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> UNITED STATES ARMY PIPE SPECIFICATION
>
>
>
> 1. All pipe is to be made of a long hole, surrounded by metal or plastic
> centered around the hole.
>
>
>
> 2. All pipe is to be hollow throughout the entire length -- do not use
> holes of different length than the pipe.
>
>
>
> 3. The I.D. [Inside Diameter] of all pipe must not exceed the O.D.
> [Outside Diameter] - otherwise the hole will be on the outside.
>
>
>
> 4. All pipe is to be supplied with nothing in the hole, so that water,
> steam or other stuff can be put in at a later date.
>
>
>
> 5. All pipe should be supplied without rust; this can more readily
> applied at the job site. NOTE: Some vendors are now able to supply
> pre-rusted pipes. If available in your area, this product is a
> recommended thing, as it will save a great deal of time at the job site.
>
>
>
> 6. All pipe over 500 ft [150m] in length must clearly have the have the
> words "LONG PIPE" painted on at each end so the contractor will know
> it's a long pipe.
>
>
>
> 7. Pipe over 2 miles [3.2Kn] in length must have the words "LONG PIPE"
> painted in the middle so that the contractor will not have to walk the
> entire length of the pipe to determine whether or not it is a long pipe
> or a short pipe.
>
>
>
> 8. All pipe over 6 ft [1.83m] in diameter must have the words "LARGE
> PIPE" painted on it so that the contractor will not mistake it for a
> small pipe.
>
>
>
> 9. Flanges must be used on all pipe. Flanges must have holes for bolts,
> quite separate from the big hole in the middle.
>
>
>
> 10. When ordering 90 degree or 30 degree elbows, be sure to specify
> right hand or left hand, other wise you will be going the wrong way.
>
>
>
> 11. Be sure to specify to your vendor whether you want level, uphill or
> downhill pipe. If you use downhill pipe for going uphill the product
> will flow the wrong way.
>
>
>
> 12. All coupling should have either right hand or left hand thread, but
> do not mix the threads, otherwise, as the coupling is being screwed on
> one pipe, it's being screwed off the other.
>
>
>
> 13. All pipes shorter than 1/8" [3mm] are uneconomical in use, requiring
> many joints. They are generally known as washers.
>
>
>
> 14. Joints in pipes for water must be water tight. Those in pipes for
> compressed air however need only be air tight.
>
>
>
> 15. Lengths of pipe may we welded or soldered together. This method is
> not recommended for concrete or earthen ware pipes.
>
>
>
> 16. Other commodities are often confused with pipes. These include:
> conduit, tube, tunnel and drain. Use only genuine pipe.
>
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>
> Jeff
> --
> Jeffry Wisnia
>
> (W1BSV + Brass Rat '57 EE)
>
> "Truth exists; only falsehood has to be invented."