s reliability and sealing.