Overview
- The Annovi Reverberi RKV4037-F24 Triplex Pump is a high-performance pressure washer pump
engineered for maximum durability, efficiency, and reliability in demanding commercial and industrial
cleaning environments. - Delivering 4.0 gallons per minute (GPM) at 3,700 PSI while running at
3,400 RPM, it provides the strong, concentrated cleaning power needed for heavy-duty
washing of equipment, vehicles, and large exterior surfaces. - Its compact, direct-drive layout is optimized for skid mounts, trailer rigs, and OEM frames where space
is limited but high output and long service life are essential. - Built with a forged brass manifold, ceramic plungers, and stainless steel valves, the RKV4037-F24 is
designed to stay in service under continuous high-pressure duty cycles with minimal downtime.
Direct-Drive F24 Flange Design
- The pump features an F24 flange and 1-inch hollow keyway shaft, allowing
secure, direct coupling to compatible gasoline or diesel engines without the need for belts or pulleys. - Direct drive reduces power loss through the drivetrain, delivering more usable water horsepower to the
nozzle and improving overall cleaning efficiency. - The 1-inch hollow shaft simplifies alignment and installation, helping OEMs and contractors complete new
builds and pump replacements quickly and accurately. - This configuration is ideal for mobile pressure washer skids, trailer-mounted systems, and engine-driven
industrial wash units that run for long periods at high load.
Key Specifications
- Model: Annovi Reverberi RKV4037-F24 Triplex Pump.
- Flow Rate: 4.0 GPM for strong, productive cleaning coverage.
- Maximum Pressure: 3,700 PSI for cutting through heavy soil, oil, and grime.
- Operating Speed: 3,400 RPM high-speed design for compact, direct-drive systems.
- Pump Type: Triplex ceramic plunger pump for smooth, pulsing-free output.
- Flange Type: F24 engine flange for direct coupling to gas or diesel engines.
- Shaft Size: 1-inch hollow keyway shaft for standard engine connections.
- Manifold: Heavy-duty brass manifold for strength and corrosion resistance.
- Plungers: Precision ceramic plungers to protect seals and handle high temperatures.
- Valves: Stainless steel inlet and discharge valves for consistent performance.
- Warranty: 5-year limited warranty with nationwide service support.
Included with the Pump
- Each RKV4037-F24 pump is factory-tested under load and shipped ready to install so your
system can be brought online quickly and confidently. - Supplied with pre-filled break-in oil in the crankcase, eliminating the need to add oil
before initial startup and helping ensure proper early lubrication. - An integrated oil sight glass allows fast visual checks of oil level and condition,
encouraging routine maintenance and extended component life. - A vented dipstick provides crankcase relief and simple access for oil changes, making
service straightforward for technicians in the field. - Each pump also includes a detailed operator’s manual and schematic with parts
diagram to support installation, troubleshooting, and future rebuilds. - The unit ships in protective packaging to help ensure that the pump arrives damage-free and ready for
installation. (Mounting bolts are typically sourced from the engine or frame manufacturer.)
How the Triplex Pump Works
- The RKV4037-F24 uses a triplex plunger system, where three ceramic plungers operate in
sequence to draw water into the manifold and pressurize it through stainless steel valves. - This configuration minimizes pulsation, delivering a smooth, consistent spray pattern that improves
cleaning results and reduces stress on hoses, guns, and fittings. - Operating at 3,400 RPM, the pump is tuned to provide a balance of flow and pressure that
maximizes cleaning impact while maintaining efficiency in fuel and engine load. - The brass manifold resists corrosion and erosion from high-velocity water and chemicals, while the
ceramic plungers dissipate heat and protect seals for extended life.
Benefits & Performance Advantages
- Maximum cleaning power: 4.0 GPM at 3,700 PSI gives operators the muscle needed for heavy
soil removal on machinery, vehicles, and concrete. - Durable construction: Brass manifold, ceramic plungers, and stainless valves are selected
for strength, corrosion resistance, and long service life in harsh environments. - User-friendly maintenance: Pre-filled oil, sight glass, and vented dipstick make
day-to-day service checks quick and easy, reducing downtime. - High-speed efficiency: 3,400 RPM operation allows smaller packages with high output,
ideal for compact engine-driven pressure washer frames and skids. - Professional reliability: Engineered for continuous use, the RKV4037-F24 is well-suited
for contractors and facilities that run pumps for extended shifts. - Warranty coverage: A 5-year warranty and U.S. service network provide long-term support
and confidence in your investment.
Typical Applications
- Heavy machinery cleaning: Ideal for construction, mining, forestry, and manufacturing
equipment that must be washed between jobs or shifts. - Fleet and vehicle washing: Provides the balanced flow and pressure needed for trucks,
buses, service vehicles, and agricultural machinery. - Concrete and surface cleaning: Effective on sidewalks, driveways, loading docks, shop
floors, and industrial yards where deep cleaning is required. - Commercial facilities: Suited for storefronts, warehouses, garages, and service bays that
require regular high-pressure washdowns. - Industrial maintenance: Works well in fixed wash-down stations and centralized cleaning
systems inside plants and workshops.
Why Choose the RKV4037-F24?
- The RKV4037-F24 is a professional-grade pump specifically built to handle tough cleaning
challenges where ordinary consumer pumps fall short. - Direct engine mounting via the F24 flange eliminates alignment issues, simplifies
installation, and reduces components that can loosen or wear over time. - Its combination of high PSI, strong GPM, and durable materials helps crews complete jobs
faster, improving productivity and reducing labor costs. - When paired with proper filtration, unloader selection, and routine maintenance, this pump
offers long-term reliability for contractors, rental fleets, and industrial users alike. - For operations that demand powerful performance, easy installation, and long-lasting
durability, the Annovi Reverberi RKV4037-F24 Triplex Pump is a clear, proven choice.




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