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An line sizes

Common Types of Fittings Adapter Fittings Adapter Fittings — also known as Standard Fittings or Union Fittings — are commonly used to connect fuel line tubes and hoses to fuel pumps, fuel regulators, and fuel filters. Each AN size also uses its own standard thread size. These two lines do not involve significant amounts of flow, and therefore do not require larger sizes. A dash - size in AN "speak" refers to the I. Automotive designers had their own standards and accepted sizes, and some of those were not found in aircraft systems. Port Fittings function just like Pipe Fittings, but with the following distinctions. Engineer to Win. By using this site, you agree to the Terms of Use and Privacy Policy. Mismatched lines can come apart under pressure. This allows the threads to interfere and seal off. Verocious will be closed on Monday, September 5th in observance of labor day. Privacy Policy. This fits into a female port of corresponding size and thread pitch.

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Motorbooks International. Measure the thread OD and pitch, and you know the fitting size. Mismatched lines can come apart under pressure. The actual line construction is dictated by the application with regard to line flexibility, vacuum and pressure capability, abrasion resistance and chemical compatibility, etc. This angle can be found on the male point of the port adapter fitting and on the female inside the hose-end nut. Place fitting against base line; read fitting size where it intersects the vertical line. The AN thread is a particular type of fitting used to connect flexible hoses and rigid metal tubing that carry fluid.

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When threaded together, the NPT design creates a wedging effect, binding the thread in order to seal. Each AN size also uses its own standard thread size. Our live chat servers are currently down. AN Standards as Applied to Fluid Carrying Fittings Each AN size also references a standard male and female thread size that is used on fittings — such as hose end fittings, adapters, and port fittings. As a result, NPT port sizes allow use of a one step larger AN line than their indicated size would seem to support. AN bolt sizes translate directly to bolt OD in sixteenths of an inch. Steel adapters will have a thinner wall than aluminum, due to the increase in material strength, leaving a larger I. Motorbooks International. To help differentiate between the two systems, convention has put the "AN" before the bolt size but after the plumbing size e. The fittings we will discuss are Adapter Fittings also called Standard, or Union , Port Fittings, and Pipe Fittings, as well as thread types and size standards associated with each.

AN Fittings & Hose Sizes - Pegasus

  • AN Standards as Applied to Fluid Carrying Fittings Each AN size also references pine standard male and female thread size that is used on fittings — such as hose end fittings, adapters, and port fittings.
  • As a result fittings that adapt NPT ports to AN line are common to allow flexible AN lines to be utilized in performance automotive fuel systems.
  • Adapter Fittings — also known as Standard Fittings or Union Fittings — are commonly used to connect fuel line tubes and hoses to fuel pumps, fuel regulators, and fuel filters.

Have been consistently delighted with everything I've gotten from them. The idea behind AN hoses and AN fittings was to provide a flexible alternative to rigid tubing in plumbing systems on aircraft and military vehicles. AN hose sizes were designed to match the ID sizes of these rigid tubes. Can you see the confusion starting? It sounds convoluted, but it really is a simple idea that achieves a logical goal. On top of that, different hose types have different wall thicknesses. That sytem would make it impossible to predict the hose size required for any application. The AN numbers refer to the tubing OD in sixteenths of an inch. Note that this does not match AN Bolt Nomenclature. AN bolt sizes translate directly to bolt OD in sixteenths of an inch. To help differentiate between the two systems, convention has put the "AN" before the bolt size but after the plumbing size e. When racers adopted AN plumbing, it soon became apparent that engineers in different industries did not work together much. Automotive designers had their own standards and accepted sizes, and some of those were not found in aircraft systems. While a specification exists for 5AN hose and fittings, it is exceedingly rare in the aircraft industry. As mentioned earlier, you can always identify AN fittings based on the male thread size outside diameter. These sizes are constant regardless of brand, hose type, or fitting configuration. If your fitting has a convex 37 degree flare at the end, the threads will tell you the AN size and vice-versa. Tip: If you don't have a proper measuring tool handy, open-end wrenches make great "go-no go" gauges in a pinch! Follow us on facebook.

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Our live chat servers are currently down. Our website is under maintenance. Verocious will be sizew on Monday, September 5th in observance of labor day. Normal business operation will resume September 6th. Returning Customers click here to log in. AN vs. AN specifications are a popular standard met by all companies that manufacture AN style performance fuel hose and accessories. Here are the answers for those wanting to know. The flare angle used to seal AN connections is required to be SAE, 37 degree, as opposed to the 45 degree flare commonly found on household plumbing adapters.

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An line sizes. AN Fittings - Hose and Tubing Size Reference Charts

The AN thread is a particular type of fitting used to connect flexible hoses and rigid metal tubing that carry fluid. However, this system does not specify the ID inside diameter of the tubing because the tube wall can vary in thickness. Each AN size also uses its own standard thread size. The differences between them relate to thread class and shape how tight a fit the threads areand the metals used. Note that AN threads are different for bolts and fittings. In bolts the number refers to the diameter of the bolt whereas in a fitting it refers to the OD of the tube and thereby have different threads. Mixing them can cause leakage at the flare. From Wikipedia, the free encyclopedia. Archived from the original PDF on 14 July Retrieved 10 July Retrieved 21 March An line sizes to Win. Motorbooks International. Namespaces Article Talk. Views Read Edit View history.

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This article describes the different types of fittings that are commonly used for high-end racing and street performance applications. The fittings we will discuss are Adapter Fittings also called Standard, or Union , Port Fittings, and Pipe Fittings, as well as thread types and size standards associated with each. Straight Thread — With straight thread the threads run parallel. Port Fittings and Adapter fittings using straight thread require use of an O-ring Boss Seal technique to seal against leakage.

One end the port end of the fitting can be described as a male open-ended cylinder with Tapered Thread also called Pipe Thread on the outer diameter. Russell Performance Technical Support Please take note that this page is not set to full scale.

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AN Fittings and Stainless Steel Lines: What size are they, really? Sometimes we encounter some confusion about the AN specification. This article will explain. The line drawings below depict actual sizes of the various common AN thread sizes by dash number. Lay your fitting over the appropriate drawing to determine. Aeromotive Guidelines for choosing AN versus NPT and understanding port threads, adaptor fittings, and line sizes.

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