RRA4G30N-VRT-PKG | 4.0 GPM 3000 PSI Triplex Pump, 24mm Shaft

RRA4G30N-VRT-PKG by Annovi Reverberi — Complete VRT Plumbed RRA Series Belt Drive Triplex Pump Package | 4.0 GPM | 3,000 PSI | Forged Brass Manifold | 24mm Solid Keyed Shaft | VRT Unloader with Easy Start | Auto-Reset Thermal Relief | 12,000 Cleaning Units

The RRA4G30N-VRT-PKG by Annovi Reverberi is a complete, factory-assembled VRT plumbed RRA Series triplex ceramic plunger pump package engineered for belt and pulley-driven pressure washing systems requiring 4.0 GPM at 3,000 PSI with fully integrated pressure regulation, Easy Start, automatic thermal protection, and the operating speed flexibility that only a belt drive configuration delivers. Rated at 4.0 GPM and 3,000 PSI, the RRA4G30N-VRT-PKG delivers 12,000 cleaning units — through solid ceramic plungers, a forged brass manifold, stainless steel valves, dual redundant packing, oversized crankshaft bearings, and a 24mm solid keyed shaft that accepts belt drive pulleys for tunable operating speed across any engine or motor platform. As part of Annovi Reverberi’s pump and unloader assemblies stocked and supported by WSHPWR, the RRA4G30N-VRT-PKG is the complete belt drive answer for contractors, OEM builders, fleet operators, and industrial facility managers who need 3,000 PSI with the drive geometry, speed control, and thermal protection that direct-drive packages cannot provide.

The RRA4G30N-VRT-PKG is a factory-engineered, factory-assembled, factory-tested complete system — designed by Annovi Reverberi in Modena, Italy and distributed across North America by AR North America. The VRT plumbed package format means the unloader is factory-plumbed with the bypass recirculation loop, automatic thermal relief valve, Easy Start bypass circuit, and all hardware connected and verified before shipment. Operating speed is sized by the installer through pulley selection to match any engine or motor platform — everything else is already done. Protected by a 5-year US limited warranty and built to be fully rebuilt rather than replaced, the RRA4G30N-VRT-PKG is a decade-of-service investment in a complete belt drive package.

Everything in One Box — The RRA4G30N-VRT-PKG Complete VRT Plumbed Package

Factory-Plumbed. Factory-Tested. Belt Drive Ready. Nothing Left to Source.

Open the RRA4G30N-VRT-PKG box and find a complete, factory-plumbed, belt drive-ready installation:

• RRA4G30N triplex ceramic plunger pump with 24mm solid keyed shaft — factory-tested and pre-lubricated with break-in oil. Forged brass manifold, solid ceramic plungers, stainless steel valves, dual redundant packing, oversized crankshaft bearings — factory-installed and factory-verified. 24mm solid crankshaft accepts belt drive pulleys for operating speed tuned to any engine or motor platform.
• VRT external bypass unloader — factory-plumbed and pressure-set — the VRT unloader is factory-calibrated for the 4.0 GPM / 3,000 PSI duty point and plumbed into the complete bypass circuit before shipment. Smooth pressure regulation, stable bypass behavior, and controlled output from the first startup.
• Easy Start feature — at startup, the VRT bypass circuit opens and the pump starts against zero back pressure. The engine or motor engages freely through belt and pulley without hydraulic resistance. Belt tension, pulley loading, and startup torque are at their lowest stress point every time the drive starts. Once operating speed is reached, the bypass closes and the system builds to 3,000 PSI. Easier starts. Reduced belt wear. Longer drive component life.
• Exterior bypass recirculation loop — factory-plumbed — the bypass recirculation circuit is factory-assembled and connected, providing controlled water flow during trigger-off intervals and protecting the pump from pressure spikes throughout the cleaning cycle.
• Automatic Thermal Relief Valve (TRV) — factory-installed in bypass circuit — the thermal sensing pill monitors bypass water temperature continuously. When bypass water reaches 124–145°F, the TRV opens automatically — hot water exits through the relief port, and ambient-temperature supply water flows in to replace it. When temperature returns to the safe operating range, the TRV closes automatically. No manual reset. No intervention. Full thermal protection at all times — including during extended idle intervals in stationary installations where the engine or motor continues running between cleaning cycles.
• Mounting bolts and fittings for belt drive frame integration — every fitting and fastener required for installation onto contractor skids, stationary frames, OEM belt drive installations, and wash bay systems. Organized in the box.
• Chemical injector and suction hose — not included — the RRA4G30N-VRT-PKG delivers straight 3,000 PSI high-pressure water output. When detergent capability is required, a downstream chemical injector and suction assembly are sourced separately.
• Factory break-in oil — crankcase pre-filled. Oil sight glass and vented dipstick for ongoing monitoring.
• Operator’s manual and exploded parts schematic — complete installation, startup, operating, and maintenance procedures with Annovi Reverberi part numbers for every serviceable component.

Decoding the RRA4G30N-VRT-PKG

What Every Segment of This Annovi Reverberi Package Designation Tells You

• RRA — Pump series: RRA Series triplex plunger pump — Annovi Reverberi’s commercial belt drive and pulley drive platform
• 4G — Pump series identifier for this RRA configuration
• 30 — Maximum pressure: 3,000 PSI — 4.0 × 3,000 = 12,000 cleaning units
• N — Shaft type: Natural solid shaft — 24mm solid keyed crankshaft optimized for belt and pulley drive systems; operating speed set by pulley ratio selection
• VRT — Unloader family: VRT Series external bypass unloader — factory-plumbed with Easy Start, bypass recirculation loop, and auto-reset TRV thermal protection
• PKG — Complete VRT plumbed package: pump plus fully integrated VRT plumbing assembly — everything in one factory-assembled, factory-tested box

24mm Solid Shaft Belt Drive — Speed by Pulley. Performance by Design.

Pulley Ratio Sets Operating Speed. Run Cooler. Run Longer. No Fixed RPM Constraint.

The RRA4G30N-VRT-PKG‘s 24mm solid keyed shaft and belt drive configuration eliminate the fixed-RPM constraint of direct-drive packages — and for OEM builders, stationary installation designers, and contractors building custom systems, that flexibility is the specification that makes this package the correct choice:

• Operating speed set entirely by pulley ratio — there is no fixed RPM connection between the engine or motor and the RRA4G30N-VRT-PKG. Select the drive pulley and pump pulley diameters to achieve the target pump speed for any engine or motor platform. Run the pump slower for extended seal life. Run the engine at its most efficient RPM band while the pump runs at its optimal duty point. The RRA4G30N-VRT-PKG adapts to the system design — not the other way around.
• Cooler operation through speed reduction — the most common way to extend ceramic plunger and dual redundant packing service life in a belt drive installation is to run the pump below engine speed via pulley ratio. Lower pump RPM at 3,000 PSI reduces heat generation at the plunger-seal interface, extends service intervals, and reduces operating costs across the system’s working life.
• Compatible with any engine or motor platform — gas engine, electric motor, diesel, PTO — any drive source with a shaft and pulley accepts the RRA4G30N-VRT-PKG’s 24mm belt drive interface. The VRT plumbed package’s factory-calibrated 3,000 PSI pressure setting remains correct regardless of the drive platform — just match the pulley ratio to achieve the correct pump operating speed.
• Ideal for stationary frames and custom OEM designs — stationary installations, skid units, and custom OEM pressure washer designs that require precise speed synchronization between engine and pump are exactly what the RRA4G30N-VRT-PKG’s belt drive platform is built for. Fixed frames with engineered belt paths benefit from the repeatable mounting geometry and standardized 24mm shaft interface.

Key Specifications

RRA4G30N-VRT-PKG Technical Details at a Glance

• Flow Rate: 4.0 GPM (gallons per minute)
• Maximum Pressure: 3,000 PSI
• Cleaning Units: 12,000 (GPM × PSI)
• Drive Type: Belt and pulley — operating speed set by pulley ratio selection
• Pump Type: RRA Series triplex ceramic plunger pump — smooth, low-pulsation output; approximately 93% volumetric efficiency
• Shaft: 24mm solid keyed crankshaft (N designation) — belt drive pulley compatible
• Manifold: Forged brass — strength and corrosion resistance in industrial environments
• Plungers: Solid ceramic — long seal life and cool running
• Valves: Stainless steel — consistent seating and high-pressure reliability
• Packing: Dual redundant — doubles seal life and reduces downtime
• Bearings: Oversized crankshaft — stability under continuous-duty loads
• Volumetric Efficiency: Approximately 93%
• Lubrication: Oil-bath crankcase with vented design — thermal management and long service intervals
• Unloader System: VRT external bypass — factory-plumbed, pressure-set, and verified
• Easy Start: Bypass-circuit zero-back-pressure startup — drive engages freely through belt and pulley; system builds to pressure at operating speed
• Thermal Relief Valve: Auto-open/auto-reset at 124–145°F — thermal sensing pill; hot water exits, ambient supply water replaces; no manual reset
• Serviceability: Oil sight glass and vented dipstick; accessible valves, plungers, and packing assemblies
• Chemical Injector: Not included — straight 3,000 PSI water output
• Warranty: 5-year limited warranty — US-based coverage through Annovi Reverberi North America

The VRT Plumbed Package at 3,000 PSI Belt Drive

Easy Start. Auto-Reset TRV. Factory-Plumbed Bypass. Engineered for Stationary and Custom Belt Drive Systems.

• Easy Start reduces belt drive startup stress at every cycle — belt systems load the drive belt, pulleys, and bearings at the moment of startup. The RRA4G30N-VRT-PKG’s Easy Start feature opens the bypass circuit so the drive starts against zero hydraulic resistance — reducing startup belt tension, pulley load, and shaft stress on every start cycle. In high-cycle stationary installations running multiple starts per shift, Easy Start delivers measurable belt and drive component longevity over the system’s working life.
• Auto-reset TRV is critical in stationary belt drive applications — stationary installations frequently run with the engine or motor idling during operator breaks, material handling, or positioning intervals. During these idle periods, bypass water temperature rises without any audible warning. The RRA4G30N-VRT-PKG’s automatic TRV monitors temperature continuously, vents heat as it builds, and draws ambient supply water to restore safe operating temperature — automatically, without stopping the drive or interrupting operations.
• Factory-plumbed bypass loop standardizes OEM builds — the bypass recirculation circuit on the RRA4G30N-VRT-PKG is factory-assembled and verified. OEM builders and contractors integrating multiple units gain identical bypass circuit behavior across every installation — consistent performance, consistent service, consistent results across the entire fleet or production run.

Typical Applications

Where the RRA4G30N-VRT-PKG Delivers Best Results

• Stationary frames, skid units, and custom OEM belt drive pressure washer designs — the RRA4G30N-VRT-PKG’s 24mm solid shaft, VRT plumbed package, and pulley-ratio speed control make it the correct specification for engineered belt drive installations requiring precise pump-to-engine speed synchronization and standardized component pairing
• Fleet maintenance — large vehicle and trailer wash systems — continuous-duty belt drive wash systems for trucks, buses, and municipal fleets where Easy Start, auto-reset TRV, and 12,000 cleaning unit output support high-cycle daily operations with minimal operator intervention
• Contractor skid and trailer pressure washer rigs — belt drive contractor builds where the VRT plumbed package format eliminates bypass circuit sourcing and provides factory-calibrated pressure management from first startup
• Agricultural barn washdown and farm equipment cleaning — belt drive agricultural systems where pump speed can be tuned through pulley ratio for cooler operation across extended seasonal programs
• Industrial plants — conveyor cleaning, machinery degreasing, and process washdown — stationary belt drive industrial installations where the RRA4G30N-VRT-PKG’s factory-plumbed thermal protection and standardized 3,000 PSI output support continuous industrial cleaning programs
• Food and beverage facilities and municipal public works — floor sanitation, conveyor cleaning, and public works wash bays where standardized, rebuildable belt drive packages with national parts availability support scheduled cleaning programs

5-Year US Warranty, National Parts Availability, and Wholesale Pricing

Built in Italy. Belt Drive Ready. Backed for Five Years.

The RRA4G30N-VRT-PKG is protected by Annovi Reverberi’s 5-year limited warranty through the US-based warranty and service network administered by AR North America. Every internal wear component — solid ceramic plungers, forged brass manifold seals and o-rings, stainless valve seats, VRT unloader service parts, dual redundant packing kits, and oversized crankcase bearings — is stocked nationally through authorized AR North America distribution channels. Contractors, fleet operators, agricultural operations, industrial facility managers, OEM equipment builders, resellers, and volume buyers are invited to contact the WSHPWR wholesale team for pricing on the RRA4G30N-VRT-PKG and the complete WSHPWR pump package lineup. 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. Belt Drive. VRT Plumbed. Easy Start. Auto-Reset TRV. Speed by Pulley. Everything in One Box.

Italian Engineering. RRA Series Belt Drive Platform. Complete VRT Plumbed Package. 5-Year US Warranty.

Stop sourcing VRT plumbing components separately. Stop assembling bypass loops on the bench. The RRA4G30N-VRT-PKG is the complete Annovi Reverberi RRA Series belt drive VRT plumbed package for contractors, OEM builders, fleet operators, agricultural teams, and stationary industrial system designers who need 4.0 GPM at 3,000 PSI with pulley-ratio speed control and zero installation surprises. Forged brass manifold. Dual redundant packing. Oversized crankshaft bearings. 93% volumetric efficiency. VRT unloader factory-plumbed. Easy Start zero-back-pressure startup. Automatic thermal relief at 124–145°F. Every fitting and every bolt. Factory-tested. Pre-lubricated. Five-year US warranty. One box. Same-day install.

Volume buyers and OEM builders standardizing on the RRA4G30N-VRT-PKG across production runs can reach the WSHPWR wholesale team directly at wholesale@wshpwr.com to discuss pricing across the complete Annovi Reverberi pump package lineup.