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Category Archives: Centrifugal Pump

Drilling fluid treatment equipment vacuum degasser China manufacturer

SB Series Centrifugal pump is used for transferring slurry or mud or water. It can be used as feeding pump for desander, desilter, or used as mixing pump for Jet Mud Mixer.

SB sand pumps are designed and engineered to handle abrasive, viscous and corrosive drilling fluids or industrial slurry. They have been proved and being in operation on land and offshore drilling rigs around the world. Please contact us for more details in order to make you customized.

centrifugal pumps

The sand pumps can be used in many Applications, such as Drilling mud mixing and shearing operations, desander and desilter feed pump, Drilling mud transfer pump Supercharging, mud cooling towers, wash down. Chemical, refinery, industrial, construction and agricultural applications.

sand pump

Our centrifugal pump, delivers improved performance, better longevity, and cost savings compared to other centrifugal pumps. The sand pumps’ high quality bearing configuration contributes to greater life expectancy through improved stability and lower vibration

12sets drilling fluid centrifugal pump shipped to Russian

Within the petroleum industry centrifugal pumps are necessary in order to process fluids especially hydrocarbons. To be as a professional solid control system supplier. DC Solid control shipped 12 sets cost-effective centrifugal pump to drilling site.

centrifugal pumps

DC centrifugal pumps (SB sand pumps) are designed and engineered to handle abrasive, viscous and corrosive drilling fluids or industrial slurry. They have been proved and being in operation on land and offshore drilling rigs around the world. Please contact us for more details in order to make you customized.

sand pump


Drilling mud mixing and shearing operations,
desander and desilter feed pump
Drilling mud transfer pump
Supercharging, mud cooling towers, wash down.
Chemical, refinery, industrial, construction and agricultural applications.

Contact us if you want to get more infor about it.

The SB series centrifugal pump for solid control system

SB series mud centrifugal pumps are mainly design for solids control circulating system of oilfield drill rig. It can be used to provide drilling liquid with a certain discharge capacity and pressure to sand, desilter and mud mixer, to assure these equipment work efficiently.


SB Series Centrifugal pump is used for transferring slurry or mud or water. It can be used as feeding pump for desander, desilter, or used as mixing pump for Jet Mud Mixer. Also it can be used as trip pump, and supercharging pump for rig mud pump.

All DC model centrifugal pump use tungsten carbide mechanical seal, with famous brand Bearing. And spare parts interchangeable with most of the international Brand pump which helps customer to source spare parts easily. Open impeller design that lowers axial thrust loads, and make it easier for installation, repair and maintenance.


DC Centrifugal pump has been exported to many overseas countries. The reliable quality and cost effective solutions has helped GN Solids Control to win many orders of centrifugal pump from the world. With our branches and partners around the world.

Drilling fluid sand pump packaged well and shipped to India

Horizontal sand pump is an important equipment in oil rig mud cycling system, be able to deliver corrodive drilling fluid(with suspended particulates) or other liquid media under similar work condition. DC Solid control shipped 9 sets sand pumps for a India drilling contract company.

sand pump

Vetical sand pump in drilling mud circulation system is usually submersible pump,it usually used to feed drilling mud decanter centrifuge,and sometimes also used to feed mud cleaners,desanders,desiters.

centrifugal pumps

Features of the drilling fluid sand pumps:
1. Open impeller design
2. Grease lubrication
3. SKF premium bearings
4. Tungsten carbide mechanical seal
5. High performance
6. High volume
7. High temperature resistance
8. Long service life
9. Ease to maintenance

Contact DC office please, if you have interest with any feeding pumps.


China top quality sand pump producer- DC Machinery

Sand pump is an very important equipment for a mud cleaning system. SB series drilling mud centrifugal pump can be designed from 3×2 to 8×6. Selecting pump is according to flow rate demand. Furthermore, the flow rate is related with motor power, head, electric system, the impeller size.

centrifugal pump

The Sand pump adopts the axial suction structure, horizontal or vertical structure, composed of a motor, a pump seat, a pump shell, an impeller etc., using shear coupling (horizontal pump) or plum coupling (vertical) connection, mechanical or combined sealing structure, the main vice impeller combination.

The sand pumps are applicable to deliver corrosive drilling fluid (with suspended particulates) or other liquid media under similar work condition, and are optional pumps for de-sander, de-silter and mixing hoppers as well as perfect perfusion pumps of mud pumps.

sand pump
We have more than 80 models of SB 6*8, SB 5*6, SB 4*5, SB 3*4 and SB 2*3 with motors ramming from 4KW to 75KW.  The sand pumps have two structures of direct connection and belt transmission which are suitable for power grids of 50Hz and 60Hz. They also have metric and British systems and clockwise and anticlockwise directions.


Screw pump to be as the feeding pump for centrifuge delivery

DC screw pump can be working for feeding decanter centrifuge. And can also feeding clean water for flushing use. DC is a hydraulic screw pump manufacturer and can supply screw pump according by customs’ requirement.

screw pump

The screw pump is an ideal mud pump to feed drilling fluids for decanter centrifuge since the fluids may flow along with the shaft with a very slow inner flow speed, which will not change the pump’s capacity, but will keep the pressure steady so that no vertex or agitation will be produced. Besides, the screw pump can also be used in the drilling waste management for wet mud and cutting transportation.

The screw pump is of compact structure, small volume, easy maintenance. Rotor and stator are wear parts of this pump, which are convenient to replace.

If you want know more about feeding pump, please contact DC office.

