RW21 DNR replacement pump | supersedes RG2125HN

Annovi Reverberi RW21 Triplex Plunger Pump – 5.5 GPM, 3,000 PSI, 1,450 RPM

System Role

• Commercial-grade triplex plunger replacement pump engineered for high-volume, continuous-duty pressure washer applications.
• Direct replacement fit for RG2125HN-style systems where dependable output and service life are required.
• Low-speed 1,450 RPM design supports cooler operation and reduced wear in daily-use wash environments.
• 24 mm solid keyed shaft supports belt-drive gas engine systems and electric motor drive configurations.

Key Specifications

Ratings & Configuration

• Model: RW21.
• Flow: 5.5 GPM.
• Maximum Pressure: 3,000 PSI.
• Speed: 1,450 RPM.
• Pump Type: Triplex plunger pump.
• Shaft: 24 mm solid keyed shaft.
• Warranty: 5-year warranty with nationwide service support.

What’s Included

In-Box Components

• Factory break-in oil pre-filled for immediate use.
• Oil sight glass for quick monitoring of oil levels.
• Vented dipstick for crankcase ventilation and routine oil checks.
• Mounting bolts for secure pump installation.
• Operator’s manual with installation instructions and parts schematic.
• Protective packaging for transport and storage.

Operation

Triplex Plunger Output

• Triplex ceramic plunger system produces steady flow and consistent pressure with reduced pulsation.
• Low-speed 1,450 RPM operation reduces heat loading to support longer seal, bearing, and connecting rod life.
• 24 mm keyed shaft supports flexible drive integration for belt-driven and direct-coupled builds.
• Designed for continuous-duty cycles where stable output and uptime are primary requirements.

Premium Features

Construction Elements

• Forged brass manifold supports corrosion resistance and heavy-duty durability.
• Solid ceramic plungers support heat and abrasion resistance for extended seal life.
• Stainless steel valves support reliable sealing and efficient flow control.
• Heavy-duty crankshaft and connecting rods support durability under demanding workloads.
• Service access features support routine inspection through sight glass and vented dipstick.
• Continuous-duty-capable build supports long operating cycles with minimized downtime exposure.

Benefits

Operational Advantages

• High-output performance supports industrial-grade cleaning at 5.5 GPM and 3,000 PSI.
• Low-speed durability supports longer service life through reduced heat and wear.
• Heavy-duty materials support reliable performance in harsh work environments.
• Flexible mounting supports belt-drive and electric-driven systems using a 24 mm keyed shaft.
• Warranty coverage supports long-term ownership planning and service availability.

Typical Applications

Use Cases

• Fleet and vehicle washing programs.
• Heavy equipment cleaning and jobsite washdown.
• Agricultural washdown operations and farm sanitation workflows.
• Municipal maintenance and sanitation services.
• Industrial wash bays and facility maintenance departments.
• Pressure washing trailers and contractor mobile wash rigs.