F-Series Mud Pumps: Models, Specifications & 7500 PSI Options

Sep.15,2026

F-Series mud pumps are triplex, single-acting reciprocating pumps used to circulate drilling fluid through the wellbore during oil and gas drilling. The series is built around a common power-end and fluid-end architecture that has been widely adopted across the drilling industry because it balances dependable hydraulic performance with straightforward field maintenance and a well-established supply of interchangeable components.

FH Petroleum supplies F-Series mud pumps and the replacement components that keep them running. The available model range covers F-500, F-800, F-1000, F-1300, F-1600 and F-1600HL, giving drilling contractors a choice of input power, rated strokes, liner size, working pressure and flow capability. The F-1600HL is the high-pressure configuration of the family, rated for 7500 PSI (approximately 51.7 MPa) under the corresponding liner and operating configuration.

F-1600HL mud pump assembled in the workshop
An F-1600HL mud pump during workshop assembly.

What Is an F-Series Mud Pump?

An F-Series mud pump is a triplex reciprocating pump in which a power end converts rotary input into the linear movement of three pistons, and a fluid end turns that movement into the suction and discharge of drilling fluid. The pump takes low-pressure fluid on the suction side and discharges it at the working pressure required by the circulating system.

Every F-Series pump is organized around two connected sections. The power end contains the crankshaft, connecting rods, crosshead assemblies and pinion/gear drive, and it reduces the drive speed to the rated pump stroke. The fluid end contains the cylinder modules, liners, pistons, valves, valve seats, suction and discharge manifolds, sealing elements and wear plates that come into direct contact with the drilling fluid.

Supporting components complete the system: the liners and pistons set the displacement per stroke, the valves control suction and discharge timing, the manifolds route fluid in and out, and a pulsation dampener smooths pressure fluctuation on the discharge side. Because these components are replaceable, a single pump platform can be configured across a range of liner diameters and pressure ratings.

F-Series Mud Pump Model Range

The F-Series is defined by six primary models, each sized for a different combination of power, flow and pressure:

  • F-500 — 500 HP (370 kW), 165 SPM rated, 191 mm (7.5 in) stroke
  • F-800 — 800 HP (590 kW), 150 SPM rated, 228.6 mm (9 in) stroke
  • F-1000 — 1000 HP (746 kW), 140 SPM rated, 254 mm (10 in) stroke
  • F-1300 — 1300 HP (960 kW), 120 SPM rated, 304.8 mm (12 in) stroke
  • F-1600 — 1600 HP (1193 kW), 120 SPM rated, 304.8 mm (12 in) stroke
  • F-1600HL — 1600 HP (1193 kW), 120 SPM rated, 304.8 mm (12 in) stroke, 7500 PSI configuration

Model selection depends on the required input power, flow rate and working pressure, together with liner diameter, stroke rate and the demands of the drilling system. A higher flow requirement generally leads to a larger liner and a larger pump, while a higher-pressure requirement pushes selection toward a configuration such as the F-1600HL.

F-Series Mud Pump Technical Specifications

The table below summarizes the primary specification values for the F-500 through F-1600HL models. Values are drawn from the F-Series pump technical data supplied with the equipment.

Model Rated Input Power Rated Strokes Stroke Length Gear Ratio Valve Chamber Size Max. Liner ID Rated Working Pressure Suction Connection Discharge Connection Pinion Shaft Diameter Approx. Weight
F-500 370 kW (500 HP) 165 SPM 191 mm (7.5 in) 4.286:1 API 5# 6 3/4 in 34.5 MPa (5000 PSI) 203 mm (8 in) 4 1/16 in flange, 35 MPa 139.7 mm (5 1/2 in) 9,770 kg
F-800 590 kW (800 HP) 150 SPM 228.6 mm (9 in) 4.185:1 API 6# 6 1/2 in 34.5 MPa (5000 PSI) 254 mm (10 in) 5 1/8 in flange, 35 MPa 177.8 mm (7 in) 14,500 kg
F-1000 746 kW (1000 HP) 140 SPM 254 mm (10 in) 4.207:1 API 6# 6 3/4 in 34.5 MPa (5000 PSI) 305 mm (12 in) 5 1/8 in flange, 35 MPa 196.85 mm (7 3/4 in) 18,790 kg
F-1300 960 kW (1300 HP) 120 SPM 304.8 mm (12 in) 4.206:1 API 7# 7 in 34.5 MPa (5000 PSI) 305 mm (12 in) 5 1/8 in flange, 35 MPa 215.9 mm (8 1/2 in) 25,850 kg
F-1600 1193 kW (1600 HP) 120 SPM 304.8 mm (12 in) 4.31:1 API 7# 7 in 34.5 MPa (5000 PSI) 305 mm (12 in) 5 1/8 in flange, 35 MPa 215.9 mm (8 1/2 in) 26,100 kg
F-1600HL 1193 kW (1600 HP) 120 SPM 304.8 mm (12 in) 4.31:1 API 7# 7 1/4 in 51.7 MPa (7500 PSI) 305 mm (12 in) 5 1/8 in flange, 52 MPa 215.9 mm (8 1/2 in) 28,400 kg

