High-Pressure Reciprocating Pump

High-Pressure Reciprocating Pump

Engineered for continuous-duty industrial fluid transfer, hydrostatic testing, and high-pressure cleaning systems. Built with forged alloy fluid ends and solid ceramic plungers to withstand aggressive media and operating pressures up to 1,500 bar.
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Product Introduction

Heavy-Duty High-Pressure Reciprocating Plunger Pumps

 

Engineered for continuous-duty industrial fluid transfer, hydrostatic testing, and high-pressure cleaning systems. Built with forged alloy fluid ends and solid ceramic plungers to withstand aggressive media and operating pressures up to 1,500 bar.

 

Technical Specifications & Performance Matrix

 

Select standard configurations below. Custom displacement, gear ratios, and metallurgical upgrades are available for OEM system integration.

Model Series

Max Pressure (bar / PSI)

Flow Rate Range (L/min / GPM)

Plunger Diameter (mm)

Power Input (kW / HP)

Fluid End Material Options

HPR-100

350 / 5,000

20 - 85 / 5.3 - 22.5

22 - 38

30 / 40

Forged Carbon Steel, 316 Stainless Steel

HPR-250

700 / 10,000

45 - 180 / 11.9 - 47.5

30 - 50

75 / 100

Duplex Stainless Steel (2205), NAB

HPR-500

1,000 / 15,000

80 - 320 / 21.1 - 84.5

40 - 70

160 / 215

Super Duplex (2507), Forged Alloy Steel

HPR-800

1,500 / 22,000

120 - 450 / 31.7 - 118.8

45 - 80

250 / 335

Super Duplex, Custom Monel Overlays

 

Drive Speed Range: 450 to 950 RPM (Gearbox reduction or direct belt drive compatible).

 

Lubrication System: Splash lubrication combined with auxiliary forced-feed lubrication for heavy-duty continuous operation.

 

Engineering & Material Selection

 

Pump longevity depends directly on metallurgical integrity and surface finish. Material selection matches specific chemical compatibility and abrasive load requirements.

 

Fluid Ends: CNC-machined from single-piece forged blocks (eliminating casting porosity risks). Standard materials include forged carbon steel, 316L stainless steel, and ASTM A890 Grade 5A Duplex Stainless Steel.

 

Plungers: High-purity solid sintered ceramic (Al2O3) ground to a surface finish of Ra < 0.2 um. Resists abrasive particle scoring far outperforming traditional chrome-plated steel.

 

Valves & Seats: Precision-ground stainless steel or stellite-faced poppet valves designed for high-frequency cyclic loading and rapid seating with minimal fluid slip.

 

Sealing Elements: Spring-loaded multi-stage V-packing rings (HNBR, PTFE, or Kevlar-reinforced elastomer blends) engineered to manage thermal expansion and prevent media bypass.

 

Manufacturing, Machining & Quality Control

 

Every pump assembly passes through strict dimensional and metallurgical verification stages prior to factory dispatch.

 

Machining Precision: Fluid end block internal galleries are machined on 5-axis CNC horizontal boring centers to maintain concentricity tolerances within 0.01 mm.

 

Non-Destructive Testing (NDT): All forged fluid end blocks undergo Ultrasonic Testing (UT) and Magnetic Particle Testing (MT) in accordance with ASTM standards to detect internal micro-fissures.

 

Hydrostatic Factory Acceptance Testing (FAT): 100% of manufactured pumps undergo a 2-hour full-load factory test run at 1.25x working pressure using calibrated digital data loggers to verify flow stability, bearing temperature rise, and zero external leakage.

 

Traceability: Material Test Reports (MTRs conforming to EN 10204 3.1) are supplied for all pressure-containing components.

 

Typical Industrial Applications

 

Pipeline Hydrostatic Testing: Pressurizing transmission lines up to 1,000 bar to verify structural integrity before commissioning.

 

Reverse Osmosis & Desalination: High-pressure feed injection for industrial water purification skids.

 

Surface Preparation & Hydrodemolition: Delivering steady high-pressure water streams for marine barnacle removal and concrete scarification.

 

Chemical & Polymer Injection: Metering high-viscosity or corrosive additives into active petrochemical process lines.

 

RFQ & Technical Inquiry Checklist

 

To ensure exact pump sizing and prevent cavitation or mechanical overload, include the following parameters in your inquiry:

 

Fluid Characteristics: Specific gravity, viscosity, temperature, and chemical composition (including pH and chloride concentration).

 

Operating Parameters: Required flow rate (L/min or GPM) and discharge pressure (bar or PSI).

 

Duty Cycle: Hours of operation per day (e.g., 8 hours intermittent vs. 24/7 continuous duty).

 

Drive Configuration: Electric motor voltage/frequency, diesel engine drive, or bare shaft pump head only.

 

Certificates Required: ATEX zone classification, API 674 compliance, or third-party inspection (SGS/BV).

 

Frequently Asked Questions

 

Q: What causes premature plunger packing wear, and how is it mitigated?

A: Premature packing failure typically results from abrasive solids in the fluid, dry running, or misaligned plungers. Mitigation involves installing 100-micron pre-filtration on the suction line, utilizing internal flush cooling ports on the packing glands, and maintaining correct spring-load tension during assembly.

Q: Are these pumps compliant with API 674 standards for positive displacement pumps?

A: Yes. Custom configurations can be engineered and manufactured fully compliant with API 674 3rd edition requirements, including heavy-duty power end designs, pulsation dampeners, and auxiliary lubrication skids upon request.

Q: What is the maximum fluid temperature the standard pump head can handle?

A: Standard elastomer seals handle fluids up to 60 °C (140 °F). For higher temperature applications up to 120 °C (248 °F), high-temperature FKM or FFKM dynamic seals and modified stuffing box clearances must be specified.

Q: Can these reciprocating pumps handle salt water or corrosive chemicals?

A: Yes, provided the correct fluid end metallurgy is selected. For seawater, desalination, or high-chloride environments, we specify ASTM A890 Grade 5A Super Duplex Stainless Steel or Nickel-Aluminum Bronze (NAB) fluid ends paired with solid ceramic plungers.

Q: What pulsation dampening is required on the discharge side?

A: Because reciprocating pumps experience inherent flow pulsation from cyclic plunger strokes, a bladder or diaphragm-type discharge pulsation dampener must be installed downstream to reduce pressure fluctuations to within +/-2%, protecting piping joints and instrumentation.

Q: What is the standard lead time for a custom-engineered high-pressure pump unit?

A: Standard bare shaft pump models are typically dispatched within 4 to 6 weeks. Complete engineered skids integrated with electric motors, gearboxes, relief valves, and pressure control panels require 8 to 12 weeks depending on component sourcing and specific third-party testing requirements.

 

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