Your Professional NOV Mud Pumps Supplier
We are a certified manufacturer of mud pumps, plunger pumps, and fracturing pumps, supplying complete pump systems, accessories, and centrifuges for oil drilling, mining, and industrial use. With API 7K and ISO 9001 certification, advanced CNC machining, and full in-house testing, we deliver reliable equipment for high solids, high pressure, and harsh environments. Our products are widely applied in oil & gas drilling, mining slurry transport, environmental engineering, and high-pressure fracturing operations.
Quality Control
Multi-axis CNC machining and complete testing systems ensure consistent quality, verified performance, and full traceability for every critical component.
Global Market Experience
Strong performance in North America, Russia, and the Middle East supports reliable supply and service.
High-Quality Service
From pre-sales engineering analysis to installation, training, and after-sales maintenance, we help customers reduce risk, improve uptime, and extend equipment service life.
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NOV 14-P-220 OME 7500PSI Mud PumpThe power end is the heart of the Mud Pump, and its design and manufacturing quality directly determines the reliability and service life of the whole equipment. We are well aware of this, so in
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NOV G-700 Mud Pump●Introduction: The National G-700 is a dual-cylinder mud pump with a long history and reliable performance in the NOV (National Oilwell Varco) product portfolio. As a core component of the drilling
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NOV C-350 Mud PumpShijiazhuang Dongli Petroleum Machinery Co., Ltd. is a leading OEM-compatible solutions provider for oilfield equipment. With years of expertise in slurry pump technology, we fully understand the
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NOV C-250 Mud PumpChoosing our OEM parts means you get the best performance and longest lifespan for your original pump. We take every detail to the next level.
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NOV C-150-B Mud PumpChoosing our OEM parts means you get the best performance and longest lifespan for your original pump. We take every detail to the next level.
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NOV 550T-7 Mud PumpAs a professional Original Equipment Manufacturer (OEM), we are committed to supplying high-performance, reliable drilling equipment for the global oil and gas industry. This product introduction
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NOV 7-P-50 Mud PumpMeta Description (SEO): The definitive guide to the NOV National 7-P-50 three-cylinder mud pump. Discover official OEM technical specifications, performance metrics, and detailed material analysis of
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NOV 8-P-80 Mud PumpThe National Oilwell Varco (Nov)8-P-80 mud pump is an industrial grade triplex piston pump designed for deep well drilling and high pressure transportation scenarios, stable handling of drilling mud
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NOV 9-P-100 Mud PumpMeta Description: Discover the exceptional performance of the NOV 9-P-100 three-cylinder mud pump. This 1000 HP pump is specifically designed for medium-deep well drilling, featuring a robust power
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NOV 10-P-130 Mud PumpMeta Description: Discover the exceptional performance of the NOV 9-P-100 three-cylinder mud pump. This 1000 HP pump is specifically designed for medium-deep well drilling, featuring a robust power
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NOV 12-P-160 Mud PumpExplore the Nov 12-P-160, a 1600hp triplex mud pump that is an industry benchmark for deep well drilling. Learn about its rugged power end, innovative l-shaped hydraulic end, superior materials and
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NOV 12-P-160 OME 7500 PSI Mud PumpPower End: a solid foundation for forging strength and mechanical accuracy
Parameter
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Technical specifications |
G-700 (Standard Type-Cast Iron Hydraulic End) |
G-700 forged design (forged hydraulic end) |
Unit |
|
Pump type |
Dual cylinder, dual action |
Double cylinder, double action |
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|
Rated input power |
700 |
700 |
HP (kW) |
|
Rated / maximum impact speed |
60 24 |
60 [Same as Standard] |
SPM |
|
Stroke length |
14 |
14 |
Inch (mm) |
|
Maximum working pressure |
~3,550 (using 5" cylinder liner) |
Up to 7,500/10,000 [depending on the specific forging hydraulic end model] |
PSI (MPa) |
|
Common range of cylinder and liner sizes |
5 to 8 |
5 to 8 |
Inch (mm) |
Types of NOV Mud Pumps
The NOV mud pumps produced by our company mainly include the following types:
NOV G-700 Mud Pump
The National G-700 is a dual-cylinder mud pump with a long history and reliable performance in the NOV (National Oilwell Varco) product portfolio. As a core component of the drilling fluid circulation system, it plays a vital role in maintaining wellbore cleanliness, cooling the drill bit, and balancing formation pressure
NOV C-250 Mud Pump
The piston core is made of high-strength forged alloy steel (e.g., 42CrMo) to ensure deformation resistance under high pressure. The piston rubber is crafted from a special polyurethane material that is both wear-resistant and oil-resistant, bonded to the piston core through an integrated vulcanization process.
NOV 550T-7 Mud Pump
The NOV 550T-7 mud pump is a flagship product engineered for demanding drilling needs. With its exceptional performance, robust construction, and advanced components, it is the ideal choice for deep well drilling, high-flow operations, and high-pressure conditions.

