KAISHAN VJ Variable Frequency Screw Compressor
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Common characteristics between VJ true variable frequency series screw compressor and ordinary variable frequency compressors are as follows:

VJ true variable frequency series screw compressor can maintain stable pressure in the pipe network system in a most precisely way; it is preferably used in areas where air flow varies frequently and air using equipment which is sensitive to pressure change.

Differences between VJ true variable frequency series and ordinary variable frequency compressors are:

A). Displacement of VJ series can be higher than rated displacement. If you turn the discharge pressure down, it will transform surplus power to the power necessary for generating larger displacement. For example, if the discharge pressure of VJ-10/8 compressor is changed from 8 bar to 7 bar, its maximum displacement will be increased from 10 m3 to 10.9 m3.

B). VJ series allows operation under the working condition higher than the rated discharge pressure, but at this moment, its maximum displacement will decrease. Then it will transform the power originally used for producing partial displacement to the power for obtaining higher pressure. For example, if the discharge pressure of VJ-10/8 compressor is changed from 8 bar to 10 bar, its maximum displacement will be decreased from 10 m3 to 8.7 m3.

VJ series variable frequency compressor can reliable double control of displacement and discharge pressure and connect these two mutually independent parameters to expand the range application.

KAISHAN VJ Variable Frequency Screw Compressor
KAISHAN VJ Variable Frequency Screw Compressor
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