RKV4G32D-F24C2G 4.0 GPM 3200 PSI Triplex Pump | 3400 RPM

RKV4G32D-F24C2G by Annovi Reverberi — RK Series Triplex Plunger Pump with Gymatic Unloader | 4.0 GPM | 3,200 PSI | Bronze Connecting Rods | 1″ Hollow Keyway Shaft | SAE J609A Gas and Diesel Engine Drive | No Chemical Injector

The RKV4G32D-F24C2G by Annovi Reverberi is a commercial-grade RK Series triplex ceramic plunger pump engineered for gas and diesel engine-driven pressure washing systems requiring 4.0 GPM high-volume output at 3,200 PSI with dependable Gymatic bypass pressure regulation and straight high-pressure water delivery. Rated at 4.0 GPM and 3,200 PSI at 3,400 RPM, the RKV4G32D-F24C2G delivers 12,800 cleaning units — combining the high-volume coverage speed of 4.0 GPM with 3,200 PSI pressure output that handles heavy contamination, grease, and large commercial surfaces more aggressively than standard 3,000 PSI platforms — through a reinforced crankcase with bronze connecting rods, solid ceramic plungers, brass manifold, stainless steel valves, and an F24 SAE J609A direct-drive flange for close-coupling to gasoline or diesel engines.

The RKV4G32D-F24C2G carries the C2G unloader designation — confirming the Gymatic assembly configuration in a non-injector arrangement, as established across other C2G-designated pumps in this product line. At 3,200 PSI the Gymatic C2G operates with a comfortable 450 PSI of headroom below its 3,650 PSI rated ceiling — the most favorable C2G pairing in the RKV commercial lineup, delivering stable, confident bypass regulation well within the Gymatic’s design envelope. No chemical injector — chemical delivery managed externally through a dedicated downstream system.

Built by Annovi Reverberi in Modena, Italy — with US-based operations, a domestic parts distribution network, and dedicated AR North America technical support — the RKV4G32D-F24C2G arrives as a complete, factory-tested assembly. Pre-filled with AR break-in oil, equipped with a Gymatic C2G 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 RKV4G32D-F24C2G is a long-term investment in a high-output RK Series commercial pump platform capable of a decade of productive service life.

Decoding the RKV4G32D-F24C2G 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 for continuous commercial duty
• 4G32 — Performance rating: 4.0 GPM flow rate at 3,200 PSI maximum operating pressure — 12,800 cleaning units
• 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)
• C2G — Unloader code: Gymatic assembly (C2 = Gymatic, G = Gymatic assembly confirmed designation) — non-injector Gymatic unloader configuration, brass body, adjustable pressure regulation, rated to 3,650 PSI. At 3,200 PSI the C2G provides 450 PSI of operating headroom — the most favorable C2G pairing in the RKV lineup, well within AR’s accepted variance.
• No trailing I suffix — model terminates at C2G, confirming straight 3,200 PSI water output without a factory-installed downstream chemical injector. Chemical delivery managed externally when required.

Key Specifications

RKV4G32D-F24C2G Technical Details at a Glance

• Flow Rate: 4.0 GPM (gallons per minute)
• Maximum Pressure: 3,200 PSI
• Cleaning Units: 12,800 (GPM × PSI)
• Operating Speed: 3,400 RPM
• Pump Type: RK Series triplex ceramic plunger pump — three-piston crankshaft-driven design for smooth, consistent 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: 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 4.0 GPM / 3,200 PSI continuous duty cycles
• Valves: Stainless steel — precise seating geometry, scale resistance, and reliable performance under continuous 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 C2G — non-injector Gymatic assembly, brass body, adjustable bypass regulation, rated to 3,650 PSI; 450 PSI operating headroom above 3,200 PSI output
• Chemical Injector: Not included — C2G is a non-injector configuration; chemical delivery managed externally
• Warranty: 5-year limited warranty — US-based coverage through AR North America

What’s Included in the Box

A Complete, Factory-Configured RKV4G32D-F24C2G Assembly Ready for Installation

• Factory-installed Gymatic C2G unloader — pre-mounted and calibrated for field-ready operation; non-injector configuration confirmed, no downstream injector port on this RKV4G32D-F24C2G 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 RKV4G32D-F24C2G including oil change intervals, water supply requirements, packing and valve service guidance, and winterization protocol
• Parts schematic — exploded-view diagram with AR part numbers for every serviceable RKV4G32D-F24C2G component
• Factory test certification — every RKV4G32D-F24C2G load-tested at 50%, 100%, and 150% of rated output before leaving the AR manufacturing facility

The Gymatic C2G Unloader — 450 PSI Headroom at 3,200 PSI

Maximum Stability. Adjustable Bypass. Non-Injector. Set It. Lock It.

