R134a freon can with a valve in the top?

[61_FL_Apache]

I picked up a couple of cans of this and it has a self-sealing valve in the top. I tried to use one with my old school can piecer and you can hear it open the valve, but no freon comes out.

Is there a different tool for this?

I need to get a side can tap next.. It does not discriminate. It will poke a hole in anything

Thanks for the help!