RKA4G30NL-C2 Triplex Pump | 4.0 GPM 3000 PSI

RKA4G30NL-C2 by Annovi Reverberi — Industrial Triplex Plunger Pump with Gymatic C2 Unloader | 4.0 GPM | 3,000 PSI | Bronze Connecting Rods | Brass Manifold | 45mm Extended Solid Shaft | 1,450 RPM Belt-Drive Platform | No Chemical Injector

The RKA4G30NL-C2 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-matched Gymatic C2 bypass pressure regulation and straight high-pressure water delivery. Rated at 4.0 GPM and 3,000 PSI at 1,450 RPM, the RKA4G30NL-C2 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 contractor cleaning rigs — through bronze connecting rods, solid ceramic plungers, brass manifold, and a 45mm extended solid shaft purpose-built for v-belt pulley, poly-drive belt, and flexible coupling installations.

At 1,450 RPM, the RKA4G30NL-C2 operates at the lowest speed in the RKA NL belt-drive family — delivering maximum thermal efficiency, minimum internal component stress, and the longest plunger, seal, and bearing service intervals available in this product line. Straight 3,000 PSI water output for operators managing chemical delivery through an external downstream system. 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 RKA4G30NL-C2 is a long-term industrial investment capable of a decade of productive service life.

Factory-Matched and Approved — The RKA4G30NL-C2 Complete Assembly Advantage

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

Every RKA4G30NL-C2 ships as a factory-matched, factory-approved, and factory-installed complete pump and unloader assembly:

• Factory-matched C2 for 3,000 PSI — the Gymatic C2 adjustable unloader is factory-calibrated for this pump’s 4.0 GPM / 3,000 PSI operating point, ensuring predictable pressure behavior and stable bypass response across continuous industrial belt-drive duty cycles.
• 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-C2 exits the manufacturing facility with the C2 unloader mounted, calibrated, and tested for flow, pressure, and leak-free operation before shipment.
• Eliminates mismatch returns — incorrect unloader specification is the most common source of industrial pump system returns. The factory-matched assembly eliminates this before the pump leaves the box.
• Installation-ready — connect to the power source via belt coupling, connect system hoses using the supplied banjo bolts and O-rings, and start. The RKA4G30NL-C2 arrives engineered, assembled, and ready.

Decoding the RKA4G30NL-C2 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 the standard solid shaft length
• C2 — Unloader code: Gymatic — adjustable bypass unloader; factory-matched and factory-installed as Annovi Reverberi’s approved specification for this model
• No trailing I suffix — confirms straight 3,000 PSI water output without a factory-installed downstream chemical injector

Key Specifications

RKA4G30NL-C2 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: 1,450 RPM — lowest-speed model in the RKA NL belt-drive family; maximum thermal efficiency and extended component 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: Brass — corrosion-resistant construction for sustained 3,000 PSI cycle integrity
• Plungers: Solid ceramic — precision-ground for 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 C2 with internal bypass — adjustable pressure regulation; factory-matched and factory-installed
• Connections: Banjo bolts and sealing O-rings — standard C2 family hardware supplied for secure, leak-resistant installation
• Chemical Injector: Not included — straight 3,000 PSI water output; chemical delivery managed externally
• Warranty: 5-year limited warranty — US-based coverage through Annovi Reverberi North America

What’s Included in the Box

A Complete, Factory-Configured RKA4G30NL-C2 Assembly Ready for Installation

• Factory-matched Gymatic C2 adjustable unloader with internal bypass — installed and calibrated for the 4.0 GPM / 3,000 PSI operating point; no downstream injector port on this variant
• 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 bolts — for installation on compatible belt-drive systems
• Operator’s manual — complete installation, startup, operating, and maintenance procedures including oil change intervals and winterization protocol
• Parts schematic — exploded-view diagram with Annovi Reverberi part numbers for every serviceable component

1,450 RPM — The Lowest-Speed Model in the RKA NL Family

Maximum Thermal Efficiency. Minimum Wear. Longest Service Intervals.

• 1,450 RPM — the lowest operating speed in this product line — the RKA4G30NL-C2 runs slower than any other model in the RKA NL belt-drive family, producing the least internal heat, friction, and reciprocating stress across continuous industrial cleaning cycles. For operators prioritizing maximum component longevity and minimum maintenance cost per operating hour, this is the specification.
• Extended plunger, seal, and bearing life — lower reciprocating speed on the RKA4G30NL-C2 reduces cumulative wear on ceramic plungers and piston packings more aggressively than higher-RPM alternatives, extending rebuild intervals across high-cycle industrial environments
• Reduced vibration transmission — 1,450 RPM operation minimizes vibration transmitted to the frame, hoses, fittings, and downstream accessories connected to the RKA4G30NL-C2, improving system longevity and operator comfort during extended cleaning sessions
• Bronze connecting rods for belt-drive load cycles — the RKA4G30NL-C2’s bronze connecting rods provide the fatigue resistance and load-bearing strength required for continuous industrial operation, supporting smooth power transfer from belt-drive input across extended duty cycles

Gymatic C2 Unloader — Adjustable Bypass at 3,000 PSI

Factory-Approved. Adjustable. System Protection. Clean Water Output.

• Adjustable pressure regulation — the C2 unloader on the RKA4G30NL-C2 allows operators to set and maintain precise operating pressure for different nozzle sizes, surface types, and cleaning tasks throughout industrial wash programs
• Internal bypass for system protection — smooth bypass cycling at trigger release protects the RKA4G30NL-C2 and downstream accessories from pressure spikes, reducing shock loads and extending component life across continuous operation
• No factory-installed injector — straight 3,000 PSI water output. Chemical delivery managed externally through a dedicated downstream injector or soft wash system when soap application is required.
• Compact factory-integrated assembly — pre-installed C2 unloader with supplied banjo bolts reduces setup time and ensures correct pressure regulation from first startup on the RKA4G30NL-C2

Typical Applications

Where the RKA4G30NL-C2 Delivers Best Results

• Industrial wash bays — stationary and semi-portable belt-drive installations where the RKA4G30NL-C2’s 1,450 RPM operation and continuous-duty construction support extended multi-shift production washdown programs
• Fleet cleaning operations — belt-drive contractor and facility systems where 3,000 PSI / 4.0 GPM output handles fleet vehicle contamination with chemical applied through an external system
• Agricultural equipment and facility cleanup — tractors, implements, and farm facilities where the RKA4G30NL-C2’s low-speed reliability and 4.0 GPM output handle large-area agricultural cleaning on belt-drive-powered rigs
• Heavy equipment service centers — construction and mining equipment where the RKA4G30NL-C2’s 12,000 cleaning units and 1,450 RPM construction handle maximum contamination loads with maximum component longevity
• Contractor and mobile pressure washing rigs — belt-drive systems where the RKA4G30NL-C2’s 45mm extended solid shaft, factory-matched C2 assembly, and lowest-in-class RPM deliver reliable, low-maintenance performance across varied commercial accounts

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

Industrial RKA Series Performance Backed by Domestic Support

The RKA4G30NL-C2 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 C2 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-C2 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. 1,450 RPM. 45mm Extended Shaft. Factory-Matched C2. No Injector.

Italian Engineering. Lowest-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 at the lowest operating speed in the RKA NL belt-drive family — 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 C2 adjustable bypass unloader, and straight water output for external chemical management — the RKA4G30NL-C2 delivers the maximum-longevity specification in this pressure class 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.