Vacuum valves are used when a vacuum must be maintained in a closed system. Vacuum valves are used to control gas flow into a chamber, isolate, vent, provide relief or control conductance. Gate, ...

The sensing element communicates this change in force to the control element.In gas pressure regulators, the control element is the valve that accomplishes the reduction of inlet pressure to outlet ...

the requirement to be able to measure and control extremely low gas mass flow rates has become very important. With advanced sensor technology and a special valve orifice design, MicroTrak ...