BOA Fuel Systems & Side Components

Products for Fuel Systems & Side Components

Mini bellows for fuel injection and high pressure pumps

BOA mini bellows

The precision mini bellows are the some of the smallest products within the BOA product portfolio. From as small as 3 mm in diameter and larger, the BOA Group produces high quality mini bellows on a fully automated line for gasoline and diesel applications.

Basic characteristics:

  • Sealing of high dynamic moved parts
  • High pressure resistance
  • Low stiffness
  • High cycle durability

Corrosion resistant BOA mini bellows are produced with seamless or welded tube and with or without additional welded end parts.

Capsules for high pressure pumps

BOA capsules for high pressure pump

Basic characteristics:

  • Compensates volume changes
  • Low stiffness
  • Linearity of stiffness
  • High cycle durability

A special characteristic of these capsules is the ultra-high vacuum tightness (10-8 mbarl/s).

BOA capsules for high pressure pumps are produced according to customer requirements.

Fuel and air condition hoses

BOA Fuel and air condition hose

Basic characteristics:

  • Flexible
  • Corrosion resistant
  • Gas-tight
  • Fuel resistant
  • High pressure resistant

BOA fuel and air condition hoses can be produced with either single or multiply designs.
The hoses meet exceed high pressure requirements. They can be produced as a standard part or customized to meet specific customer needs. BOA also specializes in welded end connections made according to customer requirements.

Bellows for Blow Off Valves

BOA bellows for blow off valves

Basic characteristics:

  • High stroke compensation
  • Low stiffness
  • Linearity of stiffness
  • High cycle durability

Welded tube construction

BOA welded tube construction

Basic characteristics:

  • Corrosion resistant
  • Gas-tight
  • Fuel resistant
  • High pressure resistant

Bellows assemblies for pedestrian protection

Bellows for pedestrian protection

Basic characteristics:

  • Low stiffness
  • No buckling under compression
  • Progressive stiffness curve
  • Corrosion resistant


Bellows for pedestrian protection are thin walled, single or multiplied bellows that are engineered according to customer requirements.