One week ago, an Indian friend shared me some pictures and videos for the Flood in their country, and the terrible situation after Flood. The streets were full of sludge, and many parts of the city were still full or water.

It shall be a big headache for the local government to deal with the environment, besides the homeless people.

We, GN, a professional Chinese pump manufacturer for 11 years, we have two models of pump could be widely used to remove the sludge and water after flood.

The Centrifugal Pump and Sludge Vacuum Pump.

Today we would like to share detailed information about Sludge Vacuum Pump, the GN Hot Sale Pump!



Sludge Vacuum Pump

Waste vacuum pump, also named as solids transfer pump. With special structure design, it can be used at tough environmental for solids transfer, high working performance and less maintenance.
Waste vacuum pump, also named as solids transfer pump. It is a pneumatic slurry transfer vacuum pump for liquid,  slurry, and solids transfer. With special structure design, it can be used at tough environmental for solids  transfer, high working performance and less maintenance. The pump can transfer material with high gravity and high  density, solids content max. up to 80%.

GN Sludge Vacuum Pump Parameter

Model GNSP-40A GNSP-20A GNSP-10A
Max Capacity(m³/h) 40m³/h 20m³/h 10m³/h
Inlet/Outlet Size(Inch) 4” 3”
Vacuum Degree 25”HG (Mercury Column) 85Kpa/25 inch HG(Mercury Column)
Max Suction Distance(m) 50m
Max Discharge Distance(m) 1000m 500m
Max Solids Content 80%
Max Solids Size(mm) 75mm 50mm
Pressure Request 550Kpa-785Kpa (80-114PSI) 550Kpa-690Kpa (80-100PSI)
Air Demand 17m³/min (600CFM) 8m³/min(280CFM) 4.3 m³/min(150CFM)
Weight(kg) 875kg 320kg 290kg
Dimension:L×W×H(mm) 1690×1400×1989mm 1357×916×1253mm 1317×806×1273mm

Material transfer applications

Welcome to contact us, if you need more information.

We would share the Pump working video for it works powerfully.

Before there is a friend from India, we met each other in local exhibition, he said that he ran a Cow farm, with more than 50 cows. Every day the biggest problem for him is how to deal with the huge amount of excrement? He couldn’t find more space in his farm to bury these excrement? It is always  a big headache for him.

Then I suggested him, maybe he can consider about our product, Decanter Centrifuge, the hot sale separation from GN Solids Control.

This special and professional can easily separate the Solid and Water.

At first, he didn’ t believe it, then I show him an video, he was amazing and exciting.

You can find the video from the Linkage below, from our company (no advertisement)

We, Hebei GN Solids Control Co., Ltd, is a leading manufacturer based in China and USA, specialize in separation equipment, include industry decanter centrifuge, solids control equipment, waste management equipment, and shaker screens.GN was established in 2007,and GN is the first API certified solids control equipment manufacturer from China, and GN products have been exported to over 60 countries around the world.




It is always a big headache for dealing with the Mud from our activity.
GN provides a reliable solution—Decanter Centrifuge.


GN Decanter Centrifuge is designed for the drilling mud solids control and oilfield waste management. GN VFD drive decanter centrifuge with variable speed allows Drilling Contractor or Mud Service Company to do the barite recovery, fine/ultra-fine solids separation, dewatering centrifuge. GN has the decanter centrifuge from 9 inch bowl to 22 inch bowl available for different applications. GN decanter centrifuge bowl length and diameter ration is over 3, this gives the best result!

• Patent Design with the highest configuration and best material for long and reliable service.
• Bowl Cylindrical and Conical section made from Duplex Stainless Steel 2304 by centrifugal casting.
• Other Parts of the bowl assembly material: stainless steel SS304.
• Screw protection: Tungsten Carbide Tiles for longer life and easier replacement.
• Screw flow distribution port and bowl solids discharge port protected by tungsten carbide alloy.
• Easily adjustable liquid discharge weir height for flexible application.
• Bowl assembly supported by tighten belt for protection of bearing in moving.
• Pressurized EX Proof VFD control cabinet with PLC controlled.
• Genuine SKF bearing for longer and reliable operation.

GN Solids Control is an industry-leading manufacturer of solid state control equipment, established in Tangshan, China in 2007. Since then we have focused on quality and performance. After 11 years of hard work and network construction, we have become a very important player in the global industrial/oil and gas market.

Let us take a look at our mud drilling system today. It includes: 223 decanter centrifuge, 752 mud vibrating screen and other solids removal devices. The GN 223 Settling Centrifuge is designed for the diamond drilling industry. Here are some notable specifications for our 223 Centrifuge: The rotating bowl is made of duplex stainless steel – SS304. The discharge port is protected by a special ceramic blade for longer service life and better protection. The adjustable outlet makes the pond depth adjustment easier and faster. Pneumatically controlled springs will make the opening of the cover easier and safer. The bowl lift bracket can be used as a bearing for SKF production during transportation. The conveyor surface is made of tungsten carbide bricks for durability and ease of maintenance. Electrical components are from SIEMENS or SCHNEIDER. The GN 752 Mud Vibrating Screen is also produced for the diamond industry. The vibration mode is linear and the processing capacity is 200GPM. Adjustable G force up to 7.1G. The vibrator is manufactured by OLI or MARTIN and is ATEX, UL or IEC certified. Two screens are installed on the vibrating screen, which are pre-tensioned and of high quality. Electrical components are also made by SIEMENS or SCHNEIDER. By installing a hydrocyclone on the shale shaker, it can be adjusted to a slurry cleaner that separates the smaller solids to 20 microns.

This is a brief introduction to GN’s diamond drilling mud recovery system. Welcome to, please send your questions to


Since its inception in 2006, GN has sold its solids control equipment and mud recovery systems to more than 60 countries. GN’s mud recovery system can be used in many applications such as oil and gas drilling, diamond drilling, hard drive, tunnelling, piling, dredging and more. Today we will discuss an application of a mud recovery system based on a case study: a project in London.

Just two years ago, GN Solids Control sold a mud recovery system to UK customers for civil engineering. The system consists of a two-layer mud shaker and a decanter centrifuge. Mud vibrating screens are used for coarse separation to eliminate large solids. The screen API number on the upper deck will be smaller than the lower deck, which means that the lower deck screen can separate finer solids than the upper deck screen. The treated fluid will then fall into the tank and then pumped through a screw pump to a decanter centrifuge for further separation. A decanter centrifuge can separate solids to 20 microns. The centrifuge is rugged and requires less maintenance during normal operation. The bowl is made of 2205 stainless steel duplex, the bearing is made by the world famous SKF, and the screw conveyor and discharge port are protected by tungsten carbide brick. The spring also protects the decanter centrifuge during transport. After this separation, the mud can be returned to the system for reuse again. This will be very environmentally friendly and cost effective. GN can customize the mud recovery system according to the different requirements of customers to provide customers with the best solution.  This is a basic introduction to the mud recovery system. If you are interested, please visit and send your questions to