In our popular blog “Are silicone hoses fuel resistant?” We discuss the various options for fuel hoses but what is the difference between NBR and PTFE and what exactly is the best material for fuel hoses?

Placement of the fuel hose

The best way to decide is dependant on the placement of the hose itself. Nitrile rubber hoses (NBR) should only be run in areas such as underneath the car, or under the hood. They should never be run inside the cabin as fuel fumes can permeate through the wall of the hose. For hoses that need to be run inside the cabin, PTFE hoses are ideal, as fuel fumes will not permeate the hose walls.

Flexibility

Nitrile rubber hoses offer an excellent bend radius. This means that you can create the desired system without the need for extra fittings and angles. The hoses can be bent and fixed as needed, resulting in a sleek and tidy fuel system. PTFE hoses have a significantly reduced bend radius, more angle and end fittings may be required, which increases the chance of a leak occurring in the system.

Cost

While PTFE hoses are generally cheaper, the savings are often offset on the extra fittings that are required.

Weight

An additional to PTFE hoses are their lightweight nature. If weight is a concern, PTFE hoses might be the ideal solution for your fuel line.

To see Viper Performances full range of fuel hoses click here.