| Customization: | Available |
|---|---|
| After-sales Service: | 1 Year |
| Warranty: | 1 Year |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
| Payment Methods: |
|
|---|---|
| Support payments in USD |
| Secure payments: | Every payment you make on Made-in-China.com is protected by the platform. |
|---|
| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
|---|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Drilling Mud Pump (Triplex / Quintuplex)
The drilling mud pump, also known as a mud pump or drilling pump, is a critical component of the drilling circulation system. It delivers high-pressure drilling fluid down the drill string to cool the bit, carry cuttings to the surface, and maintain wellbore stability.
Our mud pumps are available in triplex (F-series, 3NB series) and quintuplex (5NB series) configurations, with power ratings ranging from 500 HP to 2,200 HP. All models are designed to meet API 7K standards, ensuring reliability in onshore and offshore drilling, workover, and well stimulation applications.
Key Features
Heavy-duty fluid end with high-chrome liners and valves for extended service life
Rugged power end with forged steel crankshaft and herringbone gears
Options for direct drive or gear-driven configurations
Interchangeable parts with major OEM brands
Suitable for high-pressure (up to 7,500 psi) and high-low operations
Detailed Version (for technical brochures / website)
Introduction to Drilling Mud Pumps
The drilling mud pump is the heart of the rig's circulating system. It generates the pressure and flow required to circulate drilling fluid (mud) from the mud tanks, down through the drill string, out of the bit nozzles, and back up the annulus to the surface. This process removes cuttings, cools and lubricates the drill bit, and prevents formation fluid influx.
Modern drilling operations rely primarily on triplex (three-cylinder) and quintuplex (five-cylinder) reciprocating pumps. Triplex pumps, such as the widely used F-500 through F-2200 models, offer a proven balance of power, simplicity, and ease of maintenance. Quintuplex pumps provide smoother flow with reduced pressure pulsation, making them ideal for high-pressure applications like managed pressure drilling (MPD) and hydraulic fracturing.
Construction & Key Components
A drilling mud pump consists of two main sections: the power end and the fluid end.
Power End
The power end converts rotary motion from the engine or electric motor into reciprocating motion. It houses the crankshaft, bull gear, pinion shaft, crossheads, connecting rods, and lubrication system. Heavy-duty designs incorporate forged alloy steel components and forced-feed lubrication to withstand continuous high loads.
Fluid End
The fluid end manages the drilling fluid under high pressure. It contains cylinders, liners, pistons, valves, seats, and discharge/suction modules. Wear-resistant materials such as bimetallic liners, high-chrome iron valves, and polyurethane or nitrile rubber piston rubbers are used to maximize service life when handling abrasive and corrosive muds.
Performance & Standards
All our mud pumps are manufactured in accordance with API Specification 7K (Drilling and Well Servicing Equipment). They are designed for:
Pressure ratings up to 7,500 psi (52 MPa) depending on liner size
Flow rates matched to rig circulation requirements
Continuous heavy-duty operation in both onshore and offshore environments
Applications
Oil and gas exploration drilling
Geothermal and water well drilling
Workover and well servicing
Horizontal directional drilling (HDD)
Hydraulic fracturing (quintuplex models)
Advantages
Reliability: Robust power end with extended bearing life and superior lubrication
Maintenance efficiency: Interchangeable fluid end components reduce downtime
Versatility: Multiple liner sizes allow easy pressure/flow adjustment
Global support: OEM and aftermarket spare parts available for all common models (F-500, F-800, F-1000, F-1300, F-1600, F-2200, 3NB series, etc.)
Whether for new rig builds, upgrades, or replacement needs, our drilling mud pumps deliver the performance and durability required for today's demanding drilling operations.
3NB Series MUD PUMP
| Type | 3NB350 | 3NB500 | 3NB600 | 3NB800 | 3NB1000 | 3NB1300 | 3NB1600 |
| Rated power | 350 (257) | 500 (368) | 600 (441) | 800 (588) | 1000 (735) | 1300 (955) | 1600 (1176) |
| Rated stroke (SPM) | 130 | 120 | 135 | 130 | 125 | 120 | 120 |
| Stroke length (mm) | 180 | 180 | 196 | 273 | 273 | 305 | 305 |
| Gear ratio | 4.483 | 4.696 | 4.696 | 3.482 | 3.482 | 3.657 | 3.657 |
| Valve size | 5# | 5# | 5# | 6# | 6# | 6#/7# | 7# |
| Pad size | φ90-φ160 | φ100-φ170 | φ100-φ180 | φ120-φ180 | φ120-φ180 | φ130-φ190 | φ140-φ190 |
| Maximum pressure (MPa) | 31 | 35 | 35 | 35 | 35 | 35 | 35 |
| Maximum displacement | 23.51 L/S | 24.50 L/S | 33.65 L/S | 45.13 L/S | 43.40 L/S | 51.86 L/S | 51.86 L/S |
| Inlet diameter (mm) | 203 | 203 | 203 | 254 | 254 | 305 | 309 |
| Outlet diameter (mm) | 76 | 83 | 83 | 101 | 101 | 101 | 128 |
| Dimensions L*W*H (mm) | 3600*2080*2015 | 3600*2230*2080 | 3600*2230*2080 | 3900*2155*2052 | 4600*2240*2052 | 4300*2450*2513 | 5500*2822*2660 |
| Weight (kg) | 8058 | 9484 | 11000 | 17200 | 18000 | 21500 | 27100 |
F Series MUD PUMP
| Type | F500 | F800 | F1000 | F1300 | F1600 |
| Rated power | 373/500 | 597/800 | 746/1000 | 969/1300 | 1193/1600 |
| Rated stroke (SPM) | 165 | 150 | 120 | 120 | 120 |
| Stroke length (mm) | 190.5/7.5" | 228.6/9" | 305/12" | 305/12" | 305/12" |
| Gear ratio | 4.286: 1 | 4.185: 1 | 4.207: 1 | 4.206: 1 | 4.206: 1 |
| Gear type | Herringbone Gear | Herringbone Gear | Herringbone Gear | Herringbone Gear | Herringbone Gear |
| Inlet diameter (mm) | 8"(203mm) | 10"(254mm) | 12"(305mm) | 12"(305mm) | 12"(305mm) |
| Outlet Connection | 5" | 5" | 5" | 5" | 5" |
| Dimensions L*W*H (mm) | 3658×2709×2231mm 144"×106.65"×87.8" |
3963×3025×2410mm 156"×119"×95" |
4267×3167×2580mm 168"×124.7"×101.6" |
4615×3276×2688mm 181.8"×128"×102.4" |
4615×3276×2688mm 181.6"×128.8"×102.4" |
| Weight (kg) | 9770/21540 | 14500/31970 | 18790/41425 | 24572/54170 | 24791/54660 |
){kind=link}