3NB Series Triplex Mud Pump

Rongli RL3NB series triplex mud pumps are designed for drilling fluid circulation and oilfield fluid service applications. The series uses a triplex single-action reciprocating structure and an extended stroke design, allowing the pump to operate at a lower stroke rate under suitable working conditions.

The original product page states that the extended stroke design helps improve suction performance and extend the service life of expendable parts. It also states that RL3NB series pumps are produced and tested in accordance with the SY5138 standard formulated by the Ministry of Petroleum Industry of China.

The RL3NB series can be supplied for well drilling, workover operations, long-distance liquid transportation, polymer flooding, water injection and selected industrial or mining applications. For each project, the final pump model, liner size, pressure, displacement, drive arrangement, spare parts scope and documentation package should be confirmed according to the customer requirement.

The 3NB series is suitable for customers who need reliable mud circulation and oilfield fluid service equipment. Compared with a simple product listing page, this product page should help buyers select the correct pump model by comparing power, stroke rate, stroke length, liner range, pressure, displacement, weight and drive method.

For overseas buyers, the key purchasing question is not only whether a pump is available. They also need to know whether the model matches their rig, whether the pressure and displacement meet the field requirement, whether spare parts can be supplied, whether the pump can be inspected before shipment and whether export packing and transportation support are available.

• Oil and gas well drilling fluid circulation
• Workover operation fluid service
• Long-distance liquid transportation in oilfield projects
• Polymer flooding service
• Water injection service in oilfields
• Mining and industrial fluid transfer applications, subject to working condition confirmation
• Mud pump replacement for existing drilling or workover equipment
• Mud pump package supply for complete rig projects

Power End
The power end includes the base, housing, main drive shaft, crankshaft, gear pair, connecting rod and crosshead assembly. These components support mechanical power transmission and are critical for stable long-term pump operation.
 

Fluid End
The fluid end includes the high-pressure valve box, discharge manifold assembly and suction manifold assembly. The final fluid-end configuration should be selected according to pressure, displacement, liner size and field maintenance requirements.
 

Lubrication System
The power end can use splash gravity lubrication or dual lubrication. Dual lubrication combines forced lubrication with splash gravity lubrication, helping protect gears, bearings, crossheads, sliding plates and guide plates during continuous operation.
 

Liner and Piston Cooling
The source page states that liners and pistons are spray-cooled by dedicated centrifugal pumps. This cooling arrangement helps support stable performance during continuous mud pump operation.

The following model summary is reorganized from the source product page. Detailed pressure and displacement values vary by liner size and stroke rate, so the final selection should be confirmed by the technical proposal.

A mud pump should not be selected by horsepower alone. The model should be reviewed together with rig capacity, operating pressure, required displacement, liner size, pump speed, drive method and maintenance plan.

• Confirm the required working pressure and required flow rate.
• Confirm the liner size range required for the drilling or fluid service program.
• Confirm whether the pump will be used for drilling, workover, polymer flooding, water injection or liquid transportation.
• Confirm the available power source, such as electric motor, diesel engine or VFD system.
• Confirm the suction and discharge pipeline arrangement.
• Confirm whether a bare pump or a complete pump package is required.
• Confirm required spare parts, including liners, pistons, valves, seats, seals and rods.
• Confirm inspection, testing, packing and export documentation requirements before quotation.

• Whether the selected pump model can meet the required pressure and displacement.
• Whether the liner size range matches the field operation requirement.
• Whether the pump can be supplied as a bare pump or complete driven package.
• Whether electric drive, diesel engine drive or VFD control is required.
• Whether the pump can be inspected and tested before shipment.
• Whether spare parts can be supplied together with the pump.
• Whether the pump dimensions and weight are suitable for transportation.
• Whether export packing, loading photos and shipping support can be provided.
• Whether warranty terms and excluded items are clearly defined before contract signing.
• Whether real equipment photos and videos are available for customer review.

For heavy mud pump equipment, real photos and videos are important for customer evaluation. They help buyers understand the actual equipment structure, assembly quality, testing process and delivery preparation before placing an order.

According to project availability, the page should include real photos and videos of the pump body, power end, fluid end, suction manifold, discharge manifold, lubrication system, liner and piston assembly, pump testing, painting, packing and loading.

Rongli is engaged in the supply and integration of drilling rigs, mud pumps and oilfield drilling equipment. For mud pump projects, the team supports model selection, configuration review, spare parts matching, inspection coordination, export packing and after-sales technical support.

