GENTEC® 210 / B220 series semi-automatic system is designed for a continuous supply of high purity gases. It consists of a primary bank and a reserve bank of cylinders. Because of the differential pressure between the primary and reserve banks, the changeover takes place automatically when the primary bank is depleted to provide a continuous supply of gas from the reserve bank. However, in order to activate the next switchover, the regulators on both banks need to be readjusted upon changing the cylinders using the arrow indicator. Stable pressure output is provided by the second pressure regulator on the main line.

GENTEC^® P2400 Series Speciality Gas Control Panel is a dual bank semi-automatic changeover system, providing a continuous supply without interrupting the system during cylinders(s) replacement. P2400 Series is designed with dual pressure reduction to provide study outlet pressure and is applicable for purity gas usage in research laboratories, clean rooms and gas analyzing.

GENTEC^® PD3400 Series Specialty Gas Control Panel is a Semi-Automatic Changeover System which provides for continuous gas supply without interrupting the system during cylinder changeout. When the primary bank is nearly depleted, a changeover will occur. The reserve bank will then begin to supply gas to the alternate cylinder. The inlet valve on each bank provides the user additional safety while replacing the cylinder(s) on the empty bank before the next changeover occurs. The HP vent valves may be used to purge the lines of any residual contamination. The line regulator executes a second stage pressure reduction, providing a consistent outlet pressure and flow. Available in both Brass and Stainless Steel.