Recent content by MaHo12345

Sorry, let me specify: The entire setup is (from upstream to downstream): 1. Inlet at atmospheric conditions 2. Needle valve set such that the pressure is 16 mbar(abs) when proportional valve (3) is fully opened 3. Proportional valve, controlled with 0-10V DC 4. Scroll pump 5. Outlet at...

The fluid is air at room temperature. The pressure is negative (i.e. below atmosphere), that is why the scroll pump is connected downstream. As I understand, the flow decreases as the valve is closed (since it is not a hydraulic positive displacement pump with flow independent of pressure)...

Hi, I have a valve which is connected to a pipe on both sides. I measure the pressure upstream of the valve. Downstream of the valve is a screw pump. I control my valve using an analog voltage input between 0 and 10 volts. According to the datasheet, the relationship between the analog input...