Hi,
We do not use one standard internally therefore we have a place for such discussion unfortunately.
I just got a feedback that it is totally stupid which i I belive it is not and trying to justify the usage of it.
I've seen plenty of drawings with the tolerance like this therefore I...
Hi,
Can someone help me solve onging discussion wihin Engineering dept. I enclosed the example of Concentricity marked on the thread realted to two smaller diameters located before the thread itself.
I've been trying to find a standard which expressly explains if its according to GD&T rules...
HI all,
I am currently looking for a literature related to the Ball Valve design ( metal to metal & soft seated) ? But I am actually as well interested in Gate, Choke valves
I've found so far this link to the calculation sheet, which is actually brilliant -...
It's my first post so sorry for all missing information. Couldn't find the option to edit my previous post so I will just add some info below.
Test temperature is - Room tempreature, around 21C.
Test pressure for seats is 1034 barg, but it's start leaking at 100 barg.
Valve type: Rotary Gate...
HI,
I've been having a problem with gas tight valve. Two rotary parts. The surface on the cooperating parts Is Ra 0.03 Rz 0.7 - I thinkt hat it's too rough. Everything seems ok with water, but when we start testing it at 1000 bar Nitrogen, starts bubbling. I fiugred out now two solutions:
1)...
