Annovi Reverberi RQW22G26-EZ Vertical Pump
The Annovi Reverberi RQW22G26-EZ is a vertical-shaft triplex plunger pump engineered for residential and
light-duty commercial pressure washer platforms requiring stable output, predictable performance, and
minimal maintenance. Its compact footprint allows direct mounting beneath vertical-shaft gas engines,
making it a practical replacement for OEM units while offering improved reliability and ease of operation.
With a performance rating of 2.2 GPM at 2,600 PSI, the pump provides balanced pressure for cleaning tasks
that demand controlled impact without unnecessary strain on small engines.
This model integrates AR’s proven design features—ceramic plungers, precision-machined internal
components, and durable sealing systems—ensuring dependable operation throughout routine seasonal cleaning
cycles. The easy-start mechanism reduces initial load on the engine during pull-start, creating smoother
starts and extending service life. For users seeking a straightforward upgrade that enhances durability
without complicating installation, the RQW22G26-EZ delivers a factory-fit solution with industrial lineage.
Construction and Component Design
- Vertical pump layout engineered for direct coupling to common residential vertical-shaft engines.
- Ceramic plunger set maintains structural stability and reduces wear under intermittent operation.
- Oversized sealing components designed to handle temperature fluctuations typical of consumer units.
- Forged brass head optimized for long-term resistance to water intrusion and chemical exposure.
- Hardened stainless valves ensure consistent flow characteristics during extended service cycles.
- Thermal relief valve protects internal components from heat accumulation during bypass operation.
Performance Characteristics
- Delivers 2.2 GPM performance suitable for general surface cleaning, vehicle maintenance, and exterior washdown.
- Produces 2,600 PSI for effective penetration of dirt, mildew, and embedded debris without excessive force.
- Designed for stable, smooth pressure delivery eliminating pressure surges found in lower-grade pumps.
- Maintains engine-friendly rotational loading, protecting small engines from over-torque stress.
- Optimized water pathway design supports consistent temperature control during operational cycles.
Included Features with RQW22G26-EZ
- Complete pump assembly preconfigured for vertical-shaft mounting.
- Integrated easy-start valve to reduce crank resistance and ease cold starts.
- Factory-installed thermal relief system for pump protection and safe operation.
- Quick-connect discharge fitting for rapid hose attachment.
- Standard garden-hose inlet port with built-in screen filter to prevent particulate intrusion.
Operational Function
The pump operates through a direct interface with the engine’s downward-facing shaft. Rotation drives the
crankcase assembly, cycling the ceramic plungers through suction and discharge strokes to generate the
rated pressure and flow. During startup, the easy-start system momentarily relieves internal pressure,
allowing the engine to gain momentum prior to loading. This design minimizes hard-pull incidents and
reduces kickback, particularly valuable for operators using equipment intermittently or in seasonal
conditions.
Pump Behavior During Use
- Smooth plunger action creates predictable discharge pressure for controlled cleaning performance.
- Thermal valve manages bypass heat, protecting seals and extending service life.
- Pulsation-reducing internal geometry provides a more consistent spray pattern in practical field use.
Typical Applications for RQW22G26-EZ
- Residential vehicle washing including cars, light trucks, and recreational vehicles.
- Patio, deck, and fence maintenance where controlled pressure is required.
- Driveway, walkway, and concrete slab cleaning for routine upkeep.
- Exterior building washing for siding, brick, and painted surfaces.
- Light-duty commercial upkeep for small facilities, maintenance crews, or mobile operators.
Advantages for Replacement and Upgrades
- Direct-fit vertical design streamlines installation for most consumer pressure washer frames.
- Provides a performance increase over standard OEM axial pumps without altering equipment layout.
- Improves service life with higher-quality internals, reducing downtime from pump failure.
- Easy-start system lowers user effort and engine strain, particularly beneficial after long storage periods.
- Cost-effective upgrade path compared to replacing the entire pressure washer assembly.
Summary
The RQW22G26-EZ is a purpose-built vertical triplex pump that elevates the durability and operating quality
of residential and light-commercial pressure washers. Its balanced 2.2 GPM and 2,600 PSI performance profile,
combined with AR’s rugged internal architecture, offers a reliable and user-friendly replacement solution.
For operators who require a straightforward installation, consistent performance, and components designed to
outlast consumer-grade alternatives, this model represents a dependable fit for long-term ownership and
routine maintenance work aligned with WSHPWR.com standards.





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