RKV45G32D-F24C2 | 4.5 GPM 3200 PSI Triplex Pump Unloader Installed

RKV45G32D-F24C2 by Annovi Reverberi — RK Series High-Flow Triplex Plunger Pump with Gymatic Unloader | 4.5 GPM | 3,200 PSI | Bronze Connecting Rods | 1″ Hollow Keyway Shaft | SAE J609A Gas and Diesel Engine Drive | No Chemical Injector

The RKV45G32D-F24C2 by Annovi Reverberi is a high-flow RK Series triplex ceramic plunger pump engineered for gas and diesel engine-driven commercial and industrial pressure washing systems requiring 4.5 GPM high-volume output at 3,200 PSI with dependable Gymatic bypass pressure regulation and straight high-pressure water delivery. Rated at 4.5 GPM and 3,200 PSI at 3,400 RPM, the RKV45G32D-F24C2 delivers 14,400 cleaning units — combining the elevated flow volume of 4.5 GPM with 3,200 PSI pressure output for fast, high-impact cleaning with outstanding rinse volume and surface coverage speed on large commercial surfaces — through a reinforced crankcase with bronze connecting rods, solid ceramic plungers, machined brass manifold, stainless steel check valves, and an F24 SAE J609A direct-drive flange for close-coupling to gasoline or diesel engines.

The RKV45G32D-F24C2 is a high-flow 4.5 GPM platform — delivering the same 14,400 cleaning units as a 4.0 GPM / 3,600 PSI pump but achieving that output through elevated flow volume rather than higher pressure. This flow-forward approach translates to wider spray pattern coverage, faster rinsing speed on large surface areas, and better compatibility with high-flow accessories such as 20″+ surface cleaners, undercarriage tools, and wide-angle rinse bars. The factory-matched Gymatic (C2) unloader operates with a comfortable 450 PSI of headroom below its 3,650 PSI rated ceiling at this pump’s 3,200 PSI operating point. No chemical injector — chemical delivery managed externally.

Built by Annovi Reverberi in Modena, Italy — with US-based operations, a domestic parts distribution network, and dedicated AR North America technical support — the RKV45G32D-F24C2 arrives as a complete, factory-tested assembly. Pre-filled with AR break-in oil, equipped with the factory-matched Gymatic C2 unloader, and packaged with mounting bolts and fasteners, a vented dipstick, operator’s manual, and full parts schematic, this pump is ready to install from the moment it arrives. Protected by a 5-year US limited warranty through AR North America and built to be fully rebuilt rather than replaced, the RKV45G32D-F24C2 is a long-term investment in a high-output RK Series commercial pump platform capable of a decade of productive service life.

Factory-Matched and Approved — The RKV45G32D-F24C2 Complete Assembly Advantage

No Mismatches. No Guesswork. No Warranty Risk. Just Install and Run.

Every RKV45G32D-F24C2 ships as a factory-matched, factory-approved, and factory-installed complete pump and unloader assembly — the Gymatic C2 unloader selected, calibrated, and installed by Annovi Reverberi specifically for this pump’s 4.5 GPM / 3,200 PSI operating point:

• Factory-matched for 4.5 GPM — the C2 unloader on the RKV45G32D-F24C2 is calibrated for the pump’s elevated 4.5 GPM flow rate. Bypass flow capacity, pressure regulation response, and internal recirculation characteristics are factory-engineered to match this specific output — not approximated from a 4.0 GPM configuration.
• Factory-approved configuration — the complete RKV45G32D-F24C2 assembly is validated and approved by AR North America for this duty point. Operating with the factory-installed components maintains full 5-year warranty coverage. Substituting aftermarket or mismatched unloader components rated for lower flow volumes can void warranty protection and produce unpredictable pressure behavior at 4.5 GPM.
• Factory-installed and tested — every RKV45G32D-F24C2 exits the AR manufacturing facility with the C2 unloader mounted, calibrated, and load-tested at 50%, 100%, and 150% of rated output. No field assembly, no calibration guesswork, no first-run uncertainty.
• Eliminates component mismatch returns — using an unloader rated for 4.0 GPM on a 4.5 GPM pump is one of the most common causes of unstable pressure behavior and warranty disputes on high-flow RK Series builds. The factory-matched RKV45G32D-F24C2 assembly eliminates this failure mode before the pump leaves the box.
• Stress-free installation — mount the pump to the engine, connect system hoses and inlet supply, add fuel, and start. The RKV45G32D-F24C2 arrives engineered, assembled, and ready. No additional component sourcing, no assembly variables, no first-run surprises.

