The wording of the check valve spec reads:
"... Flange end-Raised Face per ASME B16.5, standard 3.2/6.3 Ra flange facing finish per ASME B46.1, ASME16.34, API594 ...."
The flange facing is required to be serrated raised face.
I am asking if the above spec clarifies the face to be serrated...
P&ID shows a global valve with one threaded plug with 1/8" drilled hole.
I am curious that what is the usage of plug with drilled hole in the piping?
Thanks
Client spec. requires Clamp shoes shall be used for thin wall pipe.
I am curious about :
1. Thin wall pipe means D/t>100 ? t is calculated excluding all the allowances?
2. What is the the physics requiring clamp with thin wall ?
Thanks in advance
Thanks for your input.
Based on your description, there are 3 options:
Option1 : Use that of 42"(largest) pipe thk uniformly, 0.375"
Option2: Break into 4 category, respectively 3/16",0.25",3/8",0.375"
Option3: Use the same as pipe wall thk
Most likely re-pad is with shoe so I will contact...
Piping shoe Reinforced Pad General Practice
SS pipe(cryogenic service) cold shoe has reinforced pad. Regarding the thk,I am wondering in field installation the Re-pad is cut from pipe or cut from separated plate.
If the re-pad is gonna cut from pipe I will specify its thk same as pipe...
What is the methods to use when lifting riser(vertical piping) in place? I mean pipe side.
I am dealing with SS pipe up to NPS 42".
The plan is to drill hole and bolt lifting lugs on pipe. Then cut the piece with hole after that.
Wonder to know if there is other method.
Thanks both for your valuable input.
I did not see any pertinent requirement in B31.3 and I am not so sure if there is other manufacture code that may cover this aspect. If so ,please inform here.
What is the rule for adding a reinforced pad when specify a pipe shoe?
Project requires 6” above using reinforced pad same thickness as pipe . I would like to know the reason behind that.
Usually stirling cycle detail explaned in any of thermodynamic book.
You mean the heat transfer in regenerator, heater or cooler?
Heater and cooler you can consult standard heat exchanger design.
Heat transfer in regenerator is tricky. Email me your question more detail if you want to talk...
Thanks pennpiper, though you did not provide much useful information.
We are engineering group for fabrication. We and our fabrication group do not have PDS or other software that can read PDS model. All we have here is AUTOCAD.
Though this job effort is small , I would prefer spending $35000...
WHat I want to add here is when I called a reseller , I was told isogen can be sold independently but at a higher price. What I need confirm is that ISOGEN can surely extract iso drawings totally with the absence of PDS. Is there any limitation you guys can think of?
BTW, if you know what file...
Thanks. But I contacted with alias. They said ISOGEN can only be sold with existing piping product, not sold standalone. We do not have any piping product. What we would like to do is to bring PDS model from a contract company and generate the iso. We would do this ourselves to better help the...
Hi, the software I need is to get iso drawing from PDS model, since we do not have PDS on site. No neccesary to be able to make changes to the model , just let us cutomize the iso output. I have been told isogen and spoolgen from alias, anyone has some experience on this issue? Thanks for sharing.