Specifications are presented for reference. Rated working pressure reflects the fluid-end configuration; achievable pressure changes with liner diameter and operating conditions and should be confirmed for the specific application.

F-1600 vs. F-1600HL: Understanding the 7500 PSI Configuration

A “7500 PSI mud pump” is most accurately described as a pressure configuration rather than a completely separate pump family. In the F-Series, the F-1600HL represents the high-pressure version of the F-1600 platform, configured to reach 7500 PSI (approximately 51.7 MPa) under the corresponding liner and operating conditions shown in the supplied technical information.

Pressure capability is not fixed across the whole pump; it changes with liner diameter and operating configuration. A larger liner produces more flow per stroke at a lower rated pressure, while a smaller liner produces less flow at a higher rated pressure. The F-1600HL fluid end is engineered for the higher pressure range, and its displacement-versus-pressure values step upward as liner diameter is reduced.

This means an F-1600 is not automatically a 7500 PSI pump. The standard F-1600 configuration is rated around 5000 PSI (34.5 MPa) for its normal liner range, while the F-1600HL is the configuration that reaches 7500 PSI. When specifying a pump, the fluid-end pressure configuration and the intended liner must be selected together.

F-1600HL mud pump units in final assembly
F-1600HL mud pump units in final assembly.

5000 PSI and 7500 PSI Fluid End Configurations

The fluid end sets the pressure capability of the pump and determines the arrangement of the parts that contact drilling fluid. In the F-Series, the fluid-end configurations supplied by FH Petroleum are grouped as follows:

  • F-500 fluid end — 5000 PSI class
  • F-800 / F-1000 fluid end — 5000 PSI class
  • F-1300 / F-1600 fluid end — 5000 PSI class
  • F-1600HL fluid end — 7500 PSI configurations

A fluid end is built from a series of interacting components. The main elements include the cylinder module, liner, piston assembly, valve assembly, valve spring, valve guide, valve cover, suction manifold, discharge manifold, sealing rings, wear plate and pulsation dampener. In high-pressure configurations, the fluid-end modules, manifold connections and sealing arrangement are selected to suit the higher working pressure.

Mud pump fluid end cylinder blocks prepared for assembly
Fluid-end cylinder blocks prepared for mud pump assembly.

Power End and Key Mud Pump Components

The power end converts rotary drive input into the reciprocating motion that drives the fluid end. Its principal components are the crankshaft, connecting rods, crosshead assembly, crosshead guide plates, pinion shaft, ring gear (bull gear), bearings and the piston rod / extension rod connection.

FH Petroleum has direct manufacturing experience in the critical components used inside these power ends. This includes crosshead assemblies, crosshead guide plates, valve bodies and valve seats, liners, connecting rods, piston rods, crankshaft-related components, pinion shafts and gears, together with other mud pump replacement components. That manufacturing and supply capability extends across both power-end and fluid-end parts.

Internal structure of an F-Series mud pump power end
Power-end assembly provides the mechanical drive for the reciprocating fluid-end system.

Engineering Fit Check: Crosshead, Guide Plates and Pump Frame

Inside the power end, correct fit between the pump frame and guide mounting surfaces, the crosshead guide plates and the crosshead assembly with segmented bronze shoes is important during assembly. If these running surfaces are not aligned or fitted correctly, the crosshead will not travel smoothly and the pump will not operate reliably.

The footage below shows engineers reviewing the fit relationship between the guide plates and pump frame, as well as the running fit between the crosshead assembly with segmented bronze shoes and the guide surfaces during mud pump assembly. The original technical discussion has been muted to protect confidential engineering information.

Quality Control for F-Series Mud Pumps

Quality control for F-Series mud pumps spans machining, dimensional control, assembly and component fit, with particular attention to fluid-end components, power-end components and pressure-related parts. Dimensional checks on machined parts, controlled assembly of the running surfaces, and verification of sealing and pressure-containing parts all contribute to consistent pump performance.

