RKV35G35DF24C1I 3.5 GPM 3500 PSI Triplex Pump | 3400 RPM

RKV35G35DF24C1I by Annovi Reverberi — RK Series Triplex Plunger Pump with Gymatic VR35 Unloader and Chemical Injector | 3.5 GPM | 3,500 PSI | Brass Manifold | 1″ Hollow Keyway Shaft | SAE J609A Gas and Diesel Engine Drive | 11–15 HP Engine Compatible

The RKV35G35DF24C1I by Annovi Reverberi is a professional-grade RK Series triplex ceramic plunger pump engineered for direct gas and diesel engine-driven commercial and industrial pressure washing systems requiring 3.5 GPM at 3,500 PSI with the elevated bypass regulation of the Gymatic VR35 unloader and factory-integrated downstream chemical injection. Rated at 3.5 GPM and 3,500 PSI at 3,400 RPM, the RKV35G35DF24C1I delivers 12,250 cleaning units — combining 3.5 GPM focused output with 3,500 PSI impact for heavy equipment washdown, fleet vehicle cleaning, agricultural machinery, and industrial surface preparation — through a reinforced crankcase with solid ceramic plungers, heavy-duty brass manifold, high-quality seals and valves, and an F24 SAE J609A direct-drive flange for close-coupling to 11–15 HP gasoline or diesel engines.

The RKV35G35DF24C1I carries the C1 unloader designation — confirming the Gymatic VR35 (AR22287), AR’s elevated-capacity Gymatic variant rated to 4,000 PSI and 5 GPM. At 3,500 PSI the VR35 operates with a comfortable 500 PSI of headroom — the most favorable unloader pairing in the RKV35G35D family — delivering stable, confident bypass regulation and extended unloader service intervals. Combined with the factory-integrated I-series downstream chemical injector, the RKV35G35DF24C1I delivers the complete two-mode wash platform 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 RKV35G35DF24C1I arrives pre-filled with AR break-in oil, factory-tested, and ready for immediate installation. Protected by a 5-year US limited warranty through AR North America and built to be fully rebuilt rather than replaced, this pump is a long-term investment capable of a decade of productive service life.

Factory-Matched and Approved — The RKV35G35DF24C1I Complete Assembly Advantage

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

Every RKV35G35DF24C1I ships as a factory-matched, factory-approved, and factory-installed complete pump and unloader assembly:

• Factory-matched VR35 and injector for 3,500 PSI — the C1I assembly on the RKV35G35DF24C1I is factory-calibrated for this pump’s specific 3.5 GPM / 3,500 PSI duty point. VR35 bypass response, pressure regulation, and chemical injector draw characteristics are factory-set as a complete system.
• Factory-approved configuration — the complete assembly is AR North America’s validated specification for this model. Operating with the factory-installed components maintains full 5-year warranty coverage.
• Factory-installed and tested — every RKV35G35DF24C1I exits the AR manufacturing facility with the C1I assembly mounted, calibrated, and tested for flow, pressure, and leak-free operation before shipment.
• Eliminates mismatch returns — the factory-matched assembly eliminates incorrect unloader or injector specification — the most common source of system returns — before the pump leaves the box.
• Stress-free installation — mount to the engine, connect system hoses, connect the detergent supply line to the injector port, add fuel, and start. Ready from day one.

Decoding the RKV35G35DF24C1I Model Number

What Every Segment of This AR Pump Designation Tells You

• RKV — Pump series: RK Series triplex plunger pump — AR’s commercial industrial pump platform with front-access piston packing and valve serviceability
• 35G — Flow rate: 3.5 GPM
• 35 — Maximum pressure: 3,500 PSI — 3.5 × 3,500 = 12,250 cleaning units
• D — Shaft version: Direct Gas/Diesel Drive — 1″ hollow keyway crankshaft bore for direct coupling to engine output shafts per AR North America model designation convention
• 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); paired with 11–15 HP engine platforms
• C1 — Unloader variant: Gymatic VR35 (AR22287) — rated to 4,000 PSI and 5 GPM. At 3,500 PSI the VR35 provides 500 PSI of operating headroom — the most favorable margin in the RKV35G35D family.
• I — Chemical injector: Included — downstream soap and chemical injector factory-integrated into the Gymatic VR35 assembly

The RKV35G35D Family — Three Configurations

All three models share the same RK Series platform, F24 flange, 1″ keyway shaft, and 3.5 GPM / 3,500 PSI / 12,250 CU output:

• RKV35G35DF24C1I (this model) — Gymatic VR35 (C1) with integrated injector. 500 PSI headroom. The preferred two-mode specification at this pressure point for maximum unloader stability and longest service intervals.
• RKV35G35DF24C2I — Gymatic C2 with integrated injector. Two-mode wash capability.
• RKV35G35DF24C2G — Gymatic C2G with internal recirculation, no injector. Straight 3,500 PSI clean water output.

