Not intentionally, i tried powering both and it actually has some sort of protection inside of it.. since it didn't blew up in my face. I guess paying extra was worth it.
Now, using switch in my case is not possible. I need Arduino to dynamically open or close the valve based on tempatures I measure with some of my DS18B20's
so the PNP transistors it is.. Oh well, at least the valve is still working