Description

The XW-M21.28N is a heavy-duty, industrial-grade triplex plunger pump from the Annovi Reverberi (AR) XW Series. This pump is a favorite for high-volume, high-pressure applications where “flow is king,” providing an impressive 5.55 GPM while maintaining professional-grade stripping power at 4060 PSI.

XW-M21.28N High-Flow Triplex Pump

Industrial Performance | 5.55 GPM | 4000+ PSI

Designed for the most demanding cleaning environments, the XW-M21.28N operates at a low 1450 RPM. This slower speed reduces mechanical stress, lowers the operating temperature, and significantly extends the service interval of the seals and valves compared to high-speed direct-drive pumps.

Core Specifications

• Flow Rate: 5.55 GPM (21 L/min)

• Maximum Pressure: 4060 PSI (280 bar)

• Rotation Speed: 1450 RPM (Low-speed for longevity)

• Shaft Diameter: 24mm (Solid Shaft)

• Power Requirement: Requires approximately 15.0 to 16.0 HP for peak performance.

Key Features

• High-Volume Output: At 5.55 GPM, this pump is ideal for large-surface cleaning, heavy equipment wash-downs, and hydro-excavation where water volume is as important as pressure.

• Heavy-Duty Manifold: Constructed from high-strength forged brass to withstand the internal pulsations of 4000+ PSI operation.

• Large-Frame Crankcase: Features an increased oil capacity and cooling fins to ensure the pump stays cool during 24/7 or multi-shift operation.

• Solid Ceramic Plungers: Extra-thick ceramic pistons provide a diamond-hard surface that protects against seal abrasion and chemical pitting.

Ideal Applications

• Commercial Surface Cleaning: Driveways, parking lots, and stadium seating.

• Industrial Plant Maintenance: Clearing scale, rust, and heavy grease.

• Sewer Jetting: High enough GPM to power medium-sized jetter nozzles through 4″–8″ lines.

• Multi-Gun Systems: Can support two operators simultaneously if used with the correct flow-splitting unloader system.

Technical Summary