RKV35G40HF24C1I 3.5 GPM 4000 PSI Triplex Pump | 3400 RPM

RKV35G40HF24C1I by Annovi Reverberi — RK Series High-Pressure Triplex Plunger Pump with Gymatic VR35 Unloader and Chemical Injector | 3.5 GPM | 4,000 PSI | Bronze Connecting Rods | 1″ Hollow Keyway Shaft | SAE J609A Gas and Diesel Engine Drive

The RKV35G40HF24C1I by Annovi Reverberi is a high-pressure RK Series triplex ceramic plunger pump engineered for gas and diesel engine-driven commercial and industrial pressure washing systems requiring 3.5 GPM at 4,000 PSI with the elevated bypass regulation capacity of the Gymatic VR35 unloader and factory-integrated downstream chemical application capability. Rated at 3.5 GPM and 4,000 PSI at 3,400 RPM, the RKV35G40HF24C1I delivers 14,000 cleaning units — combining 3.5 GPM focused output with 4,000 PSI maximum penetrating impact that handles the toughest commercial contamination — through a reinforced crankcase with bronze connecting rods, solid ceramic plungers, precision-machined brass manifold, stainless steel check valves, and an F24 SAE J609A direct-drive flange for close-coupling to gasoline or diesel engines.

The RKV35G40HF24C1I carries the C1 unloader designation — confirming the Gymatic VR35 (AR22287), AR’s elevated-capacity Gymatic unloader rated to 4,000 PSI and 5 GPM. The Gymatic VR35 is AR North America’s approved specification for this 4,000 PSI operating point, combined with the active factory-integrated I-series downstream chemical injector for the complete two-mode wash platform — 4,000 PSI high-pressure rinse and low-pressure detergent pre-soak — from a single factory-configured, factory-approved assembly.

Built by Annovi Reverberi in Modena, Italy — with US-based operations, a domestic parts distribution network, and dedicated AR North America technical support — the RKV35G40HF24C1I arrives as a complete, factory-tested assembly. Pre-filled with AR break-in oil, equipped with the factory-matched Gymatic VR35 C1I unloader and active downstream chemical injector, 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 RKV35G40HF24C1I is a long-term investment capable of a decade of productive commercial service life.

Factory-Matched and Approved — The RKV35G40HF24C1I Complete Assembly Advantage

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

Every RKV35G40HF24C1I ships as a factory-matched, factory-approved, and factory-installed complete pump and unloader assembly — the Gymatic VR35 unloader and integrated I-series chemical injector selected, calibrated, and installed by Annovi Reverberi specifically for this pump’s 3.5 GPM / 4,000 PSI operating point:

• Factory-matched VR35 and injector for 4,000 PSI — the C1I assembly on the RKV35G40HF24C1I is factory-calibrated for the 3.5 GPM / 4,000 PSI duty point. The VR35 is AR’s approved unloader specification at this operating pressure, with bypass response, pressure regulation, and chemical injector draw characteristics all factory-engineered as a complete system.
• Factory-approved configuration — the complete RKV35G40HF24C1I 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 unloader or injector components voids warranty protection and may produce unsafe behavior at 4,000 PSI.
• Factory-installed and tested — every RKV35G40HF24C1I undergoes factory testing at half load, full load, and up to 150% of rated capacity to verify flow, pressure, and leak-free operation before shipment. The pump arrives verified and ready for service.
• Eliminates component mismatch returns — incorrectly specified or separately sourced unloader and injector components are a common source of performance problems and warranty disputes on 4,000 PSI builds. The factory-matched RKV35G40HF24C1I assembly eliminates these failure modes before the pump leaves the box.
• Stress-free installation — mount the pump to the engine, connect system hoses, connect the detergent supply line to the injector port, add fuel, and start. The RKV35G40HF24C1I arrives engineered, assembled, and ready for immediate field deployment.

Decoding the RKV35G40HF24C1I 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
• 35G — Flow rate: 3.5 GPM
• 40 — Maximum pressure: 4,000 PSI — 3.5 × 4,000 = 14,000 cleaning units
• H — Pump variant designation: specific pump head or construction variant per AR model code. Verify exact H designation with AR North America for this model.
• F24 — Flange type: SAE J609A direct-drive flange — close coupling to gas or diesel engines with a 1″ I.D. cylindrical shaft (AR part AR41866)
• C1 — Unloader variant: Gymatic VR35 (AR22287) — AR’s elevated-capacity Gymatic unloader rated to 4,000 PSI and 5 GPM. AR North America’s approved unloader specification for this 4,000 PSI operating point.
• I — Chemical injector: Included — I-series downstream soap and chemical injector factory-integrated into the Gymatic VR35 assembly, enabling low-pressure detergent application without a separate injector fitting

The RKV H-Series 4,000 PSI Family — Three Configurations

The RKV 3.5 GPM / 4,000 PSI H-series family offers three factory-matched configurations on the same platform:

• RKV35G40HF24VR3 — Gymatic VR35, no chemical injector. Straight 4,000 PSI water output. Correct for external chemical management.
• RKV35G40HF24C2I — C2 Gymatic with integrated chemical injector. Two-mode wash capability. AR’s approved specification for this model.
• RKV35G40HF24C1I (this model) — Gymatic VR35 (C1) with integrated chemical injector. Two-mode wash capability with the VR35 as the confirmed high-pressure unloader specification.

