In conversations ive had with welding inspectors they've usually cautioned me against radiographic testing of fillet welds. Apparently its sensitive to false positives. Dye penetrant or MPI are options, but obviously they only show surface defects. If volumetric testing is a must the ultrasonic...
If you dont want to set it into the concrete then just use baseplates with chemical anchors. And u bolts are fine for pipes where you dont have large temperature differences.
Just dont go and use u bolts on condensate, steam or thermal oil lines. You are going to have a bad day.
Supports are...
There are guidelines for the distance between supports, but it varies with the size of the pipe. Just google max distance between piping supports and youll get plenty of suggestions.
As to what pipe to use. The kind of pipe we use here where i live is carbon steel medium black. I have an order...
Are you sure its your condensate piping that is undersized and not the steamtraps? What kind of steam traps do you have and have they been placed at strategic points. More importantly, when last did you do a steam trap audit, i bet half of them arent working anymore. Like if you have a spot...
Thanks, for all the replies. This is certainly enough to get something done.
@Zelgar: Settling basin design is definitely bearing better fruit than anything else I've tried so far.
@1503-44: stokes settling definitely got me some good results. The only problem is just trying to figure out what...
Because holes in the intermediate walls can get blocked. I suppose if the sandtrap is being cleaned daily this probably not as big of an issue. The ones that ive seen have usually had progressively shorter walls.
Also the guys that do the cleaning are equiped with shovels. Shovel doesnt really...
Sandtrap design
Does anybody have any type of guideline for the design of sandtraps? Much like what is pictured:
Perhaps flowrate and sand particle size and level of entrainment can be inputs and then various dimensions of the trap can be outputs. Maybe it can be very sophisticated, maybe it...
@orange_kun
if he gives you all that information, what are you planning to do with it? if you have a source that utilizes that information please share it. it sounds very informative. Shigley perhaps?
we made fuel tanks for military vehicles,they were v shaped to conform to the bottom of the vehicle. they were rather large and thus were made from 6mm aluminium plate. why werent they made of stainless steel? maybe cause of weight savings, maybe because they were cheaper. this application was...
you do get centrifugal compressors, but their construction is different. Usually with nozzles etc built into the fan casing etc etc etc.
that is a fan. i see now reason why you cant use it to blow air, like a giant garden vacuum...
i dont think its going to be easy to carry around...
Yeah, I missed the GRE part. Was reading a bit too fast. Yeah, you got yourself an interesting situation...If there is no give in the pipe then you might have to send the valve back or get a new spoolpiece made on either side of the EN1092 flanged valve...
on the spoolpiece that goes from 6" to 4", did they really weld the 4" asme flange directly onto the reducer? often they will put a short piece of pipe on to make it easier to put the bolts in. see below.
if that was the case you can cut that short piece of pipe off and weld a replacement...
swop the position of the flowmeter and the non return valve that i circled in the picture and make sure there isbat least 3-4 piplpe diameters worth of distance between the flowmeter and the non return valve that has now been placed downstream from it. you can always double check that 3-4...
instead of making the groove deeper, maybe drill a hole in the shearpin instead. then you"might" even be able to keep the groove dimension close to what it was before.
the shearpins we use on boiler stokers are drillled in this way, thats where i got the idea.
I can vaguely remember having to calculate the volumetric increase in pressure of tge vessel as well as the volumetric shrinkage of the water to estimate the amount of water to add to an already full vessel to do a hydrotest up to a certain pressure.
It was a practical we did with a flanged...
Normally a eye bolt that is rated for lifting will have the rated load printed on it in some way. something like WLL 1/4 or something like that where 1/4 means quarter tonne. If it doesn't have a clear rating like that you shouldn't use it for lifting and most safety officers will chase you off...