DC Machinery shipped solid control equipment to India at the end of Feb

At the end of the Feb, DC solid control shipped a set of mud cleaning system to indiae. This ordered equipment will be shipped as 3 batches and all of them will be shipped at the last day of Feb.

The client has a very good knowledge on solids control equipment, also knows very well about China manufactures for this kind of equipment. They visited many manufactures in China, seeing is believing, after the comparison on the factory capability and fabrication processing machine, finally, they chose DC as their supplier.

mud equipment

This order is mainly consisting of vacuum degasser, slurry pump and jet mud mixer.

The vacuum degasser DCZCQ240 is can wipe off the invaded gas from drilling mud quickly, restore drilling mud proportion, keep mud viscosity performance and improve the quality of drilling fluid. We also can provide ZCQ270, ZCQ300 and ZCQ360 vacuum degasser

solid control system

The slurry pump is mainly feed for DC High speed decanter centrifuge. The slurry pump is with structure of vertical single stage and single suction overhung centrifugal pump. The impeller is semi-open type, equipped with paddle wheel in the impeller suction side extension place. The length of pump inserts submerged is 800mm~2500mm, and can be equipped with suction pipe if needed.

The jet mux mixer in simple structure and easy manipulation which can satisfy the drilling fluid’s need on weighting and compounding from 1500m to 9000m depth. DC’s jet mud mixer can be customized to be double jet mud mixer based on customer’s need.

Why are mud pumps (used in drilling rigs) reciprocating instead of a centrifugal pump?

As we all know that mud ( Drilling fluid) is used to prevent formation fluids from entering into the well bore, keeping the drill bit cool and clean during drilling, carrying out drill cuttings, and suspending the drill cuttings while drilling is paused and when the drilling assembly is brought in and out of the hole. The drilling fluid which is used job is selected job specifically to avoid formation damage and to limit corrosion. The viscosity of this mud changes from formation to formation, so there is quite a lot of fluctuation of viscosity.

mud pump

So if we will be using the centrifugal pump we have to use different pump for different mud ( different viscosity ), as for these pumps with change in viscosity :
1. The brake horsepower requirement will increase.
2. Reduction in the head which is produced by pump.
3. Some reduction in capacity will occur with moderate and high viscosities.
4. The pump’s efficiency will decrease.

centrifugal pump

This all happens because frictional losses within the pump increases with increase in viscosity.

Whereas if we will be using a Positive displacement ( reciprocating pump ), with increase in viscosity, flow rate also increases because the higher viscosity liquids will fill the clearances of the pump, causing higher volumetric efficiency apart from this, reciprocating pump can also operate at lower speeds and impart low amounts of shear energy to the fluid compared to a centrifugal pump ( shear energy is quite an important factor if we are handling a shear sensitive fluid ).

Top quality drilling fluid centrifugal pump of DC companys

As we know, centrifugal pump is also called sand pump which plays an important role for drilling muds transfer in solid control system. Such as, the drillings from mud tank to shale shaker, the pump is the connection as bridge.

DC produce the centrifugal pump with reliability 、 heat-resistant 、large flow 、long life 、low- energy consumption 、easy maintenance and other advantages.

sand pump

Centrifugal pumps are commonly used to handle medium between -20℃~105℃, and even higher temperature medium of provided with cooling measures in case of needed. They are suitable for chemical, petroleum, metallurgy, electric power, papermaking, foodstuff, pharmaceuticals, synthetic, etc. industry. They are featured by wide range of performance, high efficiency, superior standardization, easy maintenance, etc.

DC also offers its pumps mounted on skid packages horizontal electric, vertical electric, close coupled electric, horizontal diesel, overhead belt and side belt, and wired with starters, if so desired.

DC’s superiority centrifugal pump for sale

Centrifugal pump is a kind of centrifugal pump, it uses axial inhalation structure, the flow passage components is antifriction cast iron. The impeller is open and adapts transport high viscosity drilling fluid. The pump body, impeller and backplate use the material of non-metallic wear resistant. Besides, the high pressure water is injected to the lubrication part of pump shaft to prevent desnader enter into glide parts.

centrifugal pump

Characteristics and advantages of centrifugal pump:

1. Impeller of centrifugal is open type and number of blades are less, the radial of impeller is less, the impeller is width, inlet mouth angle is big, out mouth is small. The linear of impeller is logarithmic spiral to verify the imbedibility and abrasive resistance is good.
2. The worm of centrifugal uses the spiral and the section of worm is rectangle. Centrifugal worm and impeller use the method of area ratio to design, it can control laryngeal flow speed and has high efficiency wear resistance.
3.Sealing form uses the newest mechanical seal and the new type comprehensive shaft seal. Pump shaft seal uses packing seal and the padding room is added the high pressure pure water to clean, it ensure the pump can operate regularly.
4.Centrifugal pump has the advantages of low pressure, big displacement, high efficiency, operation steady and safety, maintenance and adjustment is easy and convenient and service life is long, it also can meet the requirements of customers’.
5. Centrifugal pump accords the movement rules of two phases and distortion rules and the optimize working condition parameter of experiment grade to decide.
6. The main components are all wear resistant ductile iron and resin sand to manufacture, the using life is long and nice exterior.
7. The surface of centrifugal pump all use sand blasting treatment, the paint uses the anticorrosive epoxy zinc rich paint and high pressure airless process construction.
8. All bolts, nuts, flat gaskets and split cotter pin must be galvanized but don’t have chromeplate and nickel plating.

DC production of centrifugal pump is for oil field drilling fluid new supporting pump . The impeller is specially designed to have a wider flow pass and smooth vanes , with larger flow area and smooth fluid pass , making the pump efficiency and energy saving , 10 % higher than similar products .

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