GN Solids Control makes different sizes of decanter centrifuge:
1) The 9 inch mini size decanter centrifuge: GNLW223, GNLW224 series. It is mainly for waste water and mining industry separation.
2) The 14 inch most popular size decanter centrifuge: GNLW363 series. The size is widely used in oil and gas drilling and for industry separation.
3) The 18 inch big bowl centrifuge for bigger capacity: GNLW452 series low speed big bowl and GNLW453 series high speed centrifuge.
4) The 22 inch big bowl centrifuge for waste management and industry waste application: GNLW553 and GNLW554 series
5) The largest size GN Solids Control does make is 30 inch: GNLW764 series.
GN Solids Control offers different design for centrifuge driving systems: fixed speed motor drive system, variable frequency drive system (VFD centrifuge), and full hydraulic drive system (FHD centrifuge). No matter what kind of driving system, GN Solids Control will include the pump driving control inside the centrifuge control panels.
But sometimes, clients want to use their existing pumps, if they use the pump control inside GN centrifuge control system, it will be fine. In some cases, clients use their old pump control panel with their own pump. In will cause overload of the centrifuge. It is not recommended. Why the centrifuge feeding must be inside the centrifuge control panel?
There is safety protection inside the centrifuge control system. If the pump control is related to the centrifuge control (main motor drive and back drive motor), in case the centrifuge is overload, and the current will be increased. When the current increase over the setup data, centrifuge control system will adjust its control: to reduce the pump speed to reduce the feeding. When the pump feeding capacity to centrifuge is smaller, the current increasing will be reduced. When the current drop down to a setup safety data, the centrifuge control system will increase the pump speed to increase pump feeding, the centrifuge can handle a bigger capacity that it can do.
If clients want to use their own pump to feed the centrifuge, it must be for sure to relate and interlock their pump control to the centrifuge control. It can avoid overload and protect the centrifuge well.