Decoding the RKV45G32D-F24C2 Model Number

What Every Segment of This AR Pump Designation Tells You

• RKV — Pump series: RK Series triplex plunger pump — AR’s industrial pump platform with reinforced crankcase and front-access piston packing and valve serviceability
• 45G32 — Performance rating: 4.5 GPM flow rate at 3,200 PSI maximum operating pressure — 14,400 cleaning units. The “45” prefix encodes 4.5 GPM per AR model code convention; “32” encodes 3,200 PSI.
• D — Shaft version: Direct Gas/Diesel Drive — 1″ hollow keyway crankshaft bore for direct coupling to gasoline or diesel engine 1″ output shafts
• F24 — Flange type: SAE J609A direct-drive flange for RK Series ‘D’ version pumps — close coupling to gas or diesel engines with a 1″ I.D. cylindrical shaft (AR part AR41866)
• C2 — Unloader code: Gymatic (C2 = Gymatic per AR suffix designation) — Gymatic 3/B series internal bypass unloader, brass body, adjustable pressure regulation, rated to 3,650 PSI. At 3,200 PSI the C2 provides 450 PSI of operating headroom — within AR’s accepted variance; factory-matched to this pump’s 4.5 GPM flow rate.
• No trailing I suffix — model terminates at C2, confirming straight 3,200 PSI water output without a factory-installed downstream chemical injector
• No “A” designation — no aluminum rod code in the model number; this pump uses bronze connecting rods — the correct specification for the RKV45G32D-F24C2

Key Specifications

RKV45G32D-F24C2 Technical Details at a Glance

• Flow Rate: 4.5 GPM (gallons per minute)
• Maximum Pressure: 3,200 PSI
• Cleaning Units: 14,400 (GPM × PSI)
• Operating Speed: 3,400 RPM
• Pump Type: RK Series triplex ceramic plunger pump — three-piston crankshaft-driven design for smooth, low-pulsation high-pressure output
• Crankshaft Bore: 1″ hollow keyway — direct engagement with gas or diesel engine 1″ output shaft
• Crankcase: Reinforced — RK Series construction for continuous commercial duty
• Manifold Material: Precision-machined brass — corrosion-resistant construction for sustained 3,200 PSI cycle integrity
• Plungers: Solid ceramic — exceptional hardness, wear resistance, and thermal shock resistance across extended commercial operating hours
• Connecting Rods: Bronze — premium fatigue strength and wear resistance at 4.5 GPM / 3,200 PSI continuous duty cycles
• Valves: Stainless steel check valves — precise seating geometry and rapid response under high-frequency trigger cycling
• Serviceability: Front-access piston packings and valve assemblies for simplified field maintenance
• Lubrication: Oil-bath crankcase lubrication with vented dipstick and sight glass
• Flange: F24 — SAE J609A direct-drive flange, RK Series ‘D’ version, 1″ shaft, gas and diesel engine compatible (AR part AR41866)
• Unloader System: Gymatic (C2 code) — brass-body internal bypass unloader, adjustable pressure regulation, rated to 3,650 PSI; 450 PSI operating headroom above 3,200 PSI; factory-matched to 4.5 GPM flow rate
• Chemical Injector: Not included — no factory-installed downstream injector; chemical delivery managed externally
• Warranty: 5-year limited warranty — US-based coverage through AR North America; maintained with factory-installed components

What’s Included in the Box

A Complete, Factory-Configured RKV45G32D-F24C2 Assembly Ready for Installation

• Factory-matched Gymatic C2 unloader — selected, calibrated, and installed by AR North America for the RKV45G32D-F24C2’s 4.5 GPM / 3,200 PSI operating point; no downstream injector port on this variant
• AR factory break-in oil — crankcase pre-filled to the correct operating level for first startup
• Vented dipstick — fast, accurate crankcase oil level checks with proper crankcase pressure relief
• Clear oil sight glass — at-a-glance visual verification of crankcase lubrication level
• Mounting bolts and fasteners — hardware sized for F24 SAE J609A direct-drive flange installation on compatible 1″ shaft gas or diesel engines
• Operator’s manual — complete installation, startup, operating, and maintenance procedures for the RKV45G32D-F24C2 including oil change intervals, water supply requirements, and winterization protocol
• Parts schematic — exploded-view diagram with AR part numbers for every serviceable RKV45G32D-F24C2 component
• Factory test certification — every RKV45G32D-F24C2 load-tested at 50%, 100%, and 150% of rated output before leaving the AR manufacturing facility

4.5 GPM — High-Flow Output at 3,200 PSI

Wider Coverage. Faster Rinsing. 14,400 Cleaning Units Through Elevated Volume.