F-Series mud pumps supplied by FH Petroleum are manufactured in accordance with applicable API requirements through established mud pump manufacturing resources with long-standing experience in API-qualified production. API-related manufacturing and quality-control requirements are especially important for drilling equipment intended for international oilfield applications.

F-Series mud pump power end frames during manufacturing
F-Series mud pump power-end frames during manufacturing and assembly.

F-Series Mud Pump Components and Replacement Support

FH Petroleum supports both complete F-Series mud pumps and the replacement components used to maintain them. Replacement components can be supplied according to the pump model, part number, technical drawing, dimensions or an approved sample, which helps customers match parts to existing equipment across different pump configurations.

Typical replacement items include crosshead assemblies, crosshead guide plates, liners, pistons, valve bodies and valve seats, connecting rods, piston rods and pinion shafts. Providing a drawing, part number or dimensions with the enquiry allows FH Petroleum to match the correct component for the pump model and configuration.

How to Select the Right F-Series Mud Pump

Choosing the correct F-Series pump starts with the operating requirements of the drilling system. The main selection factors are required input power, required flow, working pressure, liner size, stroke rate, drive arrangement and fluid-end pressure configuration, together with installation requirements and replacement compatibility with existing equipment.

For replacement or project enquiries, the most useful information to provide is the pump model, required pressure, liner size and operating requirements, together with existing equipment information and drawings or part numbers where available.

Why Source F-Series Mud Pumps and Parts from FH Petroleum?

FH Petroleum is an integrated manufacturing and supply resource for mud pumps and mud pump components. The company has direct manufacturing experience in power-end and fluid-end components, works within an established API-qualified manufacturing system, and applies strict quality control to machined and assembled parts.

Customers sourcing F-Series equipment and parts from FH Petroleum benefit from engineering communication, drawing- and sample-based manufacturing capability, and support for both complete pumps and replacement components. The manufacturing and supply system has experience serving international markets, including the United States, Russia and the Middle East, alongside broader international drilling and oilfield markets.

Frequently Asked Questions

What is an F-Series mud pump?

An F-Series mud pump is a triplex, single-acting reciprocating pump used to circulate drilling fluid. The series includes the F-500, F-800, F-1000, F-1300, F-1600 and F-1600HL models.

What is the difference between F-1600 and F-1600HL?

The F-1600HL is the high-pressure configuration of the F-1600 platform, configured to reach 7500 PSI under the corresponding liner and operating conditions. The standard F-1600 is normally rated around 5000 PSI.

Is a 7500 PSI mud pump a separate mud pump series?

No. 7500 PSI describes a pressure configuration of the fluid end rather than a separate pump family. In the F-Series, it is represented by the F-1600HL.

Can an F-1600 mud pump operate at 7500 PSI?

Not automatically. 7500 PSI operation requires the F-1600HL configuration. The standard F-1600 fluid end is rated around 5000 PSI for its normal liner range.

What is the difference between 5000 PSI and 7500 PSI fluid ends?

The 7500 PSI fluid end is engineered for higher working pressure through its fluid-end modules, manifold connections and sealing arrangement. The 5000 PSI fluid end covers the standard F-500 through F-1600 configurations.

What F-Series mud pump models does FH Petroleum supply?

FH Petroleum supplies F-500, F-800, F-1000, F-1300, F-1600 and F-1600HL mud pumps, together with the components used in these pump systems.

Can FH Petroleum supply F-Series mud pump replacement parts?

Yes. Replacement components can be supplied according to the pump model, part number, technical drawing, dimensions or an approved sample.

What information is required when ordering a replacement mud pump or component?

Provide the pump model, required pressure, liner size and operating requirements, plus existing equipment information and drawings or part numbers where available.

Are the mud pumps supplied according to API requirements?

F-Series mud pumps supplied by FH Petroleum are manufactured in accordance with applicable API requirements through established manufacturing resources with long-standing API-qualified production experience.

Request F-Series Mud Pump Specifications or a Quotation

For F-Series mud pump, 5000 PSI / 7500 PSI configuration, fluid-end or replacement-component requirements, contact FH Petroleum with the required pump model, operating pressure, liner size, part number, technical drawing or other available technical information.

View our F-Series Mud Pumps for complete pump configurations and supply options.

 

Need Mud Pump Parts Or Equipment?

Send us your drawing, model number or requirements.Our engineers will reply within 24 hours.

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