RKASS7G30N | 7.1 GPM 3000 PSI Triplex Pump, 1750 RPM, SS 24mm

RKASS7G30N — 7.0 GPM 3000 PSI Triplex Pump, 1450 RPM, 24 mm Solid Shaft

• The RKASS7G30N is a professional-grade triplex plunger pump engineered for heavy-duty commercial and industrial cleaning systems that demand both high flow and stable pressure.
• Delivering 7.0 GPM at 3000 PSI at a slow-running 1450 RPM, it combines strong cleaning power with cooler operation and reduced mechanical stress on internal components.
• A 24 mm solid shaft integrates cleanly with belt-drive systems, gearboxes, or engine couplers, giving OEMs and fleet builders flexibility in how the pump is driven.
• Stainless steel valves, ceramic plungers, and oversized bearings are specified to support continuous-duty use in demanding wash bays, mobile rigs, and industrial facilities.

Performance of RKASS7G30N and Operating Envelope

• Rated 7.0 GPM at 3000 PSI, the RKASS7G30N is designed for high-production cleaning where operators must cover large areas, equipment fleets, or structures in limited time.
• The 1450 RPM operating speed gives the pump a slow-speed duty profile that reduces heat buildup, lowers vibration, and supports longer service intervals compared with high-speed direct-drive units.
• The flow and pressure combination is well suited to surface cleaners, rotary nozzles, dual-gun systems, and other high-demand accessories sized for 7 GPM service.
• When matched with properly rated hose, gun, and nozzle sets, the pump provides consistent impact at the surface and stable pressure at the trigger.

RKASS7G30N Flow, Pressure, and Duty Profile

• 7.0 GPM gives operators the ability to rinse quickly, feed larger orifice tips, and operate wide-path cleaning tools on concrete pads, parking decks, and drive lanes.
• 3000 PSI working pressure delivers strong cutting action on baked-on dirt, road film, oil deposits, and organic buildup across trucks, equipment, and structural surfaces.
• The pump is built for frequent or continuous operation in multi-hour shifts when supplied with adequate inlet flow and supported by an appropriate unloader and relief system.
• The duty profile fits trailer-mounted rigs, shop-based wash bays, and centralized systems serving multiple cleaning stations in industrial or municipal environments.

Pump Construction and Materials

• The RKASS7G30N uses a triplex plunger configuration that produces low-pulsation flow, improving operator comfort and limiting stress on downstream hoses and fittings.
• Stainless steel valves are specified for corrosion resistance and long-term seating accuracy when exposed to typical wash chemistries and moisture.
• Ceramic plungers provide a hard, dimensionally stable sealing surface, reducing wear on packing sets during extended high-pressure operation.
• Oversized bearings and a robust crankshaft are selected to carry the combined radial and axial loads associated with slow-speed, high-flow duty.

Plungers, Valves, and Sealing System

• Ceramic plungers limit heat transfer into the seal area and maintain a smooth, wear-resistant surface for reliable sealing over long service intervals.
• Stainless valves are engineered for rapid opening and closing, helping maintain volumetric efficiency and quick pressure recovery when the trigger is cycled.
• Packings and high-pressure seals are configured for repeatable performance at 3000 PSI when used with clean water and compatible detergents.
• Seal and valve kits are available for planned maintenance, allowing the wet end to be rebuilt in-house when wear eventually occurs.

Drive, Mounting, and Integration

• The 24 mm solid shaft is suited for belt-drive arrangements where speed can be matched to prime mover ratings while maintaining the pump’s 1450 RPM design point.
• Shaft geometry also supports use with flexible couplers and gearboxes in applications where direct mechanical coupling is preferred over belts.
• The pump’s mounting footprint fits standard industrial bases, welded skids, and trailer frames used for mobile wash systems and fixed wash bays.
• Slow-speed operation makes the RKASS7G30N a strong candidate for electric motor-driven rigs built around 4-pole motors when proper drive ratios are used.

System Design and Inlet Conditions

• A 7.0 GPM pump requires generous inlet plumbing; suction lines, valves, and strainers must be sized to provide unrestricted flow and minimal pressure drop.
• Supply is best taken from a properly vented feed tank or steady water source with adequate reserve volume for continuous-duty use.
• Unloader, safety relief valve, hose, gun, and nozzle components must be rated for at least 3000 PSI and compatible with any cleaning chemicals in use.
• Bypass routing should be configured to control water temperature during extended trigger-off periods, especially on hot-water or recirculating systems.

Service, Maintenance, and Reliability

• The pump RKASS7G30N is supplied with factory pre-filled break-in oil, reducing commissioning steps and protecting internal components during early run-in hours.
• An integrated oil sight glass allows quick visual checks of oil level and basic condition as part of daily or pre-shift inspections.
• The vented dipstick supports crankcase pressure control and provides straightforward access for oil sampling and changes.
• When inlet conditions, drive alignment, and lubrication schedules are maintained within specification, the RKASS7G30N is designed to deliver long, predictable service life.

Preventive Maintenance and Rebuild Planning

• Routine checks should include inspection for leaks, verification of oil level and clarity, belt or coupling condition, and confirmation of stable operating pressure.
• Planned replacement of seals and valves based on run hours, duty cycle, and water quality helps avoid unexpected downtime during peak work periods.
• Exploded diagrams and parts lists support accurate kit selection and efficient bench or on-rig rebuilds by in-house technicians or service partners.
• With a structured maintenance program, the pump’s core components—crankcase, shaft, and bearings—can remain in service over multiple seal and valve kit cycles.

RKASS7G30N Applications and Use Cases

• Trailer- and truck-mounted mobile wash systems used for fleet washing, heavy equipment cleaning, and contractor surface-cleaning routes.
• Construction equipment and machinery washdown, including loaders, excavators, skid steers, and support vehicles exposed to mud, dust, and hydraulic oil.
• Fleet and fire-department vehicle wash bays where reliable, high-volume output is required for daily cleaning of trucks, engines, and support units.
• Rental fleet pressure-washer equipment designed for demanding users who expect continuous-duty performance from shared machines.
• USDA facility washdowns and sanitation lines when paired with appropriate components and procedures for the specific regulatory environment.
• Roof washing, graffiti removal, parking garage cleaning, and other large-surface projects where 7.0 GPM flow helps reduce cleaning time and labor per job.