Thanks for the replies, for some reason I'm not getting email notifications despite it being turned on.
To address a few of the questions, the 4.02 bore came 4" SCH40 weld neck flanges that I was originally using. I recently discovered long weld neck flanges and maybe I could take a 4" LWNF...
Located in the US. Pipe and flanges are readily available here. Using standard weld neck flagnes, I'd have to weld bosses on to the tapered part of the weld neck in order to get the proper instrument spacing within the same overall length. Not sure if that is allowed.
I'm designing a fluids test loop in a laboratory and need to design and have fabricated a short pipe spool with flanged ends. I initially modeled something with a WN flanges and a short section of pipe but because I needed to fit in half a dozen instrument taps and a NPT branch connection...
As a followup to [thread292-471719], we have existing a settling tank fabricated from pipe to B31.1 with an 18" flanged end. As discussed in the old thread, I'm designing a new exit for the settling tank and arrived at 18x6 reducing weld neck flange welded to 6" stub end to connect to the new...
I ended up switching to specifying a weld neck reducing 18x6 flange and a lap joint flange with the bellmouth welded to the interior side of the flange. Cuts the number of welds from 5 to 2 and eliminates the question of how to properly weld the SO flange.
To answer Littleinch, its a hydraulic...
In my head I was stuck in piping mode and I didn't think of the 18" being the boundary between B31 and BPVC. I'll look through VIII-1 discussion on welding nozzles, perhaps UG-39 holds the key...
I have a settling tank with 18" Class 150 flange on one end. I've been asked to design a 6" bell-mouth exit for the settling tank through the flange. I couldn't get it to insert inline, but I've attached a sketch of the pipe spool concept I've mocked up. The site requires that it be designed...
I'm in Pennsylvania. I think the designers are starting to relax on requirements and allow flanges welded to a B16.9 (butt weld) reducer so hopefully this problem will go away soon!
I was asked to design and procure a seamless flanged 150# class 8x6" reducer per B16.5 and B31.1 in stainless for a project. A specific taper angle was also specified. I went to see what's commercially available as a starting point and I can't seem to find anyone making seamless flanged...
A colleague of mine sent this to me--the idea combines a helium reactor with a combined cycle fossil plant and claims 50% efficiency.
An interesting idea, who knows if it will take off...
I also second rcchap... I got my start in a systems engineering group at a two-unit 70s vintage nuclear site and the experience gained was invaluable. After a few years I joined a large engineering/construction company to get involved more with the design side of the industry. Having spent a...
I'm guessing too that they mean water column... check out the conversion here:
http://www.onlineconversion.com/pressure.htm
24 meter of head = 78.72 foot of head
It might...I found an equation from nusselt that covers condensation inside tubes that I will work through on Monday. On the other hand, it might make for some good PE exam practice.
I chartered a sailboat with twin 75 hp diesels. Each one had a small hot water tank. The coolant from the engine passed through a coil in the water tank to heat it.
I didn't get a close enough look to notice whether sea water cooled the engine directly in a once through loop or if sea water...
