@ gerhardl:
That is exactly what I began with ;-)
But even with this, I was hurting myself to the same thing again and again.
And thanks for the luck :-)
Hi all.
My question will certainly look like evident for some people.
I'm currently beginning design of subsea valves.
I read several standards, but there is something I can't fix about the class pressure.
What I retained is that the design has to follow a pressure class as any other valve...
Hello all.
I hope I post this message at the right place...
I am currently benchmarking to get a foot on the subsea valves market.
My boss would like to promote this new project.
I found some general informations I needed (constructors, standards like the new API 6DSS,...),
but I'd like to...
It is probably due to the design of the valve, which prescribe no leakage in a particular direction.
The pressure of the fluid may be used to push down the disc against the seat, to have a zero leakage capability in that direction, which would not be true if the fluid tends to take the disc...
As far as I know, the standards are effectively not that clear.
In fact, in my industry, we use rules of thumb to calculate this length in cryogenic applications. Some basic calculations were done in R&D some years ago, and then in function of fluid used, size of the valve and materials, we...
Maybe I should add some details, in order to have some directions where to go:
The general test is the following: I add pipes at the inlet and outlet of my CAD model (2 times the ND at the inlet and 6 times the ND at the outlet, following ISA S75-02), then I apply some pressure at the inlet...
Hello all,
I'm new on this forum, and quite new also in the valve world.
Since last july, I (try to) handle a Fluid Finite Elements Analysis software to do flow calculations through the valves I design. In particular I'd like to use it to determine CV.
But the more I try to understand, the...