RKSS15.15N | