The three most important things to understand when choosing a fuel transfer system are pressure, flow rate, and differential pressure. These factors may change based on the type of liquid being transferred. A pressure drop in a fuel transfer system is the reduction of the pressure of the fuel as it is transferred from the pump to the engine. The primary cause of the drop is the resistance of the liquid to flow.
At Grohall, our experts can help you find the right fuel transfer system based on your industry, budget, and needs. We distribute systems from major brands, including Fill-Rite, GPI, Piusi, and more. Keep reading to learn more about why pressure drop occurs, the dangers of a pressure drop, and how to reduce it.
Biggest Causes of Pressure Drops in Fuel Transfer Systems
The biggest causes of pressure drops in fuel transfer systems are:
- Friction – Friction between the fuel and the interior surfaces of the hoses, lines, and other components can slow the rate of transfer of the liquid from one system to another.
- Flow rate – A higher rate of flow can increase friction and the risk of a pressure drop.
- Diameter and length of hose or line – The diameter and length of the hose or line being used for transfer will also contribute to your risk of pressure drop. A smaller diameter increases the risk of a pressure drop, as does a longer line or hose.
- Quality of fittings and components – The quality of your fittings and components can increase friction, slow flow rate, and increase the risk of pressure drop. If there is damage to fittings or components or if there are bends or other restrictions, you have a higher chance of a drop.
- Temperature – The temperature of the liquid can affect its viscosity. A higher temperature will decrease viscosity and the risk of pressure drop. A lower temperature can increase viscosity and the risk of a pressure drop.
Dangers of a Pressure Drop
Pressure drops can cause major problems, including:
- Insufficient fuel delivery and lean air to fuel mixture
- Engine misfires and reduced power
- Increased emissions
- Stalling and poor engine performance
- Fuel pump strain
How to Prevent a Pressure Drop in Your Fuel Transfer System
When you better understand the causes and dangers of pressure drop, you can take measures to prevent it. The best ways to reduce your risk of a pressure drop in your fuel transfer system are:
- Ensure you’re using the right size fuel line or hose
- Reduce the risk of bends or restrictions in the hose or line
- Use only high-quality components and fittings
- Regularly inspect the hose or line, components, and fittings for signs of damage or degradation
- Consider installing a fuel pressure regulator
To get assistance finding the right fuel transfer system in Arizona or for expert advice on reducing the risk of pressure drop, call us now at (520) 622-4263 or 1-800-624-0003 or email us at sales@grohall.com.