The RKV45G32D-F24C2‘s 4.5 GPM output delivers operational advantages that directly translate to productivity on large-surface commercial jobs:

• 14,400 cleaning units from a high-flow platform — the RKV45G32D-F24C2 achieves 14,400 CU through 4.5 GPM volume at 3,200 PSI — the same cleaning unit total as a 4.0 GPM / 3,600 PSI pump, but delivered through higher flow rather than higher pressure. This means faster coverage speed, wider spray fan, and more water volume per pass for faster rinse performance on large surfaces.
• Accessory compatibility at 4.5 GPM — the RKV45G32D-F24C2’s elevated flow volume supports high-flow accessories including large surface cleaners, undercarriage tools, wide-angle rinse bars, and rotary nozzles designed for 4.5 GPM class systems when correctly nozzled for 3,200 PSI
• Faster fleet wash throughput — 4.5 GPM rinse volume moves more water per minute across truck panels, trailer sides, and bus surfaces than lower-flow alternatives at the same pressure, reducing total wash cycle time per vehicle
• Smooth triplex low-pulsation output — consistent discharge pressure at 4.5 GPM across the full spray pattern reduces streaking and rework on large pad and wall areas, improving productivity on multi-hour jobs

The Gymatic Unloader — Factory-Matched for 4.5 GPM at 3,200 PSI

450 PSI Headroom. Adjusted for Elevated Flow. Clean Water Output.

• 450 PSI headroom — stable operating zone — the C2 at 3,200 PSI operates within its rated ceiling with comfortable headroom, producing stable, responsive bypass regulation throughout continuous production wash cycles on the RKV45G32D-F24C2
• Factory-calibrated for 4.5 GPM bypass volume — the C2 unloader on the RKV45G32D-F24C2 is factory-adjusted for this pump’s elevated 4.5 GPM output, ensuring bypass response and pressure transitions are correct for the higher flow volume
• Adjustable then tamper-resistant — operating pressure set on-site and locked before production, maintained consistently across every operator and every job cycle without re-adjustment or drift
• Smooth internal bypass at 4.5 GPM — trigger-off bypass smoothly redirects the full 4.5 GPM flow, preventing deadhead pressure spikes during idle intervals. Minimize extended trigger-off idle time to prevent heat buildup in the bypass circuit.
• No factory-installed downstream injector — the RKV45G32D-F24C2 delivers straight 3,200 PSI water output. Chemical delivery managed externally through a dedicated downstream injector, soft wash proportioner, or separate chemical system.
• Engine load reduction in bypass — reduced back-pressure lowers engine load and fuel consumption during trigger-off idle intervals on full-day wash operations

RK Series Construction — Bronze Rods, Ceramic Plungers, Front-Access Service

• Solid ceramic plungers provide excellent dimensional stability under load on the RKV45G32D-F24C2, maintaining sealing performance and volumetric efficiency across extended commercial operating hours. Individual replacement when service limits are reached.
• Bronze connecting rods on the RKV45G32D-F24C2 provide strength, stability, and fatigue resistance for the reciprocating loads of high-speed triplex operation at 4.5 GPM / 3,200 PSI
• Precision-machined brass manifold resists corrosion and maintains dimensional stability under repeated high-pressure cycles and thermal variation in demanding commercial cleaning environments
• Stainless steel check valves deliver consistent seating and rapid pressure recovery under the high-frequency trigger cycling of 4.5 GPM commercial production wash operations on the RKV45G32D-F24C2
• Triplex three-plunger design produces smooth, low-pulsation flow that reduces vibration and component fatigue on hoses, spray guns, surface cleaners, and fittings connected to the RKV45G32D-F24C2

