I'm looking for a microscale valve/controller but am having a hard time finding what I'm looking for or a supplier. It will be used for a propulsion system in a CubeSat and as such needs to be fairly small. It will need to be able to hold 1000-2000 psi and have a wide operating temperature range. Most suppliers I've explored so far either have the pressure threshold I'm looking for but the valves are not small enough or vice-versa. Any advice on a supplier or a valve in particular would be great.