Ausco Inc. offers absolute pressure valves with evacuated bellows. These valves can handle fluid/ambient temperatures ranging from -300°F to 450°F, pressure ratings ranging from 0 to 10,000 PSI, and flow rates up to 40 GPM. They are capable of maintaining absolute pressures ranging from sea level up to 50,000 foot altitudes. Body materials include corrosion resistant stainless steel, aluminum, and titanium.

Danfoss makes offers EV224B servo operated 2/2-way high pressure solenoid valves. These valves feature working pressure ratings up to 40 bar, medium temperatures up to 60°C, and a built-in pilot filter.