Feb 22

Among all the decanter centrifuges used for solids control and waste management systems for oil and gas drilling, they could be divided into big bowl centrifuges, medium sized decanter centrifuges and baby centrifuges. Per bowl rotating speeds, they could be divided as middle speed decanter centrifuges and high speed decanter centrifuges. Per their electric control system they are fixed speed and variable speed available.

Like GNLW363C series decanter centrifuges, GN has 4 models while 5 options available, they are highest configuration ones, for waste management use mostly, and economic standard ones. And for each configuration, end users could choose fixed speed or VFD control panel. For the economic standard option, GN has positive pressurized VFD control panel with PLC and normal VFD control panel for option.

centrifuge feeding pump

mono pump

What feeding pumps are used respectively or the decanter centrifuges per their control panels’ differences?

  1. For fixed speed control panel decanter centrifuges, you could use both the submersible slurry pump and the screw pump or called mono pump. In case of fixed speed decanter centrifuge, normally no need to change the speed and feeding capacity which is already set with a formula of centrifuge feeding speed and gearbox ratio and motor rotating speed, and etc. In order to change the feeding capacity when using the submersible slurry pump, extra liquid fed to the centrifuge could flow back via the overflow pipeline of the centrifuge. In case of the screw pump, the end user could install a mechanical devise on the screw pump as a manual valve. Such is shaped as a wheel and could be switched left or right in order to get a suitable feeding capacity.
  2. For the VFD controlled decanter centrifuges, the common and practical solution is always the mono pump or screw pump. The screw pump’s motor is connected with the control panel and on the other side of the motor is the gearbox connected with the pump rotating part. By changing the HZ via control panel, the directly connected screw pump would change the feeding speed and accordingly the feeding capacity.

written by shale shaker \\ tags: , , , , , , ,

Oct 13

As the top company of solids control and waste management systems and 1st API certified solids control manufacturer, GN is the only one who have designed and make it true of both vertical cuttings dryer and big bowl centrifuge.

Among all the available centrifuge models, GNLW363 is the most popular one. Because:

  1. GNLW363’s 14 inch diameter bowl is the most popular and practical size.
  2. GNLW363 could reach a high speed of 3200RPM.
  3. GNLW363 has the best materials.




And in order to enable this well performance decanter centrifuge with more applications, and also in order to cater the customers’ various requests, GN has designed several optional applications and accessories for GNLW363 Decanter centrifuge:

  1. For VFD GNLW363, some customers decided to order an extra fixed speed package as backup. This package includes a fixed speed control panel, a set of coupling. Because in some cases, the needed speed is clear and fixed speed control panel requires less space and less expertise personnel to operate.
  2. For fixed speed GNLW363, cause the designed speed is solo, in order to get more applications, the end users could order a extra or 2 extra sets of pulley and belt for the centrifuge to reach other speeds.
  3. Telescopic skid for decanter centrifuges, which can enhance the operating altitude of the decanter centrifuge for more possibilities at jobsites. Such could provide 2.2 meter and 3.3 meter as options.
  4. Container-sized frame for decanter centrifuge and pumps. In this situation, the GNLW363 decanter centrifuge and its feeding pump, always screw pump, could be fixed in a container-sized frame, easy to transported and lift.


All above mentioned options have been executed and proved practical, if you need more information, welcome to contact us or surf on our website.


written by shale shaker \\ tags: , , , , , , ,

Aug 23

Each year, GN Solids Control exported more than 150 sets of decanter centrifuges to all over the world, among which, GNLW363 can reach a number of 120 sets. Why?



1. Because of bowl inch? YES!

GNLW363 is 14inch bowl decanter centrifuge, this is the most popular size of bowl diameter world widely. Lots of famous companies who produce decanter centrifuges for oil and gas field all have this bowl diameter centrifuge available, like De***-D1000 and Sw*** 518 and etc.

2. Because of speed? YES!

GNLW363BG-VFD is high speed decanter centrifuge with rotating speed variable from 0 to 3900rpm. And the benefit for this is clear, different speed caters for different work, like low speed for separating larger particles, middle speed for separating weighted and valuable barite from drilling mud, and high speed for separating fine solids particles. Even it is suitable for dewatering unit.

3. Because of its high quality material? YES!

GNLW363BG-VFD was equipped with high quality materials, like tungsten carbon tiles for impeller protection and discharge port for solids. And for bowl material, it uses SS2205 stainless steel. Brighter and stronger body!

4. Becaue of updated design? YES!

Discharge port for solids are larger than last generation of GNLW363G-VFD, and liquid discharge ports are more easily to be adjusted for various levels. It is more user friendly in design.

5. What about VFD control panel? You bet on it, it’s best in China.

GN Solids Control is one of few manufacturer who use positive pressurized VFD control panel for its centrifuges. Comparing with mostly used flame proof control panel used by most Chinese suppliers, this control panel is much safer and more efficient.
If you would like to know more about us or our products, welcome to visit our website or directly take a plan to Beijing Airport, we are not far from there.


written by shale shaker \\ tags: , , , ,