Making an inflatable air system, and I require a regulator to go from a 3000 psi source to 50 psi. The regulator should not be adjustable and should also include some form of safety pressure relief. Also, it should be small is size and light, inlet and outlet sizes would be 1/4". Anyone have ideas to whom I could talk to about getting this sytem made. Quantities will ramp up to production levels after verification of system.