Establishing Vacuum

The Establishing Vacuum Calculator provides an estimate of the time required to reach a user-defined pressure between the two glass panes of a VIG. This is specifically for a VIG design where a surface pump-out port is used. The initial pressure in the VIG gap is assumed to be atmospheric pressure. The detail of the calculation can be found in Background Theory can be found here.

Results:

Press Calculate to see the results

Parameter Value

Input Parameters:

Glass panes

Pane length [mm]:

Gap between the panes [mm]:

Tube diameter [mm]:

Tube length [mm]:

Distance from the edge, X-axis [mm]:

Distance from the edge, Y-axis [mm]:

Cavity depth [mm]:

Cavity diameter [mm]:

Temperature [oC]:

Pressure [Torr]: