Applications in fuel management normally require a custom solution or a modification to a standard design. The solenoid typically controls the flow of fuel (gasoline or diesel) to the carburetor or injector system. In addition, the solenoid can provide a safety shut off function in cases where the attitude or orientation of the fuel management subsystem deviates from normal operating conditions. The solenoid may be immersed in fuel, or be external to the fuel source. Design considerations often include:

• Leak proof assemblies in external fuel source applications
• Materials resistant to corrosion and deterioration from fuel contact
• Number of life cycle actuations (on / off) 
• Shock and vibration requirements
• Operating temperature maximum and minimum
• Zero defect leak testing
• Holding force repeatability
• Holding force voltage requirements throughout the temperature variances
• Ignition protection requirements (UL, NFPA, Title 33, etc.)