Teflon lined hose has several advantages over typical rubber lined hoses. It is smaller in outside diameter, which allows it to be used in tight locations. The Teflon liner can withstand a higher working fluid temperature than a typical rubber liner. Its bend radius is smaller than a typical rubber lined hose. Its stainless steel outer reinforcement cover is very attractive, as well as an outstanding protective sleeve.
There are several ways to make accurate measurements. We use the Mil-Spec, flare to flare dimension. To make accurate measurements, first make sure the accessories that are to be connected are in their proper locations. You can use a tape measure to check the routing dimensions. You can also use a piece of flexible hose to route the assembly. Put the end of the hose on one fitting, and route the hose to the second fitting. Give yourself some lee way to clear exhaust, cables, or other accessories. Mark the second end of the hose with a marker. This is the assembly length that we are looking for. We'll take it from here!
We use stainless steel hose ends designed for use with Teflon hose as our primary fittings. They meet industrial and some Mil-Specs. That means that the nuts and sealing surfaces are machined to AN, or Mil-Specs. The stems have a proprietary stem/collar for retention to the hose. We use stainless hose ends because of their excellent heat resistance in firewall forward applications, as well as in other locations for their durability and attractive package.
Our Teflon assemblies are designed to use hose ends specifically for use with stainless braid Teflon hose. Yes, there are other stainless braid hoses out there, some of which has a "rubber" liner. Those fittings have a different stem, collar, lock design, and are NOT usable with Teflon hose. We crimp all hose ends to the hose using a hose crimp press designed to this job, along with the crimp dies for the different sized hose. Our hose does NOT use hose clamps, safety wire, or any other non-approved methods of hose end retention. Hose assemblies are tested to typically 3000 psi.
We use high temp silicone, fiberglass reinforced firesleeve meeting the AS1072 Mil-Spec. This sleeve meets FAA TSO-specifications as well. We use a tight fitting sleeve, that allows an almost integral assembly look compared to other slip on sleeve sizes. We use a high temp RTV to seal the ends of the sleeve to protect the crimp collar area. We use stainless steel bands to secure the firesleeve to the hose assembly for high heat protection, as well as an attractive package.
Yes! A great number of our customers have modified their planes with accessories that may not have been in the plans, or were moved from their original locations. Because we make our assemblies to order, we can custom make any assembly length, or configuration you wish. We have the capability to custom make hose ends that are typically not found, such as our -6, 180* hose ends for fuel applications. We also have the capability to custom make rigid tube assemblies that can be attached to a Teflon hose for unusual applications.
Yes! We have some hose kits for planes that generally share the accessory locations without modifications. For example, dual pedal brake hose packages for the side by side Van's RV series aircraft. Since it is a very common installation without a lot of relocation, we have a hose kit that is easy to install. We have firewall forward kits based on the PROTOTYPE RV aircraft, using those hose dimensions. HOWEVER --- since most builders typically make changes to their firewall forward configurations, we will build you a kit to your specifications to match YOUR accessories. Most of these kits are for the VAN's RV series aircraft, but we can design a package for ANY EXPERIMENTAL. We have made packages for Lancairs, Zeniths, Rans, Sonex, and several others.
TS Flightlines is here to help you. Because we build our assemblies from bulk stock, we can make any configuration of assembly you may require. We specialize in custom assemblies meeting customers specifications. And because we are a small company, we can do our own research and development on new products to serve you better. Some of these are in testing now including, smoothbore/convoluted Teflon hose for greater flexibility in larger sizes, as well as smooth fluid flow. We are also testing some reduced outside diameter, integral firesleeved Teflon hose for greater flexibility in a smaller package. We are currently developing more hose kit packages for other aircraft.
Please feel free to ask for assistance if you are unsure. You may send us your questions or comments on our Contact Us page.
THE LEADING SUPPLIER OF EXPERIMENTAL AIRCRAFT FLUIDLINES