RKV4G40HD-F24 4.0 GPM 4000 PSI | 3400 RPM F24 Pump

Annovi Reverberi RKV4G40HD-F24 Triplex Pump | 4.0 GPM 4000 PSI F24 Direct-Drive Flange

The Annovi Reverberi RKV4G40HD-F24 is a heavy-duty industrial
triplex plunger pump delivering 4.0 GPM at 4,000 PSI at
3,400 RPM — engineered for direct mounting to gas and diesel
engines via an F24 direct-drive flange and 1-inch hollow
keyed shaft for fleet maintenance, industrial wash bays, construction
equipment cleaning, agricultural washdown, and commercial contractor rigs where
high-output direct-drive performance and long continuous-duty service life are
both required. The RKV4G40HD-F24 eliminates belt-drive alignment
issues and belt maintenance entirely — direct-drive configuration transfers engine
power to the pump shaft with no intermediate drive components to maintain, adjust,
or replace.

Built with a heavy-duty brass manifold, ceramic plungers, stainless steel inlet
and discharge valves, bronze connecting rods, an oil-bath crankcase, oversized
bearings, and a reinforced crankcase architecture, the RKV4G40HD-F24
is constructed specifically for the heat, vibration, and continuous load demands of
3,400 RPM high-speed industrial operation at 4,000 PSI. Precision-machined hydraulic
channels reduce internal turbulence and improve volumetric efficiency — delivering
a stable pressure curve that protects accessories, hose assemblies, and downstream
components from the pulsation and pressure cycling fatigue that lesser pump designs
produce at equivalent output. Backed by a 5-year manufacturer warranty
, the RKV4G40HD-F24 ships factory-assembled with break-in oil installed
and ready for immediate engine mounting.

RKV4G40HD-F24 Key Specifications

Performance, Drive & Construction

• Model: Annovi Reverberi RKV4G40HD-F24
• Flow Rate: 4.0 GPM — high-output performance for
  industrial wash bays, fleet washing, surface cleaners, long
  hose runs, and multi-tool
  wash stations
• Maximum Pressure: 4,000 PSI — industrial-grade
  cutting pressure for heavy buildup, grease, scale, and soils
  on industrial and commercial surfaces
• Operating Speed: 3,400 RPM — high-speed
  direct-drive configuration for gas and diesel
  engine compatibility
• Drive Configuration: F24 direct-drive flange —
  mounts directly to compatible gas and diesel engines;
  eliminates belts, pulleys, and related
  maintenance entirely
• Shaft: 1-inch hollow keyed shaft — stable,
  reliable torque transfer interface for direct engine
  shaft mounting
• Pump Type: Triplex plunger — three-cylinder
  balanced design for smooth, consistent low-pulsation output
  at rated 4,000 PSI
• Manifold: Heavy-duty brass — corrosion
  resistance and structural strength for sustained chemical
  exposure and high-pressure fatigue at
  4,000 PSI
• Plungers: Ceramic — thermal stress, abrasion,
  and seal wear resistance for continuous-duty
  high-speed operation
• Valves: Stainless steel inlet and discharge —
  accurate flow regulation and dependable cycling at
  rated 4,000 PSI output
• Connecting Rods: Bronze — even load distribution
  across the crankshaft during long high-speed
  duty cycles
• Crankcase: Oil-bath lubrication with reinforced
  construction — continuous drivetrain protection and heat
  dissipation during 3,400 RPM
  industrial operation
• Bearings: Oversized — support rotational loads
  during sustained high-speed 4,000 PSI operation
• Hydraulic Channels: Precision-machined — reduces
  turbulence and improves volumetric efficiency at
  rated output
• Sealing System: Durable — maintains integrity
  in hot-water and chemical-assisted
  cleaning applications
• Oil Management: Oil sight glass and vented
  dipstick for fast daily level checks and
  crankcase pressure control
• Warranty: 5-year manufacturer warranty

What’s Included with the RKV4G40HD-F24

Factory-Assembled and Ready for Engine Mounting

• Factory-assembled RKV4G40HD-F24 pump with
  break-in oil installed — ready for immediate engine
  mounting without sourcing initial
  oil fill separately
• Oil sight glass — quick visual crankcase oil
  level check before each operating shift without
  tools or disassembly
• Vented dipstick — proper crankcase ventilation
  and secondary oil level verification for complete
  daily service checks
• Comprehensive operator’s manual and exploded parts
  schematic — installation reference, maintenance
  procedures, and parts identification for the
  life of the pump
• Warranty documentation — 5-year manufacturer
  coverage for service and support reference

How the RKV4G40HD-F24 Works

F24 Direct-Drive Architecture for 4,000 PSI High-Speed Industrial Output

The RKV4G40HD-F24 uses a triplex plunger layout where three
ceramic plungers operate in a synchronized reciprocating sequence driven directly
by the engine crankshaft through the F24 flange and 1-inch hollow keyed shaft —
no belt, no pulley, no intermediate drive component between engine rotation and
pump plunger motion. Each cylinder draws water through stainless steel inlet valves
and discharges at rated 4,000 PSI through stainless discharge valves in an
overlapping three-cylinder cycle that produces steady, low-pulsation output with
the stable pressure curve that protects surface cleaners, hose assemblies, spray
guns, and downstream accessories from hydraulic fatigue across long
industrial operating shifts.

