JRV3G30D-F7 by Annovi Reverberi — JRV Series Axial Radial Pump with Integrated Unloader | 3.0 GPM | 3,000 PSI | Brass Head | 3,400 RPM | Fixed 12% Injector | Easy Start | 9,000 Cleaning Units
The JRV3G30D-F7 by Annovi Reverberi is a JRV Series axial radial pump with integrated unloader delivering 3.0 GPM at 3,000 PSI at 3,400 RPM — engineered for direct gas engine coupling via the F7 3/4″ Gas Shaft interface. Rated at 3.0 GPM and 3,000 PSI, the JRV3G30D-F7 delivers 9,000 cleaning units — through a brass head, ceramic pistons, aluminum connecting rods, an integrated adjustable unloader, and a fixed 12% chemical injector in one compact, factory-assembled pump body. The JRV Series operates at 3,400 RPM direct drive — compatible with standard 5-7 HP gasoline engines via the F7 SAE J609a 3/4″ hollow shaft interface. Protected by a 2-year US limited warranty and built to be fully rebuilt rather than replaced. As part of Annovi Reverberi’s pump and unloader assemblies stocked and supported by WSHPWR, the JRV3G30D-F7 is the complete integrated JRV solution for gas engine-powered pressure washing at 3,000 PSI.
Easy Start — Zero Back Pressure at Every Startup
Bypass Opens at Engine Start. Engine Engages Freely. System Builds to Rated Pressure.
The Easy Start feature on the JRV3G30D-F7 opens the bypass circuit at engine startup — the engine starts against zero hydraulic back pressure. No resistance from a pressurized pump on every pull. Once the engine reaches operating speed the bypass closes and the system builds to rated pressure. Reduces recoil starter wear and pull-cord effort on every startup.
Engine Compatibility — What Drives the JRV3G30D-F7
F7 SAE J609a. 3/4″ Hollow Shaft. 6.2 EBHP Minimum. Direct Bolt-On to Common Small-Frame Gas Engines.
Easy Start opens the bypass circuit at startup — the engine engages freely and builds to pressure at operating speed. The JRV3G30D-F7‘s F7 SAE J609a 3/4″ hollow keyway shaft is the standard interface for 5-7 HP small-frame gasoline engines. Confirmed compatible platforms include:
- Harbor Freight Predator 224cc / 6.6 HP Max Performance — the preferred Predator pairing. 3/4″ keyway shaft. Direct replacement for Honda GX200 and Briggs & Stratton XR950.
- Harbor Freight Predator 212cc / 6.5 HP — 3/4″ keyway shaft. Compatible for residential and contractor builds.
- Honda GX200 / 5.5 HP — 196cc, 3/4″ keyway shaft. Direct-mount compatible with the JRV3G30D-F7 F7 flange.
- Briggs & Stratton XR950 — 3/4″ keyway shaft. Compatible for residential builds.
- Kohler CH270 / Command series — 3/4″ keyway shaft. Compatible for applicable configurations.
JRV Series — 3,400 RPM Gas Engine Platform
- Brass Head — correct specification for the duty cycle — Brass head construction on every JRV Series model — the correct specification for sustained residential and light commercial pressure washing duty cycles.
- Aluminum connecting rods — lightweight and frictionless — the JRV Series aluminum connecting rod specification delivers smooth, low-friction operation across residential and light commercial duty cycles at 3,400 RPM.
- Adjustable integrated unloader — set working pressure to match nozzle selection, surface type, and application requirements without sourcing a separate unloader valve.
- Fixed 12% chemical injector — ready for detergent delivery — the integrated 12% injector is already in the pump. Add the detergent hose and filter to complete the system.
- Fully rebuildable — every wear component is individually available through AR North America’s nationwide distribution network.
Key Specifications
JRV3G30D-F7 Technical Details at a Glance
- Flow Rate: 3.0 GPM
- Maximum Pressure: 3,000 PSI (207 bar)
- Cleaning Units: 9,000 (GPM x PSI)
- Operating Speed: 3,400 RPM
- Power Required: 6.2 EBHP minimum
- Pump Type: JRV Series axial radial — integrated unloader, fully rebuildable
- Head Material: Brass Head
- Pistons: Ceramic
- Connecting Rods: Aluminum
- Shaft/Flange: 3/4″ hollow keyway shaft — F7 SAE J609a — direct drive 5-7 HP gasoline engine
- Bore Diameter: 12mm / Stroke: 10.7mm
- Inlet: 3/8″ F
- Outlet: 3/8″ M
- Oil Capacity: 5.43 oz
- Weight: 8.9 lbs
- Max Temperature: 140 degrees F
- Easy Start: EZ included — bypass opens at startup, engine starts freely
- Integrated Unloader: Adjustable — set working pressure to match application requirements
- Chemical Injector: Fixed 12% — integrated; detergent hose and filter sold separately
- Serviceability: Fully rebuildable — all components nationally available through AR North America
- Warranty: 2-year limited warranty — US-based coverage through Annovi Reverberi North America
JRV3G30D-F7 Typical Applications
- Residential and contractor pressure washing — 3.0 GPM / 3,000 PSI from a compact brass head axial platform with integrated chemical delivery and F7 3/4″ gas engine shaft
- OEM equipment builds and replacements — integrated pump-and-unloader format with AR North America nationally stocked parts simplifies OEM design and field replacement
- Residential and light commercial cleaning programs — 9,000 cleaning units with integrated pressure regulation for consistent output
- Complete the chemical delivery system — add the DETHOSE-FIL6X 6ft Detergent Hose with Red Filter to complete downstream chemical delivery at the JRV3G30D-F7 injector port.
2-Year US Warranty, National Parts Availability, and Wholesale Pricing
JRV3G30D-F7 — JRV Series. Brass Head. Integrated Unloader. Backed for Two Years.
The JRV3G30D-F7 is protected by Annovi Reverberi’s 2-year limited warranty through the US-based warranty and service network administered by AR North America. Every wear component is stocked nationally through authorized AR North America distribution channels. OEM builders, electric motor system integrators, resellers, and volume buyers are invited to contact the WSHPWR wholesale team for pricing on the JRV3G30D-F7 and the complete WSHPWR pump package lineup.
9,000 Cleaning Units. 3,000 PSI. 3.0 GPM. Brass Head. 3,400 RPM. Integrated Unloader. Fixed 12% Injector. Easy Start. F7 3/4″ Gas Shaft. 2-Year US Warranty.
Annovi Reverberi JRV Series. Axial Radial. 3,400 RPM. Integrated Unloader. Fully Rebuildable. Nationwide Service.
The JRV3G30D-F7 is the complete JRV integrated axial solution for gas engine-powered pressure washing at 3,000 PSI and 3,400 RPM — brass head, ceramic pistons, aluminum connecting rods, integrated adjustable unloader, and fixed 12% chemical injector in one compact factory-assembled pump body. Easy Start on every startup. Two-year US warranty. Nationwide AR North America service centers. Fully rebuildable.
Volume buyers can reach the WSHPWR wholesale team at wholesale@wshpwr.com.








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