RF36.400N | Industrial Triplex Pump, 9.5 GPM 5800 PSI, 30mm Shaft

RF36.400N Industrial Triplex Plunger Pump — 9.5 GPM @ 1450 RPM | 11.5 GPM @ 1750 RPM | 5800 PSI

The AR RF36.400N is a high-output industrial triplex plunger pump from
Annovi Reverberi’s Series 538 RF platform, purpose-built for large-area industrial
cleaning, heavy equipment washdown, surface preparation, and process facility
maintenance that demands sustained high-flow, high-pressure performance across
continuous operational shifts. The RF36.400N is dual-rated — delivering
9.5 GPM at 1450 RPM or 11.5 GPM at 1750 RPM, both at
a maximum of 5800 PSI (400 Bar) — giving system designers and OEM
builders the flexibility to optimize throughput 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 RF36.400N
delivers the volumetric output, pressure consistency, and mechanical endurance that
industrial contractors, fleet maintenance operations, process facilities, and
environmental service providers rely on shift after shift. At 48.5 lbs with a compact
industrial footprint, it integrates cleanly into belt-drive, gearbox, and hydraulic
motor configurations across a wide range of skid, trailer, and fixed-plant
installation formats.

RF36.400N Dual-Speed Performance Specifications

• Max Flow @ 1450 RPM: 9.5 GPM (36 L/min) — standard operating
  speed for belt-drive diesel, electric motor, and gearbox-driven configurations
• Max Flow @ 1750 RPM: 11.5 GPM (~43.5 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: 37.8 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: 23 mm
• Crankshaft ID Stamp: 3
• 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: 3
• Orientation: Horizontal

RF36.400N Dual-RPM Rating — System Design Guidance

• One pump, two operating points: The RF36.400N 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 RF36.400N delivers 9.5 GPM. Increasing shaft speed to 1750 RPM
  raises output to approximately 11.5 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 high flow
• 1750 RPM operation: Suited for higher-speed electric motor
  drives where maximum throughput is the priority — delivering approximately
  21% more flow from the same RF36.400N 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

RF36.400N Triplex Plunger & Wet-End Construction

• Full ceramic plungers — 22 mm bore, 23 mm stroke — deliver
  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 even at full rated output across
  extended shifts
• Inlet and discharge valves with optimized timing and porting
  support efficient filling and discharge across the full dual-speed operating
  range — maintaining volumetric efficiency 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
• Valve caps on suction and delivery sides allow direct
  access to valve assemblies for inspection and replacement without removing
  the RF36.400N from the system — significantly reducing service time
  and 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 plunger alignment
  for consistent volumetric output

RF36.400N 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 RF36.400N is mounted on steel skids, plant frames,
  trailer rigs, or mobile industrial platforms
• Oversized main bearings absorb both radial and axial loads
  generated by belt tension and high working pressure — maintaining shaft
  alignment and 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
  long component life
• Side cover oil level indicator option and rear cover oil
  drain simplify routine checks and scheduled changes without removing the
  RF36.400N 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

RF36.400N 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 — the most common drive configuration for diesel engine and
  multi-speed industrial installations
• Electric motor direct-drive and gearbox compatible: Couples
  to standard electric motors via flexible elastic couplings or gearboxes for
  fixed industrial plant installations at either rated speed
• 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, and wash bay plumbing without
  proprietary fittings or adapters
• Compact footprint at 48.5 lbs enables mounting on enclosed
  cabinets, mobile platforms, and fixed industrial frames while maintaining
  adequate clearance for safety guards and service access
• Multi-pump configurations: The RF36.400N operates as a
  single high-capacity unit or within a parallel pump arrangement for system
  redundancy, staged operation, or flow multiplication across
  large industrial facilities
• Full AR accessory compatibility: Pairs with AR unloaders,
  pressure regulators, safety relief valves, and bypass systems for complete,
  code-compliant high-pressure system builds

RF36.400N 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, especially at 1750 RPM where volumetric demand
  increases to 11.5 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, tubing, 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 RF36.400N during low-flow
  or bypass conditions at either operating speed
• Bypass cooling strategy: For systems with frequent or
  extended bypass operation at 1750 RPM, size bypass lines, tank volume,
  and cooling capacity for the higher flow rate to prevent thermal buildup
  in recirculating fluid

RF36.400N Maintenance & Serviceability

• Valve cap access points on both suction and delivery
  sides provide direct valve inspection, cleaning, and replacement access
  without removing the RF36.400N 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 and alignment at regular intervals
• Pressure trend monitoring: Declining discharge pressure
  at consistent RPM is an early indicator of valve wear, seal degradation,
  or inlet restriction — 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 — 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 — facilities running multiple
  RF Series units should standardize on common kits to streamline
  fleet service and minimize sourcing delays

Ideal Applications for the RF36.400N

• Heavy equipment and fleet washing — trucking fleets,
  bus operations, municipal vehicles, and construction equipment where
  thick deposits and road contamination must be removed rapidly at scale
• Industrial surface and floor cleaning — large concrete
  bays, loading docks, ramps, parking garages, and production floors
  where high flow and pressure shorten cleaning cycle times
• Rotary head and multi-jet bar systems — at 11.5 GPM
  and 5800 PSI at 1750 RPM, the RF36.400N delivers the hydraulic power
  required to drive large rotary tools and multi-jet manifolds for surface
  restoration and deep cleaning
• Manufacturing and process facility washdown — equipment
  washdown, pit and trench cleaning, and production floor sanitation
  in high-throughput industrial facilities
• Oil and gas service yards and tank farms — equipment
  cleaning and yard maintenance in systems designed to meet applicable
  safety and material compatibility requirements
• Environmental and remediation services — spill response,
  containment area cleanup, and recycling or transfer station maintenance
  where heavy residues require sustained high-pressure removal
• Building exterior restoration — large-scale mildew
  treatment, graffiti removal, and surface cleaning on commercial and
  industrial structures when paired with appropriate tooling

Why Choose the AR RF36.400N?

• Dual-speed flexibility from one pump: Manufacturer-approved
  9.5 GPM at 1450 RPM and 11.5 GPM at 1750 RPM — the RF36.400N gives OEM
  builders and contractors a versatile, future-ready platform that scales
  with your drive configuration
• High flow at 5800 PSI: The RF36.400N delivers the
  combination of volume and pressure needed for large rotary tools,
  multi-jet bars, and high-demand industrial cleaning that lower-flow
  pumps cannot sustain
• Proven Series 538 RF architecture: Ceramic plungers,
  brass manifold, bronze connecting rods, oversized bearings, and oil-bath
  lubrication — all engineered for continuous-duty industrial operation
• Compact and skid-ready: At 48.5 lbs with a 30 mm solid
  shaft, the RF36.400N fits a wide range of industrial drive and mounting
  configurations without special hardware or adapters
• Fast, low-tool serviceability: Valve cap access, 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 RF36.400N is engineered for the demands of serious industrial
work — delivering 9.5 GPM at 1450 RPM or 11.5 GPM at 1750 RPM, all at 5800 PSI,
from a compact, service-friendly platform trusted by industrial professionals worldwide.
Contact WSHPWR for current pricing, availability, and expert system integration support.