8 features of Teflon Hose that make it a preferred choice for special applications.
Teflon Hoses Dubai
Routine hydraulic and pneumatic systems rarely specify the use of Teflon hoses, but Teflon hoses are ideal for tough industrial environments and in aerospace applications. This guide will help you choose the right Teflon hose and avoid common pitfalls in the selection process.
Teflon® (PTFE) hoses as the name suggests have a core Teflon® inner tube, which enables it to deliver admirable performances while withstanding extreme conditions in braking systems, space shuttles, aeroplane landing gear systems and self contained breathing apparatus (SCBA) used by Fire Fighters in dangerous situations.
The unique characteristics of Teflon hoses make them a good choice for applications where the following factors need to be considered:
- Resistance to Heat and cold
- Resistance to toxic materials
- Low permeability
- Resistance to corrosion
- Light in weight
- Resistance to Flex and fatigue
- Easy cleaning and sanitizing
- Resistance to UV/Ozone
Teflon hoses are available with different kinds of braiding like Stainless Steel (304/316), Monel, Bronze, silicone, textile and even thermo plastic, depending on the specific application.
How to select the right Teflon hose?
Just as in other hydraulic hoses, Teflon based hoses also come in a wide variety and the following considerations should help you to zero in on the right type for the specific environment and application.
Convoluted or Smooth bore-Convoluted bore hoses typically have a 3” minimum bend radius and come in bore sizes of 0.4” and above, whereas smooth bores are generally available in bore sizes fo 1” or less with a higher minimum bend radius
Non-conductive or conductive-Hoses carrying fuels like gasoline or similar fluids of low viscosity at higher flow rates may have static charges built up that can arc through the Teflon to the outer braid causing pinholes in the inner Teflon tube. Using a conductive Teflon hose will enable the static charge to pass of harmlessly to the end fittings preventing pin holes in the inner Teflon tube.
Wall thickness of Teflon Hoses-Teflon hoses with thin walls are more cost effective as they contain less material, but for applications where the hose flex is severe, thicker walls are recommended as they are more resistant to buckling. Thick wall Teflon hoses also are less permeable for gas applications
Braiding-While 304 Stainless Steel braiding is common for Teflon hoses, 316 braiding is most suitable for marine hoses. For severe marine environments where corrosion is a threat, Monel braided Teflon hoses is the answer. Bronze braided hoses is also used for marine applications and also where hoses may rub against each other or against other equipment due to the lubricity in bronze that helps extend the life of the hose. Braid material also affect pressure ratings of a Teflon hose. Monel and bronze braided hoses are used for lower pressure ratings, whereas stainless steel hoses are often used in aerospace and extreme industrial environments while handling as much as 5000 psi pressures.
Fittings-can be Crimp, Swage or re-usable as there are no significant differences in performance and factory recommended fittings should be used to get optimum performances while increasing hose life.
Extra Protection Teflon hoses exposed to severe environments maybe fitted with silicone or thermoplastic sleeves, fire resistant sleeves or even metallic protective guards for external protection. Hoses that are used in a vacuum space, are fitted with internal sleeves or coils to avoid collapse of the Teflon hose.
For more reading on Teflon material, click here.
Have a special requirement for a special application? Contact Inflex Hydraulics now and speak to our Hose specialist for the right solution.
Teflon Hoses Dubai.