Key Specifications

RKV35G40HF24C1I Technical Details at a Glance

• Flow Rate: 3.5 GPM (gallons per minute)
• Maximum Pressure: 4,000 PSI
• Cleaning Units: 14,000 (GPM × PSI)
• Operating Speed: 3,400 RPM
• Pump Type: RK Series triplex ceramic plunger pump — smooth, low-pulsation high-pressure output
• Pump Variant: H designation — verify specific construction detail with AR North America
• Manifold Material: Precision-machined brass — corrosion-resistant construction for sustained 4,000 PSI cycle integrity
• Plungers: Solid ceramic — exceptional hardness, wear resistance, and thermal shock resistance across extended high-pressure commercial hours
• Connecting Rods: Bronze — premium fatigue strength and wear resistance at 3.5 GPM / 4,000 PSI continuous duty cycles
• Valves: Stainless steel check valves — pre-installed for reliable sealing under continuous high-pressure operation
• Serviceability: Front-access piston packings and valve assemblies; oil sight glass and vented dipstick
• Lubrication: Oil-bath crankcase for continuous bearing and journal lubrication
• Flange: F24 — SAE J609A direct-drive flange, 1″ shaft, gas and diesel engine compatible (AR part AR41866)
• Unloader System: Gymatic VR35 (C1 code, AR22287) with integrated I-series downstream chemical injector — brass body, adjustable pressure regulation, rated to 4,000 PSI and 5 GPM; factory-matched and factory-installed as AR’s approved specification for this 4,000 PSI model
• Chemical Injector: Included — I-series downstream venturi injector factory-integrated into Gymatic VR35 assembly
• 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 RKV35G40HF24C1I Assembly Ready for Immediate Service

• Factory-matched Gymatic VR35 C1I unloader with active chemical injector (AR22287) — selected, calibrated, and installed by AR North America for the RKV35G40HF24C1I’s 3.5 GPM / 4,000 PSI operating point; injector port ready for detergent supply line connection
• 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
• Stainless steel check valves and premium-quality packings — factory-installed for reliable sealing and consistent pressure from first startup on the RKV35G40HF24C1I
• 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 RKV35G40HF24C1I including oil change intervals, chemical injector care, and winterization protocol
• Parts schematic — exploded-view diagram with AR part numbers for every serviceable RKV35G40HF24C1I component
• Factory test certification — every RKV35G40HF24C1I tested at 50%, 100%, and 150% of rated output before leaving the AR manufacturing facility

Gymatic VR35 C1I — Factory-Approved Two-Mode Platform at 4,000 PSI

Maximum Pressure. Integrated Chemical Feed. Factory-Matched and Approved.

The Gymatic VR35 (AR22287) with active I-series injector on the RKV35G40HF24C1I is AR North America’s approved unloader specification for this 4,000 PSI operating point, factory-calibrated and factory-installed as the correct assembly for this pump:

• AR-approved specification at 4,000 PSI — the Gymatic VR35 (C1) is AR North America’s confirmed unloader for the RKV35G40HF24C1I’s 4,000 PSI operating point. Do not substitute the factory-installed unloader without AR North America guidance, as doing so voids warranty coverage and may affect system safety at maximum operating pressure.
• I-series venturi-driven downstream injection — the factory-integrated injector draws detergent, degreaser, or pre-soak solution from a supply container when the RKV35G40HF24C1I operator switches to low-pressure application mode. No separate injector hardware or additional plumbing required.
• Two-mode workflow at 3.5 GPM / 4,000 PSI — chemical pre-soak breaks down heavy grease, road film, concrete residue, and industrial contamination; full 4,000 PSI / 3.5 GPM rinse removes loosened material at 14,000 cleaning units of maximum-pressure output. Switch between modes without changing equipment or tools on the RKV35G40HF24C1I.
• Simplified plumbing — combining VR35 pressure regulation and chemical injection in a single factory-installed unit on the RKV35G40HF24C1I reduces total fitting count, minimizes potential leak points, and simplifies troubleshooting
• 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 bypass at 3.5 GPM — trigger-off bypass smoothly redirects the full 3.5 GPM flow at maximum pressure, protecting the pump from dead-heading during idle intervals. Minimize extended trigger-off idle time.
• Injector maintenance — flush the RKV35G40HF24C1I injector circuit with clean water after every detergent session to preserve long-term venturi function as detailed in the operator’s manual

