<<<why anyone would deliberately select a raised face flange over a flat face flange if they are tying into a flat face flange>>>
Availability? Price? Necessity, or at least perceived necessity (e.g. they can get the item quickly, or off the shelf with raised face, but have to wait for flat)...
As to question concerning "cushions between steel and concrete", Mr. Russell Barnard of ARMCO Steel delivered a paper at the 1946 AWWA Annual Convention on the development of steel water pipe standards (that was reprinted as a stand alone pamphlet in 1948). This paper/reprint referred to...
<<<not technical enough to count as pdh's>>>???
Many states are not only approving e.g. ethics training for pdh's, but even requiring same specifically/regularly. Is this wrong because same deals more with right and wrong than "technical"??
Aspects of confined space training are technical, and...
<<<I am not a lawyer, but for the above quoted state could you prove that it directly benefits the health, safety, or welfare of the public?>>>
IMO (for whatever that is worth) a whole lot of folks and perhaps even the "public" can benefit from confined space training, and various sorts of...
The word "adapter" or adaptor is (IMHO) a sort of generic or proprietary device term, that does however imply a conversion of a factory or cut pipe spigot end to an in some configuration simulated flanged end (e.g. to allow a flanged piping or valve etc. item to be inserted into the line, and/or...
The drawing attached to the 1st post of the OP earlier showed what appeared to be a welded steel pipeline connecting two structures. There appeared however to be four potential sort of "anchor points", one at each structure as well as piers supporting the line aboveground several feet outside...
While it took some doing, I found a version of at least the second part of the video with quite clear audio (from a speaker who looked strikingly like now departed Glenn Ford!) at https://www.youtube.com/watch?v=-w2ROUiXh1Q. I guess these clips thus may well be from an old "Dowell" safety...
If you decide not to go with the plastic option, another product/system with greater strength, that can handle UV and quite high water or air temperatures without reduction in strength or stiffness, and that can much reduce support spacing and thermal expansion, contraction and construction...
Thanks, Don(there is an old saying in research to the effect that a test may be worth a good many opinions). As to the observed conditions of this break in the photo, intersecting cylinder-to cylinder e.g. "tee" pressure connections are an interesting study, with I suspect untold numbers of...
oops meant to say, "...from the standpoint of maximum localized stress due to vertical (weight induced) loads or accelerations there is likely little, if anything, gained by going from 150 to 180 degree saddle angles."
While bimr makes an interesting point concerning lateral loads, so does EdStainless. I would only add I am aware of some research with flexible pipes that fit saddles reasonably well that indicates that at least from the standpoint of vertical (weight induced) loads or accelerations there is...
