RKA4G30NL-C2I Triplex Pump | 4.0 GPM 3000 PSI

RKA4G30NL-C2I by Annovi Reverberi — Industrial Triplex Plunger Pump with Gymatic C2I Unloader and Chemical Injector | 4.0 GPM | 3,000 PSI | Bronze Connecting Rods | Brass Manifold | 45mm Extended Solid Shaft | Belt-Drive Compatible

The RKA4G30NL-C2I by Annovi Reverberi is a professional-grade RKA Series industrial triplex ceramic plunger pump engineered for belt-drive and 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, the RKA4G30NL-C2I delivers 12,000 cleaning units — combining 4.0 GPM high-volume output with 3,000 PSI cleaning force for industrial wash bays, fleet vehicles, agricultural equipment, heavy equipment service centers, and commercial pressure washing — through bronze connecting rods, solid ceramic plungers, precision-machined brass manifold, and a 45mm extended solid shaft purpose-built for v-belt pulley, poly-drive belt, and flexible coupling installations.

The RKA4G30NL-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. Operating at low RPM on a belt-drive platform, this pump runs cooler and with reduced internal wear compared to high-speed alternatives, extending plunger, seal, and bearing service intervals in continuous industrial duty environments. Built by Annovi Reverberi in Modena, Italy — with US-based operations, a domestic parts distribution network, and dedicated technical support — the RKA4G30NL-C2I 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, this pump is a long-term industrial investment capable of a decade of productive service life.

Factory-Matched and Approved — The RKA4G30NL-C2I Complete Assembly Advantage

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

Every RKA4G30NL-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 RKA4G30NL-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 — connect to the power source via belt coupling, connect system hoses, connect the detergent supply line to the injector port, and start. The RKA4G30NL-C2I arrives engineered, assembled, and ready.

Decoding the RKA4G30NL-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 belt-drive and electric motor platform
• 4G — Flow rate: 4.0 GPM
• 30 — Maximum pressure: 3,000 PSI — 4.0 × 3,000 = 12,000 cleaning units
• L — Shaft length: 45mm extended solid shaft — purpose-built for v-belt pulley, poly-drive belt, and flexible coupling installations requiring additional engagement depth beyond standard shaft length
• C2I — Unloader and injector: Gymatic C2 bolt-on adjustable unloader with integrated downstream chemical injector — factory-matched and factory-installed as Annovi Reverberi’s approved specification for this model

Key Specifications

RKA4G30NL-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: Low-RPM belt-drive platform — reduced heat and internal wear for extended service intervals
• Pump Type: RKA Series industrial triplex ceramic plunger pump
• Shaft Length: 45mm extended solid shaft (L designation) — v-belt, poly-drive belt, and flexible coupling ready
• Manifold Material: Precision-machined brass — corrosion resistance, pressure fatigue resistance, and thermal stability
• Plungers: Solid ceramic — exceptional wear resistance and thermal stability
• Connecting Rods: Bronze — strength and longevity under continuous industrial belt-drive load cycles
• 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 — 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 RKA4G30NL-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; 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 belt-drive systems
• 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

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

Factory-Approved. Adjustable. Integrated Chemical Feed. Belt-Drive Rated.

• Integrated downstream injection — draws detergent, degreaser, or cleaning solution when the operator switches to low-pressure application mode on the RKA4G30NL-C2I. No separate injector hardware or additional plumbing required.
• Two-mode workflow at 4.0 GPM / 3,000 PSI — chemical pre-soak breaks down grease, road film, and industrial contamination; full 3,000 PSI / 4.0 GPM rinse removes loosened material at 12,000 cleaning units. Switch between modes without changing tools.
• Bolt-on adjustable unloader with internal bypass — regulates water pressure precisely and ensures smooth bypass cycling when the spray gun is released, protecting the RKA4G30NL-C2I and downstream accessories from pressure spikes throughout operation
• Simplified plumbing — bolt-on integrated C2I assembly reduces external components, shortens installation time, and improves overall system reliability on the RKA4G30NL-C2I
• Injector maintenance — flush the injector circuit with clean water after every detergent session to preserve long-term venturi function

Low-RPM Belt-Drive Performance — Extended Industrial Service Life

Cooler Operation. Reduced Wear. Bronze Rods. Ceramic Plungers. Built for Continuous Duty.

• Low-RPM belt-drive operation — the RKA4G30NL-C2I runs at reduced speed compared to high-speed direct-drive alternatives, minimizing heat generation, internal friction, and stress on ceramic plungers, seals, and bearings across continuous industrial cleaning cycles
• Bronze connecting rods provide the fatigue resistance and load-bearing strength required for continuous industrial belt-drive duty on the RKA4G30NL-C2I, ensuring smooth power transfer across extended operating hours
• Solid ceramic plungers deliver exceptional wear resistance and thermal stability, reducing seal wear and extending maintenance intervals across continuous belt-drive industrial applications
• Precision-machined brass manifold resists corrosion and pressure fatigue in industrial cleaning environments where detergents, temperature variation, and continuous cycling are standard conditions
• 45mm extended solid shaft for correct pulley engagement — provides the engagement depth required for v-belt pulley seating, poly-drive belt alignment, and secure fastener retention under sustained industrial operating loads on the RKA4G30NL-C2I

Typical Applications

Where the RKA4G30NL-C2I Delivers Best Results

• Industrial wash bays — stationary and semi-portable belt-drive installations where the RKA4G30NL-C2I’s two-mode capability and continuous-duty construction support multi-shift production washdown operations
• Fleet cleaning contractors — belt-drive contractor systems where integrated chemical injection and 3,000 PSI / 4.0 GPM output handle fleet vehicle contamination efficiently without separate injector hardware
• Agricultural equipment and facilities — tractors, harvesters, and farm facilities where on-demand chemical capability and 4.0 GPM output handle varied agricultural contamination on belt-drive-powered rigs
• Heavy equipment service centers — construction and mining equipment where the RKA4G30NL-C2I’s 12,000 cleaning units and two-mode output handle maximum contamination loads in professional service environments
• Commercial pressure washing rigs — belt-drive contractor systems where the RKA4G30NL-C2I’s 45mm extended solid shaft, factory-matched C2I assembly, and low-RPM efficiency support reliable performance across varied commercial accounts

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

Industrial RKA Series Performance Backed by Domestic Support

The RKA4G30NL-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, bronze connecting rods, brass manifold seals and o-rings, 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 RKA4G30NL-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. 45mm Extended Shaft. Factory-Matched C2I. Two-Mode.

Italian Engineering. Low-Speed Industrial Belt-Drive Platform. Factory-Approved Assembly. US Warranty Coverage.

For contractors, fleet operators, industrial maintenance teams, agricultural operations, and facility managers who need 4.0 GPM at 3,000 PSI on a belt-drive platform — with a 45mm extended solid shaft for correct v-belt and poly-drive belt pulley engagement, bronze connecting rods and ceramic plungers for continuous industrial duty, factory-matched Gymatic C2I bolt-on unloader with integrated chemical injection for two-mode wash capability, and a completely rebuildable platform backed by a 5-year US warranty — the RKA4G30NL-C2I delivers a purpose-engineered industrial solution from one of the global pressure pump industry’s most trusted manufacturers. Twelve thousand cleaning units. Extended 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.