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Stanley A Meyer Hydrogen Gas 

Quenching Tubes 

(Glass Optical Wave guides)Photonic+Crystal+tube



Stanley A  Meyer Hydrogen HHO Quenchig Tubes
Stanley Meyer Quenching tube Picture d.p
Stanley Meyer Quenching Tube ss.png
Stanley A  Meyer Hydrogen HHO Quenchig Tubes
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Radius of bend become important as when bending the light quality will be altered 

and the risk for cross flash increased 

Stanley A Meyer Hydogen Quenching Tubes
Stanlely A Meyer Hydrogen Quenching Tubes
Hydrogen Hot Rod Builder

example questions you will get

Do you plan to transmit light in your fiber?  no gas inert

Which wavelength?  mostly gas not vitel but 630 nm 

Do you have any specifications in terms of loss and any other optical parameters of interest?   no 630 nm 

Any specification for the bending radius? compound materials choice effect bending


Can you also share the tolerances for the different diameters?  +/- 1 um hollow air cores  and or +/_ 0.005 inch on outer

What would be the length of the cable needed? spool and we splice with your tools

Can you share the application by any chance? gas test bed 

Useful Terms 

  • Capillaries 

  • Hollow core 

  • Multi Core 

  • Polymer 

  • Splice Analysis 

  • Fibre light Loss

Quenching Tubes and Ceramic Arrestors 

As Many holes as possible around 3/8" OD or 14"OD or bigger

Multibore / Multi Lumen Tube Works as Stated Tested

and the holes need to be smaller than .015 no bigger than .025 OD..Polyurethane, However, Clear Vinyl tubing is also a possibility. It looks like it's moiled around set of 5 "multi-lumen" bored tubes inside which could be like FEP/LDPE white tubing.

Stanley Meyers Quenching disk works like stated. Tested 

Now we need to find ceramic ones and also start the real tests!     

.025" around 60 microns and .0015 is about 30 microns  0.015" (stans) = 381 micron

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Stanley A Meyer Quenching Tube Fittings

How did Stanley A Meyer Connect his Quenching tube of different diameters to the cell and injection systems ?

We Know he may have used flexible multi bore Fiber optic tube

in Sizes  nominal OD 1/4"         =hose inside diameter 0.22 to 0.25"   = 4 AN      =  8mm

Quench fitting part number stanley meyer
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Stanley Meyer Quenching tube and Cell In
Training Slide fitting quench.png

Summary today we need 
1 Brand options part number for the attach an fitting
so far we need 1/4 OD  fitting  6mm 

note we can go bigger but this is close to original 3/8 optional 

Stainless Steel Swagelok Tube Fitting, Male Connector, 1/4 in. Tube OD x 1/4 in. Male NPT
note check it has ferrule in kit  
part Part No. SS-400-1-4

6mm vesion mean five outter can be 6mm

Thermocouple Connector


Stanley Meyer Quenching tube End picture
Queching tube Stanley A Meyer

YEP...10 thou is 254 microns...
that is the size of each of the tiny holes in the tube..
A flow rate will let you calculate how many holes you need for a particular application,or more precisely, what MAXIMUM amount each tube can pass..
it's the size of the holes I've been experimenting with..
Max got flashback with 12 thou multihole but no flashback with 12 thou single hole..more work to be done..also, like he pointed out, tubes may behave different to discs...don't know yet..Cheers...Paul.

Stanley Meyer Quenching Tubing.png
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Stanley Meyer Quenching Tube off cell

The Above Picture show tube in the ferrule

we know believe this is fibre optic multi bore tubing 

Stanley Meyer Quenching tube Picture
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Can you buy it now ?


We are working hard on it we expect to post in stages ,


Stage 1 

Will be in bigger rolls of tube only as new production

We will post price shortly.

We expect testing and support.


We will trail various fittings at same time in 2 mm and 4 mm


Stage 2 can buy any length and fitting will be off shelf easy!!


Price indication working on the various material type advise soon


in the mean time please share our pages every where partiality to lpg and hot rodder website groups clubs 

"AN" Thread Sizes (Army/Navy Threads)

Commonly used on Nitrous Oxide systems. The sizing chart and numbering system was developed during World War II where the armed forces used Nitrous Oxide systems to boost the power output of aircraft engines.

AN sizes, originally developed for use by the U.S. Armed forces ("A" for army and "N" for navy), describe the outside diameter (O.D.) of tubing in 1/16-inch increments. For example, an AN 2 fitting will fit a tube with an O.D. of 2/16", or 1/8", while an AN 8 fitting will fit a tube with an O.D. of 8/16", or 1/2". Because the actual thickness of tube walls can vary from brand to brand, the inside diameter of a tube is not used as a reference. You will also find the dash (-) symbol or the word "dash" itself used in conjunction with AN sizes. A "dash six" fitting translates to AN-6.