Front-Access Serviceability and Maintenance

Protecting the RKV45G32D-F24C2 Investment Through Planned Maintenance

• Front-access piston packings and valve assemblies — packing and valve service on the RKV45G32D-F24C2 is accessible from the front of the pump without full crankcase disassembly, reducing service time in commercial and field environments
• Oil sight glass and vented dipstick — daily oil level confirmation and simplified oil change procedures without removing the RKV45G32D-F24C2 from service
• Oil service on schedule — break-in oil change at 50 hours; full service every 500 hours or 3–5 months. Clean oil and correct level protect bearings and crankshaft components.
• Water supply — ensure inlet supply consistently exceeds 4.5 GPM to prevent cavitation. A 50-mesh minimum inlet strainer protects valve seats and packing at the RKV45G32D-F24C2’s elevated flow demand.
• Winterization is mandatory — protect the RKV45G32D-F24C2 with RV-grade environmentally safe antifreeze for storage and transport in cold conditions

Typical Applications

Where the RKV45G32D-F24C2 Delivers Best Results

• Fleet cleaning — trucks, buses, delivery vans, and commercial vehicles where the RKV45G32D-F24C2’s 4.5 GPM high-flow output accelerates rinse cycles and reduces per-vehicle wash time with chemical applied through an external downstream system
• Construction equipment — bulldozers, skid steers, excavators, and loaders where 3,200 PSI cutting force and 4.5 GPM rinse volume efficiently handle mud, concrete, and heavy grime contamination
• Agricultural operations — tractors, sprayers, harvesters, and barn facilities where the RKV45G32D-F24C2’s elevated flow volume handles large agricultural surfaces faster than lower-GPM alternatives
• Concrete and paved surfaces — sidewalks, driveways, pads, and large paved areas where 14,400 CU high-flow output and wide spray coverage maximize productivity on production cleaning days
• Industrial facilities — machinery, work areas, and wash bays in factories and warehouses where continuous-duty 4.5 GPM throughput and front-access serviceability minimize wash time and maintenance downtime
• Mobile contractor rigs — trailer- and truck-mounted wash systems where the RKV45G32D-F24C2’s factory-matched C2 assembly, compact F24 direct-drive footprint, and high-flow 4.5 GPM output support diverse professional cleaning operations

For operators who prefer a fully configured direct-drive system rather than a bare pump assembly, WSHPWR also carries complete gas and diesel engine pump packages ready to mount on a frame or trailer.

5-Year US Warranty, Full Rebuildability, and Wholesale Pricing

High-Flow RK Series Performance Backed by Domestic Support

The RKV45G32D-F24C2 is protected by Annovi Reverberi’s 5-year limited warranty through AR North America’s US-based warranty and service network. Warranty coverage is maintained by operating the RKV45G32D-F24C2 with the factory-installed components and following published installation and maintenance requirements. Every internal wear component — solid ceramic plungers, bronze connecting rods, precision brass manifold seals and o-rings, stainless check valve seats and springs, Gymatic C2 unloader service parts, piston packing kits, and crankcase bearings — is stocked domestically through AR’s authorized distribution channels. Contractors, rental fleet operators, municipal purchasing departments, resellers, and volume buyers are invited to contact the WSHPWR wholesale team for pricing on the RKV45G32D-F24C2 and the complete Annovi Reverberi pump and unloader assembly line. WSHPWR maintains one of the most complete AR North America inventories available through any US web store — with thousands of AR products in stock and a continually expanding catalog.

14,400 Cleaning Units. 4.5 GPM. 3,200 PSI. Factory-Matched C2. High-Flow Platform. No Injector.

Italian Engineering. High-Volume Flow-Forward Performance. Factory-Approved Assembly. US Warranty Coverage.

For contractors, fleet operators, industrial maintenance teams, and OEM rig builders who need 4.5 GPM high-flow output at 3,200 PSI — in a factory-matched, factory-approved, and factory-tested complete pump and unloader assembly that delivers 14,400 cleaning units through elevated volume for faster rinse cycles and wider surface coverage, eliminates component mismatch risk, and maintains full 5-year warranty protection from day one — the RKV45G32D-F24C2 delivers a properly engineered, stress-free high-flow solution from one of the global pressure pump industry’s most trusted manufacturers. Fourteen thousand four hundred cleaning units. Direct drive. One-inch keyway shaft. Factory-matched Gymatic C2 bypass. Bronze connecting rods. No fixed injector. Front-access service design. Five years of US warranty. A decade of service life.

Volume buyers, resellers, and rental fleet operators can reach the WSHPWR wholesale team directly at wholesale@wshpwr.com to discuss pricing for quantity purchases across the complete Annovi Reverberi lineup — including pumps, unloader assemblies, and service parts.