RF22.400N | Industrial Triplex Pump, 5.8 GPM 5800 PSI, 30mm Shaft

RF22.400N Industrial Triplex Plunger Pump — 5.8 GPM @ 1450 RPM | 7.0 GPM @ 1750 RPM | 5800 PSI

The AR RF22.400N is the entry point of Annovi Reverberi’s Series 538 RF
industrial triplex plunger pump platform — a heavy-duty, high-pressure pump engineered
to serve as the core of serious industrial cleaning, surface preparation, and equipment
washdown systems. The RF22.400N is dual-rated, delivering 5.8
GPM at 1450 RPM or 7.0 GPM at 1750 RPM, both at a maximum of
5800 PSI (400 Bar) — giving system designers and OEM builders the
flexibility to optimize output by selecting drive speed, without changing the pump.

Built on a 30 mm solid N-version shaft, a precision brass manifold,
full ceramic plungers, and bronze connecting rods, the RF22.400N
delivers the pressure consistency, mechanical endurance, and predictable maintenance
cycles that contractors, plant maintenance teams, and facility operators depend on.
At 48.5 lbs with a compact industrial footprint, the RF22.400N integrates cleanly
into belt-drive, gearbox, and hydraulic motor configurations across skid, trailer,
cabinet, and fixed-plant installation formats.

RF22.400N Dual-Speed Performance Specifications

• Max Flow @ 1450 RPM: 5.8 GPM (22 L/min) — standard operating
  speed for belt-drive diesel, electric motor, and gearbox-driven configurations
• Max Flow @ 1750 RPM: 7.0 GPM (~26.5 L/min) — increased output
  when driven by higher-speed electric motors or upgraded drive systems; approximately
  21% more throughput from the same pump
• Max Pressure: 5800 PSI (400 Bar) — consistent at both 1450
  and 1750 RPM; pressure rating does not change with shaft speed
• Dual RPM Rating: 1450 RPM (standard) | 1750 RPM (re-rated) —
  manufacturer-approved operating range; dual rating will appear in official
  AR literature in 2027
• Power @ 1450 RPM: 23.1 EBHP at full rated output
• Pump Type: Triplex plunger — three-cylinder balanced design
  for smooth, low-pulsation output and consistent volumetric efficiency
• Shaft: 30 mm solid, N (Natural) version — direct coupling
  or belt-drive sheave ready
• Bore Diameter: 22 mm | Stroke: 14.5 mm
• Crankshaft ID Stamp: 1
• Inlet: 1″ F (FNPT) | Outlet: 1/2″ F (FNPT)
• Head Material: Brass — precision-machined for sustained
  pressure integrity and chemical compatibility
• Connecting Rods: Bronze — low-friction alloy for smooth,
  durable power transfer at both rated speeds
• O-Ring Material: Buna-N — suited for water and standard
  industrial cleaning fluid service
• Max Fluid Temperature: 140°F
• Oil Capacity: 50 oz
• Weight: 48.5 lbs
• Series: 538 (RF) | Industrial | CSID Stamp: 1
• Orientation: Horizontal

RF22.400N Dual-RPM Rating — System Design Guidance

• One pump, two operating points: The RF22.400N is
  manufacturer-approved for operation at both 1450 RPM and 1750 RPM — allowing
  OEM builders and system designers to spec a single pump for two drive
  configurations or increase output without replacing hardware
• Flow scales with shaft speed; pressure is constant: At
  1450 RPM the RF22.400N delivers 5.8 GPM. Increasing shaft speed to 1750 RPM
  raises output to approximately 7.0 GPM. The 5800 PSI maximum pressure rating
  applies unchanged at both speeds
• 1450 RPM operation: Optimized for belt-drive diesel engines,
  standard-speed electric motors, and systems where lower noise, longer seal life,
  and reduced thermal load are priorities alongside reliable high-pressure output
• 1750 RPM operation: Suited for higher-speed electric motor
  drives and VFD-controlled systems where maximum throughput is the priority —
  delivering approximately 21% more flow from the same RF22.400N pump
• Drive sizing at 1750 RPM: Ensure your motor, coupling, belt,
  and sheave components are rated for the increased torque and power demand at the
  higher speed — verify EBHP requirement against your drive selection before
  commissioning
• System components at 1750 RPM: Hose, valves, unloader, and
  fittings must all be rated for 5800 PSI at the higher flow rate — verify all
  downstream component ratings before upgrading drive speed on an
  existing installation
• Note: The 1750 RPM dual rating is manufacturer-approved by
  Annovi Reverberi and will appear in official AR product literature beginning 2027