Bronze connecting rods distribute crankshaft load evenly across
the plunger assembly during long 3,400 RPM duty cycles — bronze’s corrosion
resistance and bearing properties make it the correct material for sustained
high-speed industrial crank-to-plunger power transmission at 4,000 PSI where
aluminum rod alternatives would accumulate fatigue damage at the
bearing interface.

The oil-bath crankcase provides continuous lubrication to all
drivetrain components throughout operation — at 3,400 RPM the bearing surfaces,
connecting rod journals, and crankshaft contact points require constant oil film
coverage rather than the splash lubrication adequate for slower-speed pump designs.
The reinforced crankcase construction dissipates heat generated
during high-speed operation and stabilizes internal components against the
vibration loads that 3,400 RPM gas and diesel engine drive systems transmit
through the F24 direct-drive interface.

Precision-machined hydraulic channels within the manifold reduce
internal turbulence at the transition points between plunger discharge and valve
seat — smoother internal flow paths improve volumetric efficiency and reduce the
pressure drop variations that create pulsation at high operating speeds.

RKV4G40HD-F24 Key Benefits

Direct-Drive Advantages for Industrial Gas and Diesel Engine Systems

• F24 direct-drive eliminates belt maintenance entirely:
  no belts to align, tension, inspect, or replace — the
  RKV4G40HD-F24’s direct engine mount removes the most
  common mechanical maintenance requirement from
  professional contractor and industrial
  pressure washer systems
• 1-inch hollow keyed shaft for secure engine coupling:
  stable torque transfer interface that engages directly with
  compatible gas and diesel engine output shafts — the hollow
  keyed design provides more secure engagement than
  solid shaft adapter configurations on
  direct-drive applications
• 4,000 PSI at 3,400 RPM for responsive high-speed
  performance: fast cycle rate delivers quick pressure
  response and high job throughput for time-sensitive service
  operations where cleaning speed directly
  impacts productivity
• Bronze connecting rods for high-speed sustained loads:
  the correct material for 3,400 RPM crank-to-plunger power
  transmission at 4,000 PSI — corrosion-resistant and
  bearing-compatible in the oil-bath crankcase environment
  across long industrial duty cycles
• Oil-bath crankcase for continuous 3,400 RPM protection:
  continuous oil film coverage at all drivetrain contact points —
  the lubrication system appropriate for high-speed direct-drive
  industrial operation rather than splash lubrication
  adequate only at lower speeds
• Precision-machined hydraulic channels improve efficiency:
  reduced internal turbulence at the manifold level produces a
  more stable pressure curve — protecting accessories from
  pulsation fatigue and improving cleaning consistency
  at rated 4,000 PSI output
• Ceramic plungers resist thermal stress at 3,400 RPM:
  at high-speed direct-drive operation, ceramic’s thermal
  resistance and hardness are especially valuable — limiting
  heat buildup in the sealing system that
  would accelerate at 3,400 RPM
  versus 1,450 RPM
• 5-year warranty on a heavy-duty direct-drive platform:
  exceptional coverage for a 3,400 RPM industrial pump —
  backed by nationwide service centers and the global
  Annovi Reverberi parts network

RKV4G40HD-F24 Typical Applications

Where F24 Direct-Drive at 4,000 PSI Delivers Industrial Results

• Industrial equipment cleaning and wash bays:
  the RKV4G40HD-F24’s direct gas or diesel engine mount and
  4,000 PSI output make it the right pump for industrial
  wash bay installations where engine-driven direct-drive
  systems are the preferred configuration
• Fleet washing: trucks, buses, utility vehicles,
  and rental fleets where consistent 4,000 PSI output across
  daily high-volume wash schedules requires the reliability
  that bronze connecting rods, oil-bath lubrication, and
  oversized bearings provide at 3,400 RPM
• Construction equipment cleaning: loaders,
  excavators, and jobsite machinery where the direct gas
  or diesel engine drive of the RKV4G40HD-F24 matches the
  engine-powered equipment environment of construction
  sites and job yards
• Concrete and hard-surface cleaning: parking
  pads, warehouses, sidewalks, and garages where 4.0 GPM
  at 4,000 PSI supports surface cleaners and long hose
  runs efficiently from direct engine-driven
  pump systems
• Agricultural washdown: tractors, implements,
  and livestock facilities where gas or diesel engine
  availability at remote agricultural locations makes
  the F24 direct-drive configuration the practical
  pump platform choice
• Contractor wash rigs: trailer-mounted and
  skid-mounted contractor systems where the direct-drive
  F24 mount eliminates belt maintenance from the field
  service requirements of mobile professional
  pressure washer equipment

