RKASS7G22N | 7 GPM 2200 PSI Triplex Pump, 1750 RPM, SS 24mm

RKASS7G22N — 7.0 GPM, 2200 PSI, 1450 RPM, Stainless Valves, 24 mm Solid Shaft

• The RKASS7G22N is an industrial-duty triplex plunger pump engineered for high-capacity washing systems that must run for long intervals with stable pressure, predictable flow, and minimal mechanical stress.
• Delivering 7.0 GPM at 2200 PSI at a slow 1450 RPM, this model is optimized for cooler crankcase temperatures, reduced vibration, and extended service life compared with high-speed direct-drive configurations.
• The 24 mm solid shaft provides broad compatibility with belt-drive arrangements, gear reductions, electric-motor systems, and gas-engine builds where long-term reliability is the priority.
• Stainless steel valves, ceramic plungers, and oversized bearings allow the pump to operate continuously in harsh, moisture-rich, or chemically exposed environments often found in industrial and commercial cleaning.

Performance and Duty Characteristics

• Rated 7.0 GPM at 2200 PSI, the pump supports large-orifice nozzles, wide-path surface cleaners, and fast-rinse accessories, making it ideal for applications where throughput and coverage speed matter.
• The slow-running 1450 RPM operation reduces heat generation inside the crankcase, protecting bearings, connecting rods, and packings during multi-hour operation.
• Smooth triplex output provides stable pressure recovery when the trigger is cycled, ensuring consistent downstream performance for operators and automated wash systems.
• The pump is suitable for mobile contractor rigs, stationary wash bays, fleet centers, and sanitation lines that demand predictable uptime.

Flow and Pressure Profile

• 7.0 GPM enables rapid rinsing, improved chemical displacement, and faster coverage of vehicles, equipment, or structural surfaces.
• 2200 PSI provides controlled yet effective surface impact, ideal for wash work where precision is preferred over extremely high-pressure cutting.
• The combination of moderate PSI and high flow reduces cleaning time on large equipment or multi-vehicle wash lanes.
• Capabilities extend to light degreasing, routine maintenance cleaning, and food-plant sanitation where higher PSI is not always required.

Pump Construction and Materials

• The triplex plunger system ensures low pulsation and supports accessories that require steady, predictable water delivery.
• Stainless steel valves provide corrosion resistance and maintain sealing integrity when exposed to detergents, sanitizers, and recycled water systems.
• Ceramic plungers reduce frictional heat transfer, extend packing life, and maintain dimensional stability under continuous load.
• Oversized crankcase bearings support long duty cycles, reducing wear during daily usage in commercial wash environments.

Seals, Valves, and Wet-End Components

• High-pressure packings are formulated for repeatable sealing in systems that cycle frequently between bypass and load.
• Stainless valve assemblies give consistent seating and volumetric efficiency across long service intervals.
• Manifold tolerances maintain alignment over time, ensuring smooth plunger travel and extended packing life.
• Wet-end service kits allow in-house rebuilds to minimize downtime.

Drive, Mounting, and System Integration

• RKASS7G22N pump has a 24 mm solid keyed shaft is ideal for pulley-driven systems where technicians can fine-tune pump speed to match available horsepower.
• Compatible with electric motors, gas engines using belt-drive reduction, and gear-driven assemblies where accurate alignment and rigidity are required.
• Fits standard industrial pump rails, welded platforms, and skid-based mobile cleaning systems.
• Low-speed operation pairs especially well with 4-pole electric motors when configured through a proper pulley ratio.

Inlet Conditions and System Design

• Adequate inlet flow must be maintained—7.0 GPM pumps require oversized supply lines, low-restriction strainers, and stable water sources.
• Bypass routing should be directed to a tank or cooling loop to prevent temperature buildup during extended trigger-off periods.
• All hoses, unloaders, guns, and fittings must be rated to at least 2200 PSI to ensure safe continuous-duty operation.
• Systems should include thermal relief protection where bypass recirculation is unavoidable.

Service, Maintenance, and Operational Reliability

• RKASS7G22N is delivered with factory break-in oil, reducing initial setup steps for OEM installers and technicians.
• Integrated oil sight glass provides rapid condition checks, helping crews identify contamination or low oil levels early.
• The vented dipstick stabilizes crankcase pressure and facilitates clean, simple oil changes.
• When operated within design limits and maintained regularly, the pump delivers long predictable service life across multiple rebuild cycles.

Preventive Maintenance and Rebuild Path

• Routine inspections should include oil clarity, leaks, belt condition, unloader operation, and pressure stability during load transitions.
• Seal and valve kits provide an economical maintenance path to extend operational life in high-use facilities.
• Technical schematics and documentation assist service teams with accurate wet-end and crankcase rebuilds.
• Predictive scheduling of rebuilds reduces downtime in fleet-wash or multi-station wash bays.

RKASS7G22N Applications and Use Cases

• Fleet washing operations servicing trucks, buses, municipal vehicles, and delivery vans.
• Equipment rental centers requiring dependable daily wash cycles for returning machinery.
• Contractor pressure-washing trailers and mobile rigs built for all-day operation.
• Paint booth and automotive depot cleanup where high flow speeds residue removal.
• USDA-compliant food processing plants using appropriate sanitation procedures and accessories.
• Industrial and commercial facilities needing dependable washdown power for floors, equipment, and staging areas.