please help me, i'm newbie

i have a project to control 12v dv valve with arduino. which becomes the problem of water that flowed through the valve is not swift. when it was given the pressure of a water pump with 12 watts of power. is there a solution?

I don't really understand what you want. Please choose a useful titles for your threads, "please help me"
is a given.

12v dv? Do you mean 12V dc?

What motor?

What valve?

Links please to all your hardware.

Get a bigger valve?

Post the schematic of your connections and data sheet for the valve if you want more help. What flow rate do you want (please specify a number).