RKV4G40HD-F24 Installation & Maintenance

Best Practices for Direct-Drive F24 Systems at 4,000 PSI

• Verify F24 flange compatibility before installation:
  confirm the engine output flange matches the F24
  specification — incorrect flange engagement at 3,400 RPM
  and 4,000 PSI creates catastrophic coupling
  failure risk
• Confirm 1-inch hollow shaft engagement depth:
  verify correct axial insertion depth of the engine shaft
  into the hollow keyed interface — insufficient engagement
  concentrates stress at the shaft entry point under
  high-speed torque loads
• Check oil before every shift: use the sight
  glass for visual confirmation and the dipstick for
  secondary verification — at 3,400 RPM the oil-bath
  crankcase requires adequate oil volume for continuous
  drivetrain film coverage; inadequate oil causes
  rapid bearing failure at this
  operating speed
• Supply clean, filtered water: install an
  upstream inlet strainer to protect ceramic plungers,
  stainless valve seats, and sealing system from
  particulate contamination at
  rated 4,000 PSI
• Size unloader valve correctly: rate unloader
  for 4,000 PSI and 4.0 GPM — an incorrectly adjusted
  unloader creates pressure exceedances that stress the
  sealing system and manifold at
  3,400 RPM operating speed
• Never run dry: always confirm water supply is
  flowing before starting the engine — dry operation at
  4,000 PSI and 3,400 RPM destroys ceramic plunger
  packings immediately
• First oil change at approximately 50 hours:
  then follow Annovi Reverberi’s duty-cycle maintenance
  schedule — high-speed direct-drive industrial operation
  requires oil service attention appropriate to
  the operating intensity
• Flush after chemical applications: run clean
  water through the RKV4G40HD-F24 after detergent or
  chemical use to protect brass manifold passages and
  stainless valve seats from
  residue buildup
• Winterize before storage: drain completely
  or use pump-safe antifreeze — freeze damage to manifold
  or plunger components voids
  warranty coverage

Why Choose the Annovi Reverberi RKV4G40HD-F24

The Direct-Drive F24 Choice for 4,000 PSI Gas and Diesel Engine Systems

• F24 direct-drive is the defining specification:
  if your system uses a gas or diesel engine and you want to
  eliminate belt maintenance permanently, the RKV4G40HD-F24
  is the correct pump — direct coupling is simpler, more
  efficient, and requires less field service than
  any belt-drive alternative
• 4,000 PSI at 3,400 RPM for maximum job throughput:
  high-speed direct-drive operation delivers fast pressure
  response and high cleaning cycle rates for time-sensitive
  commercial and industrial service operations
• Oil-bath crankcase and bronze connecting rods for
  high-speed durability: the internal components
  engineered for 3,400 RPM sustained industrial loads —
  not adapted from a lower-speed platform with
  inadequate lubrication or rod
  material specification
• Precision-machined hydraulic channels — a detail that
  matters at high speed: internal flow path quality
  affects pulsation and pressure stability more significantly
  at 3,400 RPM than at 1,450 RPM — the RKV4G40HD-F24’s
  machined channels deliver the stable output curve
  that protects accessories and operators
• Annovi Reverberi engineering heritage since 1958:
  over 60 years of industrial pump manufacturing — the
  RKV4G40HD-F24 reflects the same engineering depth as
  the rest of the AR RK Series in a direct-drive
  F24 configuration
• Backed by WSHPWR: expert application support,
  engine compatibility confirmation, F24 flange fitment
  guidance, and full parts availability for the RKV4G40HD-F24
  and the complete Annovi Reverberi
  RKV pump family

The Annovi Reverberi RKV4G40HD-F24 delivers 4.0 GPM at
4,000 PSI at 3,400 RPM through an F24 direct-drive
flange and 1-inch hollow keyed shaft — a heavy-duty industrial triplex pump
built with bronze connecting rods, oil-bath crankcase, precision-machined hydraulic
channels, ceramic plungers, and stainless steel valves for gas and diesel engine
systems where direct-drive simplicity, 4,000 PSI industrial performance, and 5-year
warranty confidence eliminate belt maintenance from the field service equation.
Contact WSHPWR for current pricing, availability, engine flange compatibility
confirmation, and application support.