For customers purchasing mud pumps as part of a drilling rig package, Rongli can help review the mud pump model together with the drilling depth, well program, mud circulation requirement, power source and transportation plan.

• Mud pump model selection
• Bare pump or pump package configuration
• Electric drive, diesel drive or VFD drive proposal
• Fluid-end spare parts matching
• Technical documentation preparation
• Factory inspection support
• Export packing and loading support
• Spare parts recommendation
• After-sales technical support

The 3NB series mud pump can be supplied according to different field requirements. The final configuration should be confirmed based on the pump model, pressure, displacement, drive system, site layout and export transportation requirements.

• Bare pump or complete skid-mounted pump package
• Electric motor drive configuration
• Diesel engine drive configuration
• VFD control configuration
• Base skid and coupling arrangement
• Suction and discharge pipeline arrangement
• Spare parts package
• Painting color and customer logo
• Export packing method
• Technical documentation package

Warranty terms are defined according to the final equipment scope and contract. For new equipment, the warranty normally covers manufacturing defects within the agreed warranty period.

• Remote technical support
• Video guidance
• Operation and maintenance manuals
• Recommended spare parts list
• Spare parts supply
• Installation guidance, if required
• Commissioning support, if required
• Technical support during equipment start-up

Consumable parts, normal wear parts, improper operation, poor maintenance, unauthorized modification, third-party parts and damage caused by incorrect use are normally excluded from standard warranty coverage.

The 3NB mud pump is heavy equipment and should be prepared with suitable export packing and loading arrangements. The final shipping plan depends on the selected model, pump package configuration, accessories and destination.

• Export packing
• Wooden case packing for spare parts and accessories
• Skid packing or suitable heavy-cargo packing for the pump body
• Estimated weight and volume
• Packing list preparation
• Factory loading arrangement
• FOB, CFR or CIF shipment support
• Loading photos and videos before shipment
• Export documentation according to contract requirements

Inspection requirements should be defined according to the equipment scope and project requirements. The inspection process helps customers verify the pump condition before shipment and reduce purchasing risk.

• Visual inspection
• Dimensional inspection
• Assembly inspection
• Power end inspection
• Fluid end inspection
• Lubrication system inspection
• Cooling system inspection
• Function testing
• Pressure testing for applicable systems
• Painting inspection
• Packing inspection
• Third-party inspection, where required

Real project records help customers understand equipment supply capability, inspection process, packing quality and export delivery experience. The product page should include selected case cards and link to the Project Cases section for more details.

3NB Mud Pump Package for Oilfield Service Project
Project Type: Oilfield drilling or fluid service project
Equipment Scope: 3NB mud pump, driven package, spare parts and export packing
Service Scope: Model confirmation, configuration review, inspection support and shipment coordination
Project Highlight: The pump package was prepared according to the customer required pressure, displacement, drive method and field maintenance plan.

Mud Pump Spare Parts Supply for 3NB Series Pumps
Project Type: Mud pump maintenance and spare parts supply
Equipment Scope: Liners, pistons, valves, seats, seals, rods and related consumables
Service Scope: Model confirmation, quantity check, packing and export delivery
Project Highlight: Spare parts were matched according to the pump model and field operation requirement.

Mud Pump Testing and Export Loading Record
Project Type: Pre-shipment inspection and export delivery
Equipment Scope: Mud pump equipment, accessories and spare parts
Service Scope: Inspection, packing, loading photos, loading videos and shipping document preparation
Project Highlight: The customer was able to review real photos and videos before shipment.

Information Required for Quotation
1.Required pump model or existing pump nameplate photo
2.Application: drilling, workover, polymer flooding, water injection or liquid transportation
3.Required pressure
4.Required displacement
5.Liner size requirement
6.Required drive method: bare pump, electric drive, diesel drive or VFD drive
7.Power supply condition, if electric drive is required
8.Suction and discharge connection requirement
9.Quantity
10.Required spare parts list
11.Required inspection and testing standard
12.Destination port
13.Required delivery time
14.Any customer technical specification, drawing or project requirement

 

 

Send us your required pressure, displacement, liner size, drive method, quantity and destination port. If the pump is for replacement, please provide the existing pump model, nameplate photo or spare parts drawings.
Our team will review your working condition and prepare a suitable 3NB series triplex mud pump proposal.

Note: The pressure and displacement values depend on liner size and stroke rate. Final performance data, documentation scope and inspection requirements should be confirmed in the technical proposal and contract.

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