RF22.400N Triplex Plunger & Wet-End Construction

• Full ceramic plungers — 22 mm bore, 14.5 mm stroke — provide
  exceptional hardness, dimensional stability, and corrosion resistance for repetitive
  high-pressure cycling at both 1450 and 1750 RPM in continuous industrial service
• Precision brass manifold maintains sealing tolerances under
  sustained 5800 PSI pressure, thermal cycling, and long-duration operation —
  resisting distortion and internal leakage under prolonged high-load output in
  washdown and plant environments
• Inlet and discharge valves with optimized timing and porting
  support efficient filling and discharge across the full dual-speed operating range —
  maintaining volumetric efficiency and a stable flow curve at both 1450 and 1750 RPM
• Double gasket sealing system provides redundant pressure
  containment at the plunger-manifold interface — a critical reliability feature
  at sustained 5800 PSI operating pressures across long shifts
• Valve caps on suction and delivery sides allow direct access
  to valve assemblies for inspection and replacement without removing the RF22.400N
  from the system — significantly reducing service time and minimizing downtime costs
• Bronze connecting rods driven by a precision-ground crankshaft
  deliver smooth, durable power transfer to the ceramic plungers at both rated speeds,
  maintaining accurate stroke and alignment for consistent volumetric output over
  the life of the pump

RF22.400N Crankcase, Shaft & Lubrication System

• 30 mm solid N-version crankshaft — high-strength pressed steel
  providing the torsional rigidity and dynamic balance required for sustained operation
  at up to 1750 RPM under full 5800 PSI working load
• Die-cast aluminum-alloy crankcase and side covers deliver
  structural stiffness, efficient heat dissipation, and vibration damping — essential
  when the RF22.400N is mounted on steel skids, plant frames, trailer rigs, or mobile
  industrial platforms
• Oversized main bearings carry both radial and axial forces
  generated at high pressure and during drive engagement — maintaining shaft alignment
  and extending bearing life across long service intervals at both rated operating
  speeds
• Oil-bath crankcase lubrication with 50 oz capacity keeps
  journals and bearings continuously supplied through extended high-load operation
  at 1450 and 1750 RPM — supporting stable oil temperatures and minimizing
  crankcase wear
• Side cover oil level indicator option and rear cover oil drain
  simplify routine checks and scheduled oil changes without removing the RF22.400N
  from service
• Initial oil change at 50 operating hours, then per duty-cycle
  schedule — use SAE 30 non-detergent or AR-approved pump oil for optimal crankshaft
  and bearing protection

RF22.400N System Integration & Drive Compatibility

• Belt-drive compatible: 30 mm solid shaft supports robust sheave
  and belt hardware rated for the torque demands at both 1450 and 1750 RPM — ideal
  for diesel engine and multi-speed industrial drive configurations
• Electric motor direct-drive and gearbox compatible: Couples to
  standard electric motors via flexible elastic couplings or gearboxes — including
  VFD-controlled drives that allow precise speed and duty point matching at either
  rated RPM
• Hydraulic motor drive: Supports hydraulic motor integration for
  mobile equipment and remote-mounted systems where electric power is unavailable
• FNPT threaded ports on inlet and discharge connect directly to
  existing manifolds, header systems, unloaders, and wash bay plumbing without
  proprietary fittings or adapters
• Compact footprint at 48.5 lbs supports installation on skids,
  carts, fixed bases, and enclosed cabinets — provided clearances for safety guards,
  ventilation, and service access are maintained
• Multi-pump configurations: The RF22.400N operates effectively
  as a standalone industrial pump or within a parallel pump arrangement for system
  redundancy, staged operation, or increased flow capacity across larger facilities
• Full AR accessory compatibility: Pairs with AR unloaders,
  pressure regulators, safety relief valves, and bypass systems for complete,
  code-compliant high-pressure system integration