Each AN fitting has an established thread sizing. The following chart shows the relationship between AN size, tube O.D., and SAE thread size:

Stanley Meyer Queching Tube Sizes
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"NPT" Thread Sizes (National Pipe Taper)

NPT sizes are the most commonly used fitting sizes for general plumbing, piping, and tubing use; not quite as popular as AN for automotive use, but still very common.


While AN fittings depend on the outside diameter of a tube for sizing, NPT fittings depend on the interior diameter (I.D.) of the fitting itself.


The following chart shows the each size's thread-per-inch count, the I.D. of the fitting, and the AN fitting size with the closest-matching I.D.(inside dimension).

Stanley Meyer Queching Tube Sizes
Stanley Meyer Queching Tube Sizes
Hydrogen Hot Rod Builder

AN Fitting and Hose Sizes

The Reasons Behind the Numbers


Ordering AN plumbing fittings can be confusing because the nomenclature does not directly translate into a thread size. Fortunately, each AN size will always correlate with one specific fitting size. There are no exceptions, so there is no guesswork. Measure the thread OD and pitch, and you know the fitting size.



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. Sizes for rigid tubes were already standardized, with sizes called out by tubing OD (3/16", 1/2", etc). AN hose sizes were designed to match the ID sizes of these rigid tubes. Can you see the confusion starting? Tubing is known by OD, but AN hoses are sized according to the tubing ID -- not the hose OD or even the hose ID.

AN hose sizes are based on the nominal OD of the tubing with a matching ID. It sounds convoluted, but it really is a simple idea that achieves a logical goal. If hoses were called out using the hose OD (following the same system used for tubing), the ID of a 3/8" hose would be much smaller than the ID of a 3/8" tube. On top of that, different hose types have different wall thicknesses. That system 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. For example, 8AN hose has the same ID as a 1/2" nominal tube (8/16 = 1/2). 3AN hose has the same ID as a 3/16" tube. This means that 6AN hose will not introduce any appreciable flow restriction in a fuel system designed around 3/8" OD rigid tubing.

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.g., AN4 bolts / 6AN hose).

The Bad News

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. One glaring mismatch is the popularity of 5/16" (8mm) fuel hose on automobiles. While a specification exists for 5AN hose and fittings, it is exceedingly rare in the aircraft industry. Even manufacturers specializing in AN-style fittings strictly for motorsports tend to skip over the 5AN size for the most part.

The Good News

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).



Male Thread Size     AN Size*          Equivalent Tube Size (Nominal OD)           Hose ID      **Male fitting ID

3/8-24                          3AN                                    3/16"                                           0.13" **          0.12"

7/16-20                        4AN                                     1/4"                                              0.22"            0.17"

9/16-18                        6AN                                     3/8"                                              0.34"            0.30"

3/4-16                          8AN                                     1/2"                                              0.44"            0.39"

7/8-14                          10AN                                   5/8"                                              0.56"            0.48"

1 1/16-12                     12AN                                   3/4"                                             0.69"             0.61"

1 5/16-12                     16AN                                    1"                                              0.88"              0.84"

* Note that these are the same as SAE O-Ring Port sizes, but O-Ring Port size numbers are normally called out as dash numbers (-4, -6, etc).

** Conventional rubber-lined stainless braided hose, except 3AN which is PTFE-lined.


Tip: If you don't have a proper measuring tool handy, open-end wrenches make great "go-no go" gauges in a pinch! If a 7/16" wrench slips over the threads but a 3/8" wrench doesn't, you have a 4AN fitting.



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  • Here is a Website for ceramic discs.  I've not contacted them for their prices or anything.
    (Refractron Technologies Corp. 5750 Stuart Avenue Newark, NY 14513-9798 phone: (315) 331-6222 fax: (315) 331-7254

  • ============
    Another name for "multi-bore" is "multi-lumen"

    according to Zeus Inc.
    "The numerous lumens, or 'passages' that can be designed into Zeus Multi-Lumen tubing, allow design engineers to push the creative envelope and expand the capabilities of their products."
    .015-.025" holes with a 3/8" line??? of 3/8" OD... 

  • good stuff!!! 
    These guys ( have a sample request form.  I've no idea if they'll even do what we want.  Worth a shot even if it is a small length of tubing.  What I've uncovered is that... nearly all "multi-lumen" tubing is a custom order.


  • What if they're willing to make a few feet of your custom order?  would you still be able to test it's viability? (I.E. can you use a small portion to test it as a "flashback arrestor")

  • Some other links to try. (sample request)

  • This is a decent site for rough info on different types of tubing and uses.


  • ===============

    ul. Mexican 6 lok. 102 
    03-948 Warsaw 
    KRS: 0000348419 
    REGON: 142233406 
    Tax Identification Number : 951 230 35 53

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Stanley A Meyer Quenching Tubes
Stanley A Meyer Quenching Tubes
Stanley A Meyer Quenching Tubes
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