The Gymatic C2G unloader on the RKV4G32D-F24C2G is rated to 3,650 PSI — operating with a full 450 PSI of headroom above 3,200 PSI. This is the most favorable Gymatic C2G pairing in the RKV commercial lineup:

• 450 PSI — maximum stability zone — the C2G at 3,200 PSI operates well below its rated ceiling, producing confident, stable bypass regulation throughout continuous production wash cycles on the RKV4G32D-F24C2G. Bypass transitions are smooth and consistent, protecting hoses, spray guns, and downstream accessories at every trigger release.
• Extended unloader service life — bypass components operating with 450 PSI of headroom experience substantially less cumulative stress than configurations operating near the rated ceiling, extending the rebuild interval on the RKV4G32D-F24C2G in high-cycle commercial environments
• 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 4.0 GPM — trigger-off bypass smoothly redirects the full 4.0 GPM flow, preventing deadhead pressure spikes during idle intervals on production wash jobs. Minimize extended trigger-off bypass time to prevent heat buildup in the bypass circuit.
• Non-injector confirmed — the C2G designation on the RKV4G32D-F24C2G explicitly confirms no built-in detergent injection. Chemical delivery managed externally through a dedicated downstream injector or soft wash system when soap application is required.
• Engine load reduction in bypass — reduced back-pressure lowers engine load and fuel consumption during trigger-off idle intervals on full-day wash operations

Water Supply Requirements — Getting the Most from the RKV4G32D-F24C2G

Stable Supply. Clean Inlet. Proper Filtration.

The RKV4G32D-F24C2G requires consistent, adequate water supply to perform at its rated output. These installation guidelines protect pump performance and extend internal component service life:

• Supply volume must exceed 4.0 GPM — insufficient inlet supply causes cavitation at the pump inlet, which accelerates valve and packing wear and causes pressure instability on the RKV4G32D-F24C2G. Tank-fed and gravity-fed systems should be sized to sustain flow above demand with margin for surge.
• Inlet filtration is routine service, not an option — a 50-mesh minimum inline strainer at the RKV4G32D-F24C2G inlet intercepts sand, scale, and debris before they reach valve seats and plunger seal interfaces. Service the strainer on the same schedule as oil changes.
• Low-restriction feed plumbing — oversized suction hose and short, straight inlet runs improve prime stability in trailer rigs, wash bays, and tank-fed setups. Hard 90° elbows immediately at the pump inlet restrict flow and contribute to cavitation risk.
• Airtight suction side — air ingestion through loose fittings, cracked hose, or an unseated inlet strainer causes pressure fluctuation and accelerated wear on the RKV4G32D-F24C2G. Inspect and retorque suction connections as part of regular service.
• Clean water practices — water with high mineral content, suspended solids, or biological growth accelerates valve and packing wear. Where supply quality is a concern, a multi-stage filtration setup upstream of the RKV4G32D-F24C2G extends service intervals significantly.

RK Series Construction — Built for 3,200 PSI High-Volume Commercial Duty

Solid Ceramic. Brass Manifold. Bronze Connecting Rods. Front-Access Service.

• Solid ceramic plungers in the RKV4G32D-F24C2G resist abrasion, heat, and chemical attack at 3,200 PSI across extended commercial operating hours. Individual replacement when service limits are reached — no full pump replacement required.
• Bronze connecting rods provide high strength and fatigue resistance under the continuous load cycling of 4.0 GPM / 3,200 PSI operation at 3,400 RPM on the RKV4G32D-F24C2G, distributing force evenly across the crankshaft
• Brass manifold provides reliable corrosion resistance and stable sealing surfaces for sustained 3,200 PSI cycling in demanding commercial cleaning environments
• Stainless steel valves maintain precise seating geometry through high-cycle 3,200 PSI / 4.0 GPM operation, resisting scale and pitting that cause pressure loss over time
• Triplex three-plunger design produces smooth, overlapping pressure pulses that reduce pulsation-induced fatigue stress on hoses, spray guns, surface cleaners, and fittings connected to the RKV4G32D-F24C2G

Front-Access Serviceability — RK Series Maintenance Advantage

Packing and Valve Service Without Full Disassembly

• Front-access piston packings — packing replacement on the RKV4G32D-F24C2G is accessible from the front of the pump without requiring full crankcase disassembly, reducing time and labor for the most frequent seal maintenance event in high-cycle commercial operation
• Front-access valve assemblies — inlet and outlet valve inspection and replacement accessible without removing the RKV4G32D-F24C2G from the engine mount in most installations, enabling valve service during scheduled maintenance windows
• Planned maintenance beats unplanned downtime — monitor the RKV4G32D-F24C2G for early signs of packing seepage during routine inspections. Minor seepage caught early and addressed during a scheduled stop costs a fraction of the downtime from a full packing failure during a production wash day.

