Hi,
We have a 60" Larner Johnson valve mounted in a 20 meters pipe from free discharge.
Water flow (20m3/s).
Head Pressure 6 bar.
When can only open a 30% !!
We think that the actuator can not win the vacuum that water flow generates outlet the valve.
Outlet the valve there are some...
Hello,
In my machine, atmosphere air goes into my vacuum system through some holes.
Trying to apply the following formula, I would like to know where I can find the K coefficient.
h = K * Q2
h: pressure drop
Q: flow
K: Constant flow
The orice is 2 mm diameter, in a 3 mm thikness wall...
I have been studying the vacuum pressure capacity of a fan at different room temperatures (15 to 45 C deg).
As it was supposed, at higher room temperature I had less vacuum because the air has lower density.
The corrector factor that I use to link pressure and temperature is...
