RTR-RKA4G35NL | Pump Package RKA4G35NI-C2 Bypass Thermal Kit

RTR-RKA4G35NL by Annovi Reverberi — Ready to Run RKA Series Pump Package | 4.0 GPM | 3,500 PSI | Forged Brass Manifold | 24mm Solid Keyed Shaft | 45mm Extended Length | Gymatic C2 Unloader | Factory Operationally Tested | 1,450 RPM | Critical Application Ready

The RTR-RKA4G35NL by Annovi Reverberi is a factory operationally tested, pressure-set, fully plumbed Ready-to-Run RKA Series triplex ceramic plunger pump package engineered for applications where the pump must work to specification the first time — with no opportunity for field calibration, no access for pressure adjustment after installation, and no margin for startup failure. Rated at 4.0 GPM and 3,500 PSI at 1,450 RPM, the RTR-RKA4G35NL delivers 14,000 cleaning units of high-volume, controlled-pressure cleaning output through a forged brass manifold, solid ceramic plungers, stainless steel valves, and a 24mm solid keyed shaft with 45mm extended length for direct drive or belt drive coupling. Factory-installed inlet and outlet plumbing, integrated bypass system, and thermal protection kit ship fully assembled and operationally verified. As part of Annovi Reverberi’s pump and unloader assemblies stocked and supported by WSHPWR, the RTR-RKA4G35NL is the only correct specification when installation access is limited, reassembly labor is measured in hours, and the system has to run perfectly from the first startup.

The RTR-RKA4G35NL is built on the RKA Series platform with an NL designation confirming the 24mm solid keyed shaft and 45mm extended shaft length — the Gymatic C2 unloader is factory-calibrated, the inlet and outlet plumbing is factory-installed, and every unit ships with a factory performance test report confirming operational verification before the package leaves the facility. Built by Annovi Reverberi in Modena, Italy and backed by a 5-year US limited warranty — when reassembly labor exceeds four hours and the system has to be right the first time, there is only one specification.

Why RTR Is Not Optional on the RTR-RKA4G35NL

Four Hours of Access Labor. One Shot to Get It Right. Zero Tolerance for Startup Calibration.

The RTR designation exists on every Annovi Reverberi Ready-to-Run package in the WSHPWR lineup — but on the RTR-RKA4G35NL, it is not a convenience. It is an installation requirement:

• Vacuum truck hydro-excavation tool box installations — the RTR-RKA4G35NL is the preferred pump package specification for the tool box pressure washer systems on hydro-excavation vacuum trucks. Access to the pump compartment requires partial or complete disassembly of the tool box. On many configurations, reassembly must be fully completed before the system can be tested under pressure. Installation labor routinely exceeds four hours. A pump that requires pressure adjustment, bypass calibration, or any startup fine-tuning after reassembly means four hours of labor plus disassembly again. The RTR-RKA4G35NL ships with pressure set, bypass calibrated, and operational test completed. Reassemble. Start. Confirm flow. Done.
• Work truck compartments and integrated service body installations — service body trucks carrying a pressure washer system inside a compartment, drawer, or enclosed bay face the same constraint. Once the system is installed and the compartment is closed, access for pressure adjustment is limited or impossible without reopening the assembly. The RTR-RKA4G35NL eliminates the risk of discovering a calibration issue after the compartment is sealed.
• Overhead and elevated installations — conveyor system wash heads — pressure washer pumps mounted at the top of conveyor systems, overhead wash stations, and elevated service platforms require lift equipment, scaffolding, or confined space entry for access after installation. Discovering a pressure calibration issue after the pump is in position and the platform is cleared means repeating the full access procedure. The RTR-RKA4G35NL’s factory operational testing eliminates that scenario before the pump ships.
• Any tight-access, hard-to-reach, or re-entry-restricted installation — marine engine rooms, agricultural equipment enclosures, industrial machinery housings, and any installation where re-entry for pump adjustment is significantly more difficult than initial installation. If the cost or complexity of going back in exceeds the cost of getting it right the first time — the RTR-RKA4G35NL is the correct specification.
• Factory performance test report included — every RTR-RKA4G35NL ships with a factory performance test report documenting the operational verification completed before shipment. For applications where documentation of tested performance is required — service records, warranty claims, or facility compliance — the test report is in the box.