Key Specifications

RKV35G35DF24C1I Technical Details at a Glance

• Flow Rate: 3.5 GPM (gallons per minute)
• Maximum Pressure: 3,500 PSI
• Cleaning Units: 12,250 (GPM × PSI)
• Operating Speed: 3,400 RPM
• Pump Type: RK Series triplex ceramic plunger pump — three-piston crankshaft-driven design for smooth, low-pulsation output
• Crankshaft Bore: 1″ hollow keyway — direct engagement with engine 1″ output shaft
• Recommended Engine Power: 11–15 HP gasoline or diesel engines
• Manifold Material: Heavy-duty brass — corrosion-resistant and thermally stable for professional cleaning environments
• Plungers: Solid ceramic — exceptional wear resistance, heat resistance, and dimensional stability
• Seals and Valves: High-quality — selected for long service intervals and minimal maintenance
• Serviceability: Front-access piston packings and valve assemblies; oil sight glass and vented dipstick
• Lubrication: Oil-lubricated crankcase with factory pre-filled break-in oil
• 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 downstream chemical injector — rated to 4,000 PSI and 5 GPM; 500 PSI operating headroom; factory-matched and factory-installed
• Chemical Injector: Included — downstream venturi injector factory-integrated into Gymatic VR35 assembly
• Warranty: 5-year limited warranty — US-based coverage through AR North America

What’s Included in the Box

A Complete, Factory-Configured RKV35G35DF24C1I Assembly Ready for Installation

• Factory-matched Gymatic VR35 C1I unloader with active chemical injector (AR22287) — installed and calibrated for the 3.5 GPM / 3,500 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
• Oil sight glass and vented dipstick — at-a-glance oil level monitoring and simplified oil changes
• Mounting bolts and hardware — sized for F24 SAE J609A direct-drive flange installation on compatible 11–15 HP engines
• Operator’s manual — complete installation, startup, operating, and maintenance procedures including oil change intervals, chemical injector care, and winterization protocol
• Parts schematic — exploded-view diagram with AR part numbers for every serviceable component

Gymatic VR35 C1I — 500 PSI Headroom. Two-Mode Platform at 3,500 PSI.

Maximum Stability. Integrated Chemical Feed. The Preferred Specification at This Pressure Point.

• 500 PSI headroom — most favorable margin in the RKV35G35D family — the VR35 at 3,500 PSI operates well below its 4,000 PSI ceiling on the RKV35G35DF24C1I, producing stable, confident bypass regulation throughout continuous production wash cycles. Smooth transitions protect hoses, guns, and accessories at every trigger release.
• Extended unloader service intervals — VR35 bypass components operating with 500 PSI of headroom experience substantially less cumulative stress than tighter pairings, extending rebuild intervals in high-cycle commercial environments
• Integrated downstream injection — the factory-integrated injector draws detergent or pre-soak solution when the operator switches to low-pressure application mode. No separate injector hardware or additional plumbing required.
• Two-mode workflow — chemical pre-soak breaks down grease, road film, and contamination; full 3,500 PSI / 3.5 GPM rinse removes loosened material at 12,250 cleaning units. Switch between modes without changing tools.
• Simple field adjustment — operators can quickly set operating pressure for different tools, surfaces, and tasks using a wide range of spray tips and accessories
• Injector maintenance — flush the injector circuit with clean water after every detergent session to preserve long-term venturi function

Typical Applications

Where the RKV35G35DF24C1I Delivers Best Results

• Commercial pressure washing — building exteriors, concrete surfaces, and vehicle washing where the RKV35G35DF24C1I’s two-mode capability and VR35 stable pressure regulation deliver consistent professional results
• Fleet and transportation vehicle cleaning — trucks, trailers, and service vehicles where integrated chemical application and 3,500 PSI cleaning force handle road film and grease without separate injector hardware
• Agricultural equipment washdown — tractors, implements, and farm facilities where on-demand detergent capability and 3,500 PSI impact handle varied agricultural contamination on 11–15 HP engine-powered rigs
• Construction and heavy equipment cleaning — excavators, loaders, and jobsite tools where chemical pre-treatment through the factory-integrated system and 3,500 PSI rinsing handle maximum contamination
• Industrial facility maintenance — production equipment, plant floors, and maintenance areas where the RKV35G35DF24C1I’s two-mode output supports both chemical degreasing and high-pressure rinsing from a single assembly
• Skid-mounted and trailer-mounted rigs — compact F24 direct-drive footprint and factory-matched C1I assembly support efficient integration into professional and OEM pressure washer builds

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

RK Series Performance Backed by Domestic Support

The RKV35G35DF24C1I 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 — solid ceramic plungers, brass manifold seals and o-rings, high-quality 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 RKV35G35DF24C1I 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.

12,250 Cleaning Units. 3,500 PSI. 3.5 GPM. VR35 — 500 PSI Headroom. Factory-Matched C1I.

Italian Engineering. Maximum Unloader Stability. Factory-Approved Two-Mode Assembly. US Warranty Coverage.

For contractors, fleet operators, agricultural teams, industrial maintenance professionals, and OEM builders who need 3.5 GPM at 3,500 PSI in a factory-matched, factory-approved assembly with the Gymatic VR35’s 500 PSI operating headroom for maximum bypass stability and longest unloader service intervals in the RKV35G35D family, factory-integrated chemical injection for two-mode wash capability, and compatibility with 11–15 HP engine platforms, the RKV35G35DF24C1I delivers a properly engineered, completely rebuildable solution from one of the global pressure pump industry’s most trusted manufacturers. Five years of US warranty. A decade of service life.

Volume buyers can reach the WSHPWR wholesale team directly at wholesale@wshpwr.com to discuss pricing for quantity purchases across the complete Annovi Reverberi lineup.