RKV4G37D-F24C2 Triplex Pump
The Annovi Reverberi RKV4G37D-F24C2 is a heavy-duty triplex plunger pump designed for commercial and
industrial pressure washing systems that run hard and often. Delivering 4.0 GPM at 3700 PSI and operating
at 3400 RPM, it provides the working pressure, flow, and duty rating required for fleet washing, construction
cleanup, industrial maintenance, and contractor-built rigs. With an F24 direct-mount flange, 1″ hollow keyway
shaft, and a C2 unloader assembly, this pump is built for efficient engine integration, controlled operation,
and long service life in demanding environments.
- High-output triplex plunger pump for professional hot- and cold-water wash systems.
- Ideal for continuous or frequent-duty applications in industrial, fleet, and contractor settings.
- Direct-drive layout reduces drivetrain complexity while improving efficiency and alignment stability.
Performance & Duty Range
- Flow: 4.0 GPM, matched to high-impact cleaning with manageable water consumption.
- Pressure: 3700 PSI for cutting through heavy deposits, road film, grease, and concrete grime.
- Speed: 3400 RPM operation for compact, engine-driven pump packages.
- Pump Type: Triplex plunger design for low-pulsation, consistent pressure output.
- Duty Class: Commercial and industrial systems running multiple hours per day.
- Typical System Power: Sized for heavy-duty gasoline or diesel engines in direct-drive layouts.
Mounting & Drive Integration
- F24 flange mount designed for direct coupling to 1″ gasoline and diesel engine shafts.
- 1″ hollow keyway shaft provides secure torque transfer with standard keyed engine outputs.
- Direct-drive connection eliminates belts and pulleys, reducing installation complexity and ongoing adjustment.
- Compact footprint fits skid frames, trailer systems, and OEM plates where space is at a premium.
- Rigid mounting geometry helps maintain alignment between engine and pump, improving bearing and seal life.
Internal Construction & Components
- Ceramic plungers resist abrasion and thermal shock, helping protect packings during high-duty cycles.
- Bronze connecting rods provide high strength and fatigue resistance under sustained load.
- Reinforced crankcase supports the crankshaft and bearings with excellent rigidity and heat dissipation.
- Forged brass manifold (series standard) offers corrosion resistance in harsh wash environments.
- Stainless-steel inlet and discharge valves provide reliable sealing and fast response at high cycling rates.
- Oversized crankshaft bearings help stabilize the rotating group and extend service intervals.
Control & Protection (C2 Unloader) RKV4G37D-F24C2
- C2 adjustable unloader allows the operator or system builder to set working pressure to match
nozzles, tools, and surfaces. - Integrated bypass function routes flow safely when the trigger gun is closed, protecting hoses, guns, and
accessories from over-pressurization. - Smooth pressure transitions reduce shock loads to the drivetrain and plumbing, improving operator comfort and
extending component life. - Pressure control at the pump simplifies system plumbing and reduces the need for additional regulators
downstream.
Operational Benefits of RKV4G37D-F24C2
- High cleaning energy: 3700 PSI at 4.0 GPM provides the impact needed for concrete, steel, and equipment surfaces.
- Consistent spray pattern: Triplex design reduces pulsation for smoother lance control and better surface coverage.
- Direct-drive efficiency: Fewer drivetrain components mean less power loss and fewer mechanical wear points.
- Flexible pressure range: C2 unloader adjustment supports everything from lighter rinsing to aggressive washdown.
- Professional duty rating: Built to withstand frequent starts, long run times, and harsh jobsite conditions.
Typical Applications for RKV4G37D-F24C2
- Concrete and hard surfaces: Parking lots, loading docks, sidewalks, and warehouse slabs.
- Heavy equipment washdown: Excavators, loaders, skid steers, pavers, and rental fleets.
- Fleet maintenance: Truck, bus, and trailer wash bays requiring consistent, repeatable throughput.
- Agricultural cleaning: Tractors, harvesters, implements, and livestock-area sanitation.
- Industrial plants: Degreasing stations, production-area washdown, and maintenance cleaning.
- Contractor rigs: Skid- and trailer-mounted systems supporting mobile wash crews and service trucks.
Service, Maintenance & Included Features
- Pre-filled break-in oil in the crankcase reduces startup wear and speeds commissioning.
- Oil sight glass provides instant confirmation of oil level and condition during daily checks.
- Vented dipstick supports proper crankcase ventilation and quick service during oil changes.
- Front-access valve caps and packing areas simplify inspection, seal replacement, and rebuild work.
- Factory testing verifies performance before shipment, reducing setup time and troubleshooting in the field.
- 5-year manufacturer warranty (per AR terms) supports long-term operation and asset planning.
Why the RKV4G37D-F24C2 for Professional Systems
- Combines industrial-grade construction, high pressure, and controlled output in a compact frame that suits
modern direct-drive engine systems. - Triplex plunger architecture and C2 unloader control give builders and operators a stable, predictable
hydraulic platform for a wide range of tools and applications. - Designed for continuous hard use, it fits the expectations of contractors, fleet operators, and plant
maintenance teams who cannot accept unplanned downtime. - With direct-drive F24 mounting, robust internals, and a long warranty window, the RKV4G37D-F24C2 is a
practical choice for new builds, system upgrades, and professional replacement projects.





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