Advantages of NOV Mud Pumps
Mud pump saves energy and reduces consumption
The selection of mud pumps for drilling equipment is often larger than the actual needs. According to the characteristics of mud pumps, the power is equal to the product of displacement and pressure, and the displacement is proportional to the stroke times of the mud pump.
The stability of mud pump operation
High-failure transmission equipment is eliminated, and the rotor of the motor is made of rare-earth permanent magnet material without excitation. The operation is stable and reliable, and the reliability is several levels higher than that of asynchronous motors or DC motors.
The safety of mud pump
Mud pump produced by reliable mud pump manufacturers adopts a dedicated variable frequency drive motor, which has multiple protection functions such as overvoltage, overcurrent, overload, underload, output grounding and output short circuit, etc., to protect the motor to the greatest extent, avoid motor burnout, and the downtime loss caused by the power failure of the drilling supplies mud pump is reduced.
Less maintenance and repair for mud pump
The motor directly drives the input shaft of the mud pump, canceling the intermediate transmission link of the traditional pump set, making the structure more compact, saving the time for maintaining the transmission parts, and realizing maintenance-free.
Lower equipment volume and weight of mud pump
The belt, pulley, protective cover and other related equipment are canceled by mud pump parts manufacturers, the structure is simplified, and the pump set is small in size, light in weight and easy to carry.
Lower noise and vibration of mud pump
The drilling supplies mud pump has no belt or chain transmission, which greatly reduces the vibration and noise of the mud pump and greatly improves the working environment of workers.
Applications of NOV Mud Pumps
Deep well drilling
The pump's high-pressure capacity (up to 7500 PSI) and stable high-flow output enable it to deliver drilling fluid to the bottom of wells thousands of meters deep, effectively cleaning the wellbore, cooling the drill bit, and balancing formation pressure.
Large-diameter operations
The NOV mud pump delivers sufficient flow rate to ensure drilling efficiency in large-diameter wells or when rapid removal of substantial drill cuttings is required.
High-pressure operations
Suitable for drilling in complex formations and unconventional oil and gas resources (e.g., shale gas), as well as high-pressure services such as hydraulic fracturing and cement injection.
Large-scale drilling rig accessories
Its robust design and compact size enable flexible integration into various land and offshore drilling rigs, providing reliable circulation power as the main mud pump type.
NOV Mud Pump Startup Procedure
Check preparation
Ensure that all parts of the mud pump are intact, the lubricant is sufficient, and the power connection is normal.
Open the inlet and outlet valves
Ensure that the mud can go in and out smoothly.
Start the power supply
According to the type of mud pump, start the corresponding power source.
Check the running status
Observe whether the sound, vibration and temperature of the pump are normal.
Adjust the parameters
Adjust the flow rate, pressure and other parameters of the mud pump as needed.
Pay attention to the mud condition
Ensure that the concentration, viscosity, etc. of the mud meets the requirements.
Monitor pressure changes
Avoid excessive high or low pressure.
Check seals
Ensure that there is no leakage.
Pay attention to abnormal conditions
If there is abnormal noise, overheating, etc., stop the machine in time to check.
Ordering Process
Inquiry - quotation - communication - order confirming - deposit payment - production - testing and debugging - balance payment - packing - delivery - customer receiving - after service.
Packaging and Shipping
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Packaging |
Standard export plywood case or carton. |
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Shipping |
DHL, TNT, UPS, FEDEX, and EMS, SF. Air and sea transportation are also supported. |
Our Factory
Shijiazhuang Dong Li Petroleum Machinery Co., Ltd. (DLSY) was founded in 2008 and is headquartered in Shijiazhuang, Hebei Province, China.

Our Certificates




FAQ
Shijiazhuang Dongli Petroleum Machinery Co., Ltd. is one of the most professional nov mud pumps manufacturers and suppliers in China, featured by quality products and low price. Please rest assured to buy CE approved nov mud pumps made in China here from our factory. Contact us for quotation.