RK Series Construction — Built for 4,000 PSI Maximum Pressure Commercial Duty

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

• Solid ceramic plungers reduce heat, friction, and wear on packings on the RKV35G40HF24C1I, extending seal life and keeping maintenance intervals predictable in continuous 4,000 PSI commercial environments. Individual replacement when service limits are reached.
• Bronze connecting rods provide strength and fatigue resistance for extended run times on the RKV35G40HF24C1I in busy wash bays and mobile contractor rigs at 4,000 PSI continuous duty
• Precision-machined brass manifold maintains accurate internal flow paths and excellent corrosion resistance on the RKV35G40HF24C1I, even in wet, chemical-rich environments
• Stainless steel check valves maintain tight sealing at 4,000 PSI, helping the RKV35G40HF24C1I hold its performance curve across years of maximum-pressure commercial operation
• Triplex three-plunger design minimizes pulsation on the RKV35G40HF24C1I, helping spray guns, hoses, and accessories last longer while delivering a consistent spray pattern that speeds up 4,000 PSI cleaning tasks

Front-Access Serviceability and Maintenance

Designed for Easy Integration and Routine Service

• Front-access piston packings and valve assemblies — straightforward service access on the RKV35G40HF24C1I with widely available AR replacement parts, accessible from the front of the pump with standard tools without full crankcase disassembly
• Oil sight glass and vented oil-bath crankcase — daily oil level confirmation at a glance and simplified oil changes on the RKV35G40HF24C1I without removing the pump 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 are critical for bearing integrity at 4,000 PSI maximum operating pressure.
• Chemical injector circuit flushing — flush the RKV35G40HF24C1I injector circuit with clean water after every detergent session to prevent chemical residue buildup in the venturi passage
• All accessories must be rated above 4,000 PSI — verify hoses, guns, quick couplers, and fittings are rated above the RKV35G40HF24C1I’s maximum operating pressure with appropriate safety margin
• Winterization is mandatory — protect the RKV35G40HF24C1I with RV-grade environmentally safe antifreeze for storage and transport in cold conditions to prevent cracked manifolds and destroyed seals

Typical Applications

Where the RKV35G40HF24C1I Delivers Best Results

• Fleet maintenance — trucks, buses, and delivery vehicles including frames, wheel wells, and undercarriages where the RKV35G40HF24C1I’s 4,000 PSI impact with integrated detergent capability handles heavy road film and grease efficiently
• Construction equipment — loaders, excavators, skid steers, and jobsite tools where 4,000 PSI maximum pressure with chemical pre-treatment through the factory-integrated injector removes concrete splatter, clay, and hydraulic oil contamination
• Agricultural operations — tractors, implements, trailers, and livestock equipment where the RKV35G40HF24C1I’s integrated injection and maximum pressure handle mud, manure, and fertilizer contamination on gas or diesel engine-powered rigs
• Industrial wash systems — factory wash bays, maintenance shops, and plant-floor cleanup where the RKV35G40HF24C1I’s 4,000 PSI two-mode capability and front-access serviceability support maximum uptime in continuous-duty environments
• Marine and mobile washdown — dockside cleaning, boat yards, and trailer-mounted contractor rigs where 4,000 PSI focused impact with on-demand chemical application serves the full range of commercial and municipal cleaning requirements

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

Maximum-Pressure RK Series Performance Backed by Domestic Support

The RKV35G40HF24C1I 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 RKV35G40HF24C1I with the factory-installed components and following published installation and maintenance requirements. Every internal wear component — solid ceramic plungers, bronze connecting rods, brass manifold seals and o-rings, stainless check valve seats and springs, Gymatic VR35 unloader service parts (AR22287), 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 RKV35G40HF24C1I 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.

14,000 Cleaning Units. 4,000 PSI. 3.5 GPM. VR35 Factory-Approved. Two-Mode Chemical Capability.

Italian Engineering. Maximum-Pressure Factory-Approved Assembly. Integrated Chemical Feed. US Warranty Coverage.

For contractors, fleet operators, industrial maintenance teams, agricultural operations, and marine facility professionals who need 3.5 GPM at 4,000 PSI maximum operating pressure — in a factory-matched, factory-approved, and factory-tested complete pump and unloader assembly with the Gymatic VR35 as AR’s confirmed specification at 4,000 PSI, integrated I-series downstream chemical injection for two-mode wash capability, factory testing at 150% rated output, and full 5-year US warranty protection — the RKV35G40HF24C1I delivers the highest-specification two-mode platform in the RK Series H-family. Fourteen thousand cleaning units. Direct drive. One-inch keyway shaft. Factory-matched VR35 bypass with integrated 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.