To comment sensible on any valve, you would normally like to have most possible of following information:
Fluid?
Clean fluid?
Temperature?
Pressure? (fore, after. differential, variations)?
Flow, high, low, normal for each phase.
On/off or regulation, if regulation specify variations
Approx. size/range of valves
Valce pressure class , type of end/valve class.
Any particular form, art or brand of valve (in addition to angle)
Any other significant operational or flow data?
If necessary operatinal data (For actuatorr selection)
etc. etc.
An angle valve is suitable for 2-phase flow because if you fill the pipe halfway with water, the other half is filled with air, and you have 2-phase flow.
If you connect 220V-3 phase electric to the pipe, then you are allowed to multiply the 3-phase electric to the 2-phase fluid to get 6-phase flow.