What are the set of NI instruments and software I would need to control a pinch valve system controller which has USB A-B port?

I need to be able to deliver solutions through a pinch valve system using a pulse protocol. This means the valve has to open with a certain delay and close after a specified time (square pulse). How can I accomplish this using the cheapest components? Can I do this using NI virtual bench and LaBVIEW?

Here is a link to the particular pinch valve system I am referring to:

http://www.autom8.com/valvelink.html

It has a USB A-B port.

Any help would be appreciated!