RKSS13.17C | Stainless Triplex Pump, 3.5 GPM 2500 PSI, 1450 RPM

RKSS13.17C — 3.5 GPM 2500 PSI AISI 316 Stainless Triplex Pump, 1450 RPM, 28 mm Hollow Shaft

• The RKSS13.17C is a heavy-duty stainless steel triplex plunger pump designed for aggressive commercial and industrial environments where chemical exposure, heat, and constant washdown are part of daily operations.
• Delivering 3.5 GPM at 2500 PSI at 1450 RPM, it provides controlled, medium-duty cleaning power in a slow-speed configuration that supports cooler running and extended component life.
• An AISI 316 stainless steel head, ceramic plungers, industrial-grade seals, and oversized bearings are specified for continuous-duty operation with caustics, detergents, and elevated water temperatures.
• The 28 mm hollow shaft design offers flexible mounting options to gas engines, gearboxes, or pulley-driven systems, giving OEMs and maintenance teams multiple drive configurations for harsh environments.

Performance and Operating Envelope

• RKSS13.17C Rated 3.5 GPM at 2500 PSI, the RKSS13.17C is optimized for medium-duty washdown, pipe flushing, and equipment cleaning where reliability and control matter more than maximum flow.
• Operating at 1450 RPM, the pump runs slower than typical direct-drive units, reducing mechanical stress, lowering noise levels, and supporting predictable long-term service intervals.
• Its performance window suits single-gun systems and dedicated wash stations in plants, marine facilities, and transport hubs that operate on a daily or shift-based schedule.
• When paired with correctly sized nozzles, unloaders, and hoses, the pump maintains stable discharge pressure and flow across a wide range of cleaning tasks.

Flow, Pressure, and Duty Profile

• 3.5 GPM provides enough volume for effective rinsing of equipment, tanks, ductwork, and structural steel while keeping water consumption and recovery manageable.
• 2500 PSI working pressure delivers strong cutting action on oil, grease, chemical residues, and road film without excessive impact on sensitive surfaces and components.
• The triplex plunger configuration reduces pulsation at the gun, improving operator control and reducing fatigue during extended cleaning cycles.
• The duty profile fits medium-duty industrial washdown, descaling, and sanitation work where long uptime and consistent output are required throughout the shift.

RKSS13.17C Stainless Construction and Material Resistance

• AISI 316 stainless steel pump head is selected for superior resistance to chlorides, caustic cleaners, disinfectants, and corrosive atmospheres that quickly attack brass and lower-grade alloys.
• Stainless wetted pathways maintain dimensional stability and sealing geometry under repeated chemical and thermal cycling in washdown zones.
• Stainless fasteners and external hardware enhance long-term serviceability in areas where the pump is routinely exposed to spray, foam, and chemical mist.
• This construction makes the RKSS13.17C a suitable long-term solution for facilities that have experienced premature failure of conventional brass-head pumps.

Ceramic Plungers, Seals, and Valves

• Ceramic plungers provide a hard, dimensionally stable surface for packing sets, minimizing wear at 2500 PSI under continuous stroking and elevated temperature conditions.
• Industrial-grade seals are specified for chemical and thermal stability, supporting operation with compatible hot water and aggressive cleaning agents.
• Stainless valve assemblies are designed to seat cleanly and repeatedly, maintaining volumetric efficiency and consistent pressure build across the pump’s operating range.
• Seal and valve kits are available for scheduled maintenance, allowing the wet end to be rebuilt rather than replaced when service intervals are reached.
• RKSS13.17C | Stainless Triplex Pump, 3.5 GPM 2500 PSI, 1450 RPM

Drive, Mounting, and 28 mm Hollow Shaft Interface of RKSS13.17C

• The 28 mm hollow shaft provides a versatile drive interface for equipment designers, supporting direct coupling to suitably sized engine or gearbox shafts.
• Hollow shaft architecture helps maintain concentric alignment and limits overall package length when integrated with compact drive arrangements.
• Pump speed of 1450 RPM is well suited to belt reductions from higher-speed prime movers or direct coupling to lower-speed drives where available.
• Mounting footprint and shaft elevation allow installation on stainless frames, epoxy-coated bases, or mobile skid structures in demanding plant environments.

Integration and System Layout Considerations

• Correct shaft engagement and keying are essential for secure torque transfer and reduced vibration in engine- or gearbox-driven configurations.
• Rigid mounting surfaces and appropriate fastener torque help stabilize the assembly, protecting bearings, seals, and drive components from misalignment.
• The compact pump-and-drive package simplifies enclosure design, splash guarding, and hose routing in confined equipment rooms or on mobile rigs.
• The stainless construction and slow-speed duty point support installation in exposed locations where frequent washdown and chemical contact are expected.

RKSS13.17C System Design, Inlet Conditions, and Fluid Handling

• Best performance is achieved when the pump is supplied from a properly sized, vented feed tank or pressurized line with minimal inlet restriction and adequate filtration.
• Inlet plumbing, including hoses, valves, and strainers, must support at least 3.5 GPM with low pressure drop to avoid cavitation, noise, and early seal wear.
• Downstream components—unloader, relief valve, hose assemblies, guns, and nozzles—must be rated for 2500 PSI or higher and compatible with the chemicals in use.
• Bypass and relief return lines should be configured to control water temperature during extended trigger-off periods, especially in hot-water or chemical recirculation systems.

Chemical and Temperature Management

• Only approved chemicals and temperatures within manufacturer limits should be used to protect seals, valves, and stainless components from premature degradation.
• Rinse-down and neutralization procedures should be part of normal operating routines in applications with aggressive caustics or oxidizers.
• Regular inspection of inlet strainers and chemical feed points helps prevent foreign material from entering the pump and damaging internal components.
• Documented procedures for chemical changeover, flushing, and shutdown support consistent performance and long pump life in multi-chemistry systems.

Service, Maintenance, and Reliability

• The RKSS13.17C pump is supplied with pre-filled break-in oil, reducing commissioning steps and protecting internal components during initial start-up.
• An integrated oil sight glass provides at-a-glance confirmation of oil level and condition as part of daily or pre-shift checks.
• The vented dipstick offers easy access for oil sampling and changes, supporting adherence to preventive maintenance schedules.
• Oversized bearings and a robust crank design support slow-speed, high-pressure operation when lubrication and inlet conditions are maintained within specification.

Preventive Maintenance and Rebuild Planning

• Routine inspections should include leak checks, oil level and clarity, drive alignment verification, and confirmation of stable working pressure under load.
• Seal and valve replacement intervals can be scheduled based on run hours, temperature exposure, and chemical loading to avoid unexpected downtime.
• Exploded diagrams and parts lists support accurate kit selection and efficient bench or in-place rebuilds by in-house maintenance teams or service contractors.
• With proper documentation and adherence to operating guidelines, the stainless head and drive assembly can serve as a long-life asset in critical washdown and process-cleaning systems.

Applications and Use Cases for RKSS13.17C

• Chemical wash stations and sanitation systems in processing plants handling caustic cleaners, disinfectants, and aggressive media.
• Marine facilities, shipyards, and saltwater-exposed structures where corrosion resistance and stainless construction are required.
• Food-grade and USDA washdown operations using foaming detergents, hot water, and frequent spray-down cycles on equipment and structures.
• Industrial descaling, duct cleaning, and plant maintenance where chemicals, temperature, and exposure would quickly damage conventional pumps.
• Transportation hubs, municipal vehicle wash rigs, and public works cleaning systems operating in harsh climates and chemically active environments.
• Fire department, utility, and public works washdown equipment where reliable stainless-head performance is required for long-term fleet support.