VSA/ PNEUMATIC VALVE

l There are two kinds of medium tightness, which is the time required for the medium of a certain        mass or volume to pass through the leakage channel, and the second is the time required for            the pressure of the fluid system to change.

l VSA gas control valves are especially suitable for large flow, high pressure drop and leakage less        occasions.

l The flow characteristics of VSA valve are linear, equal percentage and parabolic

l The flow characteristic is the relationship between the relative flow of medium through the                regulator valve and its opening degree under the condition that the pressure difference                    between  the two ends of the valve remains constant.