RF22.400N Plumbing, Filtration & System Protection

• 1″ F inlet must be fed from a generously sized, low-restriction
  supply line — adequate inlet flow and pressure are essential to prevent cavitation,
  particularly at 1750 RPM where volumetric demand increases to 7.0 GPM
• Inlet filtration required: Install a minimum 20-mesh strainer
  upstream to protect ceramic plungers and brass valves from abrasive particle damage
  and accelerated wear at both rated speeds
• 1/2″ F discharge must connect to hose, pipe, and fittings rated
  for 5800 PSI working pressure with appropriate safety factors for the system design
  and applicable codes
• Unloader or pressure regulator required: System design must
  include a properly matched unloader, safety relief device, and bypass-to-tank
  arrangement to protect the RF22.400N during low-flow or bypass conditions at
  either operating speed
• Bypass cooling strategy: For systems with frequent or extended
  bypass operation, size bypass lines, tank volume, and cooling capacity to prevent
  thermal buildup in recirculating fluid — especially important during 1750 RPM
  operation where heat generation increases with flow

RF22.400N Maintenance & Serviceability

• Valve cap access points on both suction and delivery sides
  provide direct valve inspection, cleaning, and replacement access without removing
  the RF22.400N from the system or requiring full pump disassembly
• Routine service checklist: Verify oil level via side-cover
  indicator, inspect inlet filter condition, monitor discharge pressure trends, and
  check drive belt condition, coupling alignment, and mounting fasteners at
  regular intervals
• Pressure trend monitoring: Declining discharge pressure at
  consistent RPM is an early indicator of valve wear, seal degradation, or inlet
  restriction in the RF22.400N — address promptly to prevent pump damage and
  unplanned downtime
• Drive component inspection at 1750 RPM: Belt tension, sheave
  alignment, coupling fasteners, and mounting hardware experience higher dynamic loads
  at 1750 RPM than at 1450 RPM — inspect at shortened intervals when operating at
  the higher rated speed
• OEM AR seal and valve kits should be stocked as part of your
  facility’s spare parts inventory — operations running multiple RF Series units
  benefit from standardizing on common kits to streamline fleet service and eliminate
  sourcing delays during unscheduled maintenance events

Ideal Applications for the RF22.400N

• Industrial equipment washdown — conveyors, production lines,
  machinery, and plant infrastructure in manufacturing and processing facilities
  requiring high pressure and controlled, stable flow
• Equipment degreasing — machining, metalworking, and fabrication
  shops handling oils, coolants, and heavy residues that require sustained
  5800 PSI cutting power
• Surface preparation for coatings and linings — steel and
  masonry surfaces requiring aggressive profile preparation before painting,
  protective coating, or repair work
• Concrete pad, bay, and parking garage cleaning — high-impact
  pressure and steady flow that shorten cleaning cycles on large, heavily
  contaminated surfaces
• Fleet and heavy equipment cleaning — trucking, municipal,
  and rental yard operations that rely on dependable high-pressure output across
  long daily wash cycles
• Tank farm and storage facility rinsing — integrated into
  systems designed for site-specific safety and material compatibility requirements
• Contractor skids and mobile rigs — industrial service
  applications where RF22.400N pump reliability and stable high-pressure performance
  are key to crew productivity and job throughput

Why Choose the AR RF22.400N?

• Dual-speed flexibility from one pump: Manufacturer-approved
  5.8 GPM at 1450 RPM and 7.0 GPM at 1750 RPM — the RF22.400N delivers more output
  simply by upgrading drive speed, with no pump hardware changes required
• 5800 PSI from a compact, right-sized platform: The RF22.400N
  delivers serious cutting pressure without oversizing the drive package or plumbing
  system — an efficient fit for medium-to-heavy industrial cleaning applications
• Proven Series 538 RF architecture: Ceramic plungers, brass
  manifold, bronze connecting rods, oversized bearings, and oil-bath lubrication —
  all engineered and factory-tested for continuous-duty industrial operation
• Compact and skid-ready: At 48.5 lbs with a 30 mm solid shaft,
  the RF22.400N fits a wide range of industrial drive and mounting configurations
  without special hardware or adapters
• Fast, low-tool serviceability: Valve cap access on both sides,
  oil-level indicator, and standardized AR service kits keep maintenance efficient
  and turnaround times short across single-unit and multi-pump installations
• Backed by AR North America: Factory support, nationwide service
  dealer network, and full parts and kit availability across the U.S. and Canada

The AR RF22.400N is built for serious industrial work — delivering
5.8 GPM at 1450 RPM or 7.0 GPM at 1750 RPM, all at 5800 PSI, from a compact,
service-friendly platform that is the foundation of the AR RF Series lineup. Contact
WSHPWR for current pricing, availability, and expert system integration support.