Small Solenoid valves

I'm looking for a small solenoid valve for a ant/beetle weight that can take reassembly high presure. (The Lego valves leak at higher presure)

Thanks

http://www.giantcod.co.uk/operated-swit ... 03734.html use a servo to operate it.
What I use.

Oh I didn't think of looking on giant cod for pneumatic parts... Thanks

you have to modify lego valves to operate at the higher pressure,