RKA7G20HE-F17 7.0 GPM 2000 PSI | High-Flow Triplex

Annovi Reverberi RKA7G20HE-F17 Triplex Plunger Pump

Overview

The Annovi Reverberi RKA7G20HE-F17 is a high-capacity, slow-speed triplex plunger pump
engineered for commercial and light industrial pressure washer systems that prioritize
high flow, efficient coverage, and long service life. Delivering up to
7.0 GPM at 2,000 PSI while operating at a controlled 1,750 RPM,
this pump is ideal for applications where rapid rinsing, surface coverage, and reduced
mechanical stress are more important than extreme pressure.

Built on the proven RKA Series platform, the RKA7G20HE-F17 combines a
nickel-plated brass manifold, ceramic plungers, and
bronze connecting rods with a robust electric-drive configuration.
Its F17 flange with a 1-1/8 inch hollow shaft allows direct mounting to
NEMA 182–184 frame electric motors or integration into belt-drive systems, making it
a flexible solution for OEM builders, contractors, and facility maintenance teams.

Performance & Duty Point

With a duty point of 7.0 GPM at 2,000 PSI, the RKA7G20HE-F17 is optimized for
high-throughput cleaning. This performance profile produces strong mechanical
cleaning action while maintaining a broad spray pattern, allowing operators to cover
large areas faster with fewer passes. The moderate pressure level also reduces the risk
of surface damage on concrete, painted steel, coated floors, and sensitive equipment.

• High flow: 7.0–7.1 GPM supports rapid rinsing and debris transport.
• Controlled pressure: 2,000 PSI balances cleaning force with surface safety.
• Slow-speed operation: 1,750 RPM minimizes heat, vibration, and component wear.
• Power requirement: Approximately 10 EBHP for efficient electric motor pairing.

Key Specifications

• Pump Type: Triplex plunger
• Series: 228 (RKA)
• Flow Rate: Up to 7.1 GPM (27 L/min)
• Maximum Pressure: 2,000 PSI (138 bar)
• Operating Speed: 1,750 RPM
• Shaft: 1-1/8″ hollow shaft, electric configuration
• Flange: F17 (NEMA 182–184 frame)
• Head Material: Nickel-plated brass
• Plungers: Solid ceramic
• Connecting Rods: Bronze
• Valves: Stainless steel
• Inlet: 1/2″ female
• Outlet: 3/8″ female
• Oil Capacity: 15 oz
• Maximum Fluid Temperature: 140°F
• Weight: 21 lbs
• Orientation: Horizontal

Construction & Materials

The RKA7G20HE-F17 is built with durability as a primary design objective. The
nickel-plated brass manifold provides superior resistance to corrosion,
chemical exposure, and mineral buildup compared to standard brass. This makes the pump
well suited for frequent detergent use, reclaimed water systems, and demanding
commercial environments.

Internally, ceramic plungers offer excellent hardness and thermal stability,
maintaining smooth sealing surfaces over thousands of operating hours. The use of
bronze connecting rods reduces friction and absorbs load efficiently,
contributing to quiet operation and extended bearing life.

Drive End & Lubrication

The pump utilizes an oil-bath crankcase with a generous 15 oz oil capacity,
ensuring continuous lubrication of bearings, crankshaft, and connecting rods. A
vented dipstick and oil sight glass allow for quick visual
inspection during routine maintenance checks.

• Oil-bath lubrication supports continuous-duty operation.
• Slow-speed design reduces oil temperature rise.
• Sight glass simplifies daily inspection routines.
• Drain and fill access support fast oil changes.

Installation & System Integration

The F17 flange and 1-1/8 inch hollow shaft configuration allows the
RKA7G20HE-F17 to mount directly to common electric motors without complex adapters.
This simplifies alignment, reduces vibration, and shortens installation time.
The pump may also be driven via belt or pulley systems where additional speed
reduction or layout flexibility is required.

• Direct electric motor mounting for compact system builds.
• Compatible with belt-drive arrangements for custom skids.
• Standard inlet and outlet ports support common plumbing components.
• Works seamlessly with unloaders, regulators, and safety relief valves.

Typical Applications

Because of its high flow and moderate pressure, the RKA7G20HE-F17 excels in applications
where coverage speed and rinse efficiency are critical:

• Fleet washing: Trucks, buses, trailers, and heavy equipment.
• Commercial cleaning: Parking decks, sidewalks, loading docks, and warehouses.
• Industrial washdown: Machinery, production floors, and maintenance bays.
• Agriculture: Livestock areas, equipment cleaning, and facility sanitation.
• Large residential systems: Driveways, walls, roofs, and exterior surfaces.

Why Choose the RKA7G20HE-F17

The Annovi Reverberi RKA7G20HE-F17 is designed for operators who need
high-volume cleaning without the stress and wear associated with high-RPM pumps.
Its triplex plunger architecture delivers smoother flow than axial designs, while the
slow-speed crankshaft and premium materials reduce lifecycle costs.

• High-flow efficiency for faster job completion.
• Reduced vibration and heat for extended service life.
• Nickel-plated brass and ceramic internals for durability.
• Electric-drive compatibility for clean, quiet operation.
• Excellent choice for commercial-duty pressure washer systems.

Conclusion

The Annovi Reverberi RKA7G20HE-F17 is a proven, commercial-grade triplex pump
that delivers 7.0 GPM at 2,000 PSI with the efficiency and durability required
for demanding cleaning environments. With its slow-speed operation, premium materials,
and flexible electric-drive mounting, it is a reliable foundation for fleet wash
systems, industrial washdown stations, and high-capacity cleaning rigs where uptime,
coverage, and longevity are essential.