F24 SAE J609A — Direct Drive for Gas and Diesel Engines

• Gasoline engine compatibility — direct bolt-up to commercial gas engines with a 1″ cylindrical output shaft and SAE J609A bolt pattern in the horsepower class appropriate for 4.0 GPM / 3,200 PSI loads. Verify engine horsepower before installation.
• Diesel engine compatibility — equally compatible with standard diesel engines equipped with a 1″ crankshaft and SAE J609A bolt pattern for contractor rigs and industrial equipment
• Direct close-coupling — the RKV4G32D-F24C2G mounts face-to-face against the engine with the 1″ hollow keyway crankshaft bore engaging the engine shaft directly, eliminating belt guards, pulleys, and tensioning hardware
• Compact footprint — ideal for skid frames, trailer rigs, and OEM pressure washer platforms where space and simplicity are critical
• Maintain rated RPM — operating the RKV4G32D-F24C2G at or near its rated 3,400 RPM maintains expected performance and service life. Over-speed conditions reduce packing service life; under-speed conditions reduce output pressure and flow.
• Included mounting hardware — bolts and fasteners sized for the F24 SAE J609A bolt pattern are supplied in the box with the RKV4G32D-F24C2G

Typical Applications

Where the RKV4G32D-F24C2G Delivers Best Results

• Fleet washing — trucks, buses, delivery vans, and commercial vehicles where 4.0 GPM coverage speed and 3,200 PSI cleaning force deliver repeatable high-throughput results with chemical applied through a dedicated external system on the RKV4G32D-F24C2G
• Construction equipment and jobsite washdown — equipment cleaning, concrete forms, and contractor skid systems where 12,800 CU output handles heavy contamination efficiently
• Agricultural operations — farm machinery, implements, barn cleaning, and facility sanitation where the RKV4G32D-F24C2G’s reliable 4.0 GPM output at 3,200 PSI handles large agricultural surface areas on gas or diesel engine-powered rigs
• Industrial wash bays — manufacturing plants and maintenance departments handling routine equipment wash and degreasing where the RKV4G32D-F24C2G’s front-access serviceability and continuous-duty architecture minimize maintenance downtime
• Marine environments — dock and shipyard cleaning where high-output, reliable performance is required and the RKV4G32D-F24C2G’s brass manifold and stainless valve construction provide corrosion resistance appropriate for marine water exposure
• Soft wash system rinse supply — the RKV4G32D-F24C2G provides clean 3,200 PSI / 4.0 GPM rinse water while a dedicated soft wash proportioner manages chemical delivery independently

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-Output RK Series Performance Backed by Domestic Support

The RKV4G32D-F24C2G is protected by Annovi Reverberi’s 5-year limited warranty through AR North America’s US-based warranty and service network. Every internal wear component of the RKV4G32D-F24C2G — solid ceramic plungers, bronze connecting rods, brass manifold seals and o-rings, stainless valve seats and springs, Gymatic C2G unloader service parts, piston packing kits, and crankcase bearings — is stocked domestically through AR’s authorized distribution channels.

With consistent maintenance — break-in oil change at 50 hours, scheduled oil changes every 500 hours or 3–5 months, regular valve and packing inspection using the front-access design, inlet strainer cleaning at each service interval, and proper winterization using RV-grade environmentally safe antifreeze — the RKV4G32D-F24C2G is engineered for 10 or more years of productive commercial service life. AR North America’s domestic parts depth ensures rebuild kits, plunger sets, packing kits, and Gymatic unloader service components for the RKV4G32D-F24C2G are typically available same-week.

Contractors, rental fleet operators, municipal purchasing departments, resellers, and volume buyers are invited to contact wholesale@wshpwr.com for wholesale and special pricing on the RKV4G32D-F24C2G 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.

12,800 Cleaning Units. 3,200 PSI. 4.0 GPM. Gymatic C2G. 450 PSI Headroom. Non-Injector.

Italian Engineering. High-Volume Commercial Platform. Front-Access Service. US Warranty Coverage.

For contractors, fleet operators, industrial maintenance teams, and marine facility operators who need 4.0 GPM high-volume output at 3,200 PSI — with the Gymatic C2G’s maximum 450 PSI operating headroom for the most stable bypass regulation in this pressure class, non-injector clean water output for external chemical management, RK Series reinforced crankcase with front-access piston packing and valve serviceability, and bronze connecting rods — the RKV4G32D-F24C2G delivers a factory-tested, fully documented, and completely rebuildable assembly from one of the global pressure pump industry’s most trusted manufacturers. Twelve thousand eight hundred cleaning units. Direct drive. One-inch keyway shaft. Gymatic C2G bypass. Non-injector. Front-access service design. Five years of US warranty. A decade of service life.