restirction Orifice Sizing

[Bollywood]

need to size restriction orifice for liquid service (water with some methanol). Upstream presure 500 psig/45 F, 62 lb/CF. Downstream pressure 0 to 50 psig. Is multiple restriction orificea way to go? How many? Took total DP thru a single RO, but beta was .14. Any suggestion?

 

[Latexman]

See the references katmar gave in this thread378-125921.

Good luck,
Latexman

 

[CJKruger]

Bollywood, my view is the following:

- Provided that the orifice hole is big enough (so it doesn't block) and thick enough (so it doesn't bend), then you only need one orifice.

- Vaporization in relatively thin orifices are unlikely. And even if it does occur to a small degree, not a significant problem.

 

[hacksaw]

You don't want a thin plate RO for this service.

Contact one of your pump suppliers, most have a good solution to this problem.

 

[786392]

Presumably standard 600 psi rated pressure RO should prove good!
Subject to smaller diameter Pipeline, as High Velocity erosion is usual, thus useful life will be limited accordingly.


Best Regards
Qalander(Chem)