The construction of the Silli??Column allows stand-alone operation without the permanent action of a hydraulic jack on the piston (known as DAC principle). The packing procedure ensures that the final minimum length of the packed bed in the column is quickly reached and further reduction of the packed bed is not to be expected. The piston is firmly fixed in position by the action of the piston stop. When required, the column may be taken from the hydraulic stand and operated separately. Additional columns may then be packed on the hydraulic stand, using a quick connector (optional).
|