Quick coupling "Aeroquip" Pressure Loss

[G4uss]

Hi all,

I'm tryng to calculate the pressure drop due to a quick coupling (Aeroquip) along an Helium high pressure line.
I have contacted the supplier, but he has not any information concerning the pressure drop due to their device; it gives me only data about pressure drop obtained with Mineral Oil.
Does anyone has some tips to calculate the local pressure drop?

Thank you very much

Fred

 

[dcasto]

You can use the mineral oil to calculate equivalent lenght of the fitting. Look at Crane 410 on equivalent lenght.

 

[dcasto]

Or get even more detailed and do Cv for the fitting.

 

[G4uss]

My dubt is: Can i use an oil to calculate an equivalent lenght, while in the real application the quick coupling is used with a gas (helium @20bar) ?


Thank you in advance

p.s. I don't have the Crane 401

Fred