Pneumatic control & sensor components help

[lnphoenix]

I am tasked to build an in house inflation system. It seems that I get lost in finding required components for my system using Google and the net so I need your expert's help to direct me to vendor & parts.

I need to regulate & monitor a compressed air supply to a constant 12 SCFM and also to regulate & monitor the pressure applied to the unit under test (constant 12 psi) in real time automatically. I'm using National Instruments LabWindows & their DAQ module to handle the user interface. Can you expert in control system to recommend me vendors and components? (integrated components with sensor & control preferred but not required)

Thanks
Lanny

 

[JimCasey]

Sorry I haven't checked in on this thread recently.
For those who could not find the data sheet:

http://www.brooksinstrument.com/pdfs/datasheets/DS-VA-1358-eng.pdf

Yes, the knob is set manually. Set it at 12 and forget it. The 8910 is a separate device, sold tubed to the meter. It holds a constant flow as the pressure changes.

As I envision the system: Regulate the pressure to 12 psi.
Run the flow through a slow opening solenoid valve. Thenn the flow goes through the brooks flowmeter. You want the solenoid not to pop open too quickly because when it first begins to open, the orifice in the flow controller will be wide-open. Hit it too hard and you could shoot the rotameter float against the upper stop and make it crack the glass.