RKA4G30N-C2I Triplex Pump | 4.0 GPM 3000 PSI

RKA4G30N-C2I by Annovi Reverberi — Industrial Triplex Plunger Pump with Gymatic C2I Unloader and Chemical Injector | 4.0 GPM | 3,000 PSI | Forged Brass Manifold | 24mm Solid Shaft | 1,750 RPM Electric Motor Platform

The RKA4G30N-C2I by Annovi Reverberi is a professional-grade RKA Series industrial triplex ceramic plunger pump engineered for electric motor-driven pressure washing systems requiring 4.0 GPM at 3,000 PSI with factory-integrated downstream chemical injection capability. Rated at 4.0 GPM and 3,000 PSI at 1,750 RPM, the RKA4G30N-C2I delivers 12,000 cleaning units — combining 4.0 GPM high-volume output with 3,000 PSI cleaning force for storefronts, service bays, industrial equipment, fleet vehicles, agricultural machinery, and stationary wash systems — through a forged brass manifold, solid ceramic plungers, stainless steel valves, and a 24mm natural solid shaft for direct coupling to compatible electric motor platforms.

The RKA4G30N-C2I carries the factory-installed bolt-on Gymatic C2I adjustable unloader with integrated downstream soap injection — delivering the complete two-mode wash platform from a single factory-configured, factory-approved assembly with an adjustment range from 200 PSI up to full operating pressure. Operating at 1,750 RPM on an electric motor platform, the RKA4G30N-C2I runs cooler and quieter than high-speed alternatives, extending seal, plunger, and bearing service intervals in stationary continuous-duty wash environments. Built by Annovi Reverberi in Modena, Italy — with US-based operations, a domestic parts distribution network, and dedicated technical support — this pump arrives pre-filled with factory break-in oil, factory-tested, and ready for installation. Protected by a 5-year US limited warranty and built to be fully rebuilt rather than replaced, the RKA4G30N-C2I is a long-term industrial investment capable of a decade of productive service life.

Factory-Matched and Approved — The RKA4G30N-C2I Complete Assembly Advantage

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

Every RKA4G30N-C2I ships as a factory-matched, factory-approved, and factory-installed complete pump and unloader assembly:

• Factory-matched C2I for 3,000 PSI — the bolt-on Gymatic C2I unloader and integrated injector are factory-calibrated for this pump’s 4.0 GPM / 3,000 PSI duty point. Pressure regulation, bypass response, and chemical draw characteristics are factory-set as a complete system.
• Factory-approved configuration — the complete assembly is Annovi Reverberi’s validated specification for this model. Operating with the factory-installed components maintains full 5-year warranty coverage.
• Factory-installed and tested — every RKA4G30N-C2I exits the manufacturing facility with the C2I 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 industrial pump system returns — before the pump leaves the box.
• Installation-ready — confirm motor compatibility with the 24mm natural solid shaft, mount, connect system hoses, connect the detergent supply line to the injector port, and start. The RKA4G30N-C2I arrives engineered, assembled, and ready.

Decoding the RKA4G30N-C2I Model Number

What Every Segment of This Annovi Reverberi Pump Designation Tells You

• RKA — Pump series: RKA Series industrial triplex plunger pump — Annovi Reverberi’s commercial and industrial electric motor platform
• 4G — Flow rate: 4.0 GPM
• 30 — Maximum pressure: 3,000 PSI — 4.0 × 3,000 = 12,000 cleaning units
• N — Shaft type: Natural solid shaft — 24mm — standard solid shaft configuration per Annovi Reverberi model designation convention; distinct from the NL (45mm extended solid shaft) variant
• C2I — Unloader and injector: Gymatic C2 bolt-on adjustable unloader with integrated downstream chemical injector — adjustable 200 PSI to maximum; factory-matched and factory-installed as Annovi Reverberi’s approved specification for this model

Key Specifications

RKA4G30N-C2I Technical Details at a Glance

• Flow Rate: 4.0 GPM (gallons per minute)
• Maximum Pressure: 3,000 PSI
• Cleaning Units: 12,000 (GPM × PSI)
• Operating Speed: 1,750 RPM — low-speed electric motor platform for reduced heat, vibration, and component wear
• Pump Type: RKA Series industrial triplex ceramic plunger pump
• Shaft: Natural solid shaft, 24mm — direct coupling to compatible electric motor platforms
• Manifold Material: Forged brass — durability and corrosion resistance in continuous wet-service cleaning environments
• Plungers: Solid ceramic — wear resistance and stable long-term sealing performance
• Valves: Stainless steel — corrosion resistance and consistent seating under continuous load
• Serviceability: Oil sight glass and vented dipstick for simplified routine maintenance
• Lubrication: Oil-bath crankcase with factory pre-filled break-in oil
• Unloader System: Gymatic C2I bolt-on adjustable unloader with integrated downstream chemical injector — adjustable 200 PSI to maximum operating pressure; factory-matched and factory-installed
• Connections: Banjo bolts and sealing O-rings — standard C2 family hardware supplied for secure, leak-resistant installation
• Chemical Injector: Included — downstream venturi injector factory-integrated into C2I bolt-on assembly
• Warranty: 5-year limited warranty — US-based coverage through Annovi Reverberi North America

What’s Included in the Box

A Complete, Factory-Configured RKA4G30N-C2I Assembly Ready for Installation

• Factory-matched Gymatic C2I bolt-on unloader with active chemical injector — installed and calibrated for the 4.0 GPM / 3,000 PSI operating point; adjustable from 200 PSI to maximum; injector port ready for detergent supply line connection
• Banjo bolts and sealing O-rings — standard C2 family hardware for secure, leak-resistant unloader connections
• 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 hardware and bolts — for installation on compatible electric motor platforms
• 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 Annovi Reverberi part numbers for every serviceable component

24mm Natural Solid Shaft — 1,750 RPM Electric Motor Platform Industrial Continuous Duty

Natural Solid Shaft. Low-Speed Operation. Stationary and Facility System Ready.

• Natural solid 24mm shaft — the RKA4G30N-C2I connects to compatible electric motor platforms via its 24mm natural solid shaft, providing direct, precise power transfer. Confirm motor compatibility before installation.
• 1,750 RPM low-speed electric operation — the RKA4G30N-C2I runs at significantly lower speed than high-RPM alternatives, reducing internal friction, heat generation, and stress on ceramic plungers, seals, and bearings across continuous industrial duty cycles
• Consistent voltage-regulated output — electric motor power delivers stable, consistent operating speed unaffected by fuel quality, ambient temperature, or altitude, ensuring predictable 4.0 GPM flow and stable 3,000 PSI performance on the RKA4G30N-C2I across all facility operating conditions
• Reduced facility noise levels — 1,750 RPM electric operation produces substantially lower acoustic output than high-speed engine alternatives — relevant for indoor wash bays, service facilities, and enclosed industrial environments where operator comfort and noise compliance matter
• Configured for stationary and repeatable wash programs — the RKA4G30N-C2I’s electric motor interface and factory-matched unloader assembly support consistent, repeatable performance in scheduled commercial and industrial wash programs

C2I Bolt-On Unloader — Two-Mode Platform at 3,000 PSI

200 PSI to Maximum. Integrated Chemical Feed. Factory-Approved. Set It and Run.

• 200 PSI to maximum pressure adjustment range — the C2I bolt-on assembly on the RKA4G30N-C2I provides wide adjustable range from low-pressure detergent application mode to full 3,000 PSI rinsing output, giving facility operators precise control for different cleaning tasks and surface types
• Integrated downstream injection — draws detergent or cleaning solution from a supply container when the operator switches to low-pressure application mode. No separate injector hardware or additional plumbing required on the RKA4G30N-C2I.
• Two-mode workflow at 4.0 GPM / 3,000 PSI — chemical pre-soak breaks down grease, road film, and facility contamination; full 3,000 PSI / 4.0 GPM rinse removes loosened material at 12,000 cleaning units. Switch between modes without changing tools.
• Smooth bypass cycling — bolt-on unloader with internal bypass supports controlled trigger cycling and set-pressure stability, protecting the RKA4G30N-C2I and downstream accessories throughout continuous facility wash operations
• Simplified system layout — all-in-one bolt-on C2I assembly reduces plumbing complexity and shortens setup time on the RKA4G30N-C2I, supporting faster commissioning of stationary wash bay installations
• Injector maintenance — flush the injector circuit with clean water after every detergent session and keep inlet strainers clean to protect valves and packings

Typical Applications

Where the RKA4G30N-C2I Delivers Best Results

• Commercial cleaning of storefronts, sidewalks, service bays, and facility entrances — the RKA4G30N-C2I’s two-mode capability and 1,750 RPM electric operation deliver consistent results in scheduled commercial property cleaning programs
• Industrial equipment washdown and plant maintenance — stationary electric motor-driven wash systems where the RKA4G30N-C2I’s continuous-duty construction, integrated injection, and 1,750 RPM electric operation support multi-shift production cleaning operations
• Fleet washing for trucks, buses, trailers, and work vehicles — integrated chemical injection and 3,000 PSI / 4.0 GPM output handle fleet vehicle contamination efficiently in production wash bay environments
• Agricultural machinery washdown and barn sanitation — on-demand detergent capability and 4.0 GPM output handle agricultural contamination in electric-powered stationary wash installations
• Stationary wash systems requiring an integrated pump, unloader, and injector — the RKA4G30N-C2I’s 24mm natural solid shaft, factory-matched C2I assembly, and all-in-one configuration make it the correct specification for fixed facility wash systems needing a complete, pre-configured pump package

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

Industrial RKA Series Performance Backed by Domestic Support

The RKA4G30N-C2I is protected by Annovi Reverberi’s 5-year limited warranty through the US-based warranty and service network. Every internal wear component — solid ceramic plungers, forged brass manifold seals and o-rings, stainless valve seats and springs, Gymatic C2I bolt-on unloader service parts, piston packing kits, and crankcase bearings — is stocked domestically through authorized distribution channels. Contractors, industrial facility managers, fleet operators, municipal purchasing departments, resellers, and volume buyers are invited to contact the WSHPWR wholesale team for pricing on the RKA4G30N-C2I and the complete Annovi Reverberi pump and unloader assembly line. WSHPWR maintains one of the most complete Annovi Reverberi inventories available through any US web store — with thousands of products in stock and a continually expanding catalog.

12,000 Cleaning Units. 3,000 PSI. 4.0 GPM. 24mm Solid Shaft. 1,750 RPM. Factory-Matched C2I.

Italian Engineering. 1,750 RPM Electric Motor Platform. Factory-Approved Two-Mode Assembly. US Warranty Coverage.

For facility managers, industrial maintenance teams, fleet operators, agricultural operations, and commercial contractors who need 4.0 GPM at 3,000 PSI on a 24mm natural solid shaft electric motor platform — with 1,750 RPM low-speed operation for extended component life, factory-matched Gymatic C2I bolt-on unloader with integrated chemical injection and a 200 PSI to maximum adjustment range, forged brass manifold and stainless valve construction for continuous wet-service environments, and a completely rebuildable platform backed by a 5-year US warranty — the RKA4G30N-C2I delivers a purpose-engineered industrial solution from one of the global pressure pump industry’s most trusted manufacturers. Twelve thousand cleaning units. 24mm solid shaft. Two-mode chemical capability. 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.