Everything in the Package — RTR-RKA4G35NL Contents

Factory-Plumbed. Factory-Tested. Factory-Documented. Install and Run.

• RKA4G35NL triplex ceramic plunger pump — RTR factory operationally tested — run under operating conditions, pressure-set, bypass calibrated, and verified before shipment. Forged brass manifold, ceramic plungers, stainless steel valves, 24mm solid keyed shaft, 45mm extended length — factory-installed and factory-confirmed operational.
• Factory-installed inlet plumbing — inlet connections are factory-assembled and leak-tested. No custom inlet plumbing work required at installation. Connect the supply. Done.
• Factory-installed outlet plumbing — high-pressure outlet connections are factory-assembled and verified. Connect the high-pressure line. Done.
• Integrated bypass system — factory-installed and factory-calibrated for safe pressure relief when the trigger gun is released. Bypass behavior verified under operating conditions as part of RTR testing.
• Thermal protection kit — prevents overheating during bypass recirculation. Critical in enclosed installations where heat dissipation is limited and extended bypass periods are part of the operating cycle.
• Gymatic C2 unloader — factory-matched and factory-calibrated for the 4.0 GPM / 3,500 PSI duty point at 1,450 RPM. Pressure-set and locked as part of RTR operational testing.
• Shaft protector and safety covers — installed at the factory. Protects the 24mm NL shaft during shipping and simplifies safe handling during installation in confined or overhead work environments.
• Factory performance test report — documents the operational verification completed before shipment. Flow, pressure, bypass behavior, and seal integrity confirmed and recorded.
• Pre-filled break-in oil — crankcase pre-filled. Oil sight glass and vented dipstick for ongoing monitoring.
• Complete user manual and documentation — installation, operating, service, and rebuild procedures with Annovi Reverberi part numbers for every serviceable component.

Decoding the RTR-RKA4G35NL

What Every Segment of This Annovi Reverberi Designation Tells You

• RTR — Ready to Run: factory operationally tested under load, pressure-set, bypass calibrated, and verified by Annovi Reverberi’s factory service department. Factory performance test report included. No field calibration required under any circumstances.
• RKA — Pump series: RKA Series triplex plunger pump — Annovi Reverberi’s commercial direct drive and belt drive platform
• 4G — Pump series identifier for this RKA configuration
• 35 — Pump series designation for this RKA configuration — rated 3,500 PSI
• N — Shaft type: Natural solid shaft — 24mm solid keyed crankshaft for direct drive and belt drive coupling
• L — Shaft length: Extended — 45mm shaft length providing enhanced drive engagement and coupling stability under load

Key Specifications

RTR-RKA4G35NL Technical Details at a Glance

• Flow Rate: 4.0 GPM (gallons per minute)
• Maximum Pressure: 3,500 PSI
• Cleaning Units: 14,000 (GPM × PSI)
• Operating Speed: 1,450 RPM — low-speed operation for reduced heat, noise, and component wear
• Pump Type: RKA Series triplex ceramic plunger pump — smooth, low-pulsation output
• Shaft: 24mm solid keyed (N designation), 45mm extended length (L designation) — for direct drive and belt drive installations
• Manifold: Forged brass — corrosion resistance for water-based cleaning and detergent exposure
• Plungers: Heavy-duty ceramic — heat and wear resistance under demanding duty cycles
• Valves: Stainless steel — chemical durability and long service life
• Unloader: Gymatic C2 — factory-matched and factory-calibrated as part of RTR operational testing
• Inlet Plumbing: Factory-installed and leak-tested
• Outlet Plumbing: Factory-installed and verified
• Bypass System: Integrated — factory-installed and calibrated
• Thermal Protection: Thermal protection kit — factory-installed
• Shaft Protector: Included — factory-installed for shipping and handling protection
• Pre-Shipment Documentation: Factory performance test report included
• Lubrication: Oil-bath crankcase with factory pre-filled break-in oil
• Serviceability: Oil sight glass and vented dipstick
• Warranty: 5-year commercial warranty — US-based coverage through Annovi Reverberi North America

4.0 GPM at 3,500 PSI — High-Flow, Controlled-Pressure Profile

Volume-First Applications. Surface-Sensitive Output. Extended Duty Cycles.

The RTR-RKA4G35NL‘s 4.0 GPM / 3,500 PSI output profile is purpose-designed for applications where high flow volume matters more than maximum impact pressure — and where the pump runs continuously across extended service cycles in enclosed or thermally constrained environments:

• High-flow vehicle and equipment washing — 4.0 GPM delivers fast rinse coverage across large vehicle surfaces, truck bodies, and equipment exteriors where volume output drives cleaning cycle time more than pressure impact
• Surface-sensitive cleaning at 3,500 PSI — controlled 3,500 PSI output protects painted surfaces, coated equipment, and specialty vehicle finishes where higher pressure risks damage during routine washing cycles
• Low-speed extended duty operation at 1,450 RPM — the RTR-RKA4G35NL’s 1,450 RPM operating speed reduces heat generation in enclosed installations where thermal management is a design constraint. Cooler running means longer seal life, longer bearing life, and more reliable performance in tool box, compartment, and enclosed machinery installations
• Food and beverage facility washdown — USDA-compliant washdown processes where 3,500 PSI controlled pressure and high-volume 4.0 GPM flow handle facility sanitation requirements without risking surface or equipment damage from excessive impact

Typical Applications

Where the RTR-RKA4G35NL Is the Required Specification

• Vacuum truck hydro-excavation tool box pressure washer systems — the primary application for the RTR-RKA4G35NL. Tool box compartment installation with 4+ hours of access labor, full reassembly before testing, zero tolerance for field calibration. RTR factory operational testing is the only acceptable specification for this installation type.
• Work truck compartments and integrated service body installations — enclosed service body bays, drawer systems, and compartment installations where access after installation requires significant re-entry work. Factory-set pressure and factory-verified bypass behavior eliminate post-installation calibration requirements.
• Conveyor system wash heads and elevated installations — pumps mounted at conveyor tops, elevated wash stations, and overhead service platforms where post-installation access requires lift equipment or scaffold. RTR pre-calibration means the pump works the first time, every time — without a second trip up.
• Fleet and commercial vehicle washing — high-volume 4.0 GPM output and controlled 3,500 PSI pressure handle fleet vehicle cleaning efficiently in wash bay installations and mobile systems
• Fire station wash bays and rental equipment fleets — frequent high-pressure use environments where plug-and-play RTR installation supports fast deployment and minimal setup time for service teams
• Food and beverage facility washdown — USDA-compliant washdown processes requiring documented, verified performance from a factory performance test report

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

Factory-Tested. Performance-Documented. Backed for Five Years. Parts Available Nationally.

The RTR-RKA4G35NL is protected by Annovi Reverberi’s 5-year commercial warranty through the US-based warranty and service network administered by AR North America. Every internal wear component — ceramic plungers, forged brass manifold seals and o-rings, stainless valve seats, Gymatic C2 unloader service parts, packing kits, and crankcase bearings — is stocked nationally through authorized AR North America distribution channels. Contractors, fleet operators, facility managers, hydro-excavation operators, OEM equipment builders, and service operations stocking RTR replacement inventory are invited to contact the WSHPWR wholesale team for pricing on the RTR-RKA4G35NL 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.

14,000 Cleaning Units. 3,500 PSI. 4.0 GPM. 24mm NL Shaft. RTR Factory-Set. Performance-Documented. Works the First Time.

Italian Engineering. Ready to Run. Factory Performance Test Report Included. 5-Year US Warranty.

When the installation is in a tool box compartment on a vacuum truck. When reassembly takes four hours. When the compartment has to be closed before the system can be tested. When there is no second chance to calibrate — the RTR-RKA4G35NL is the only correct specification. Factory operationally tested. Pressure-set. Bypass calibrated. Inlet and outlet plumbing factory-installed. Thermal protection kit installed. Factory performance test report in the box. 24mm NL extended shaft. 1,450 RPM low-speed operation. 4.0 GPM high-volume output. Five-year commercial warranty. Install it. Start it. It runs.

Service operations and wholesale accounts stocking RTR-RKA4G35NL replacement inventory can reach the WSHPWR wholesale team directly at wholesale@wshpwr.com to discuss pricing across the complete Annovi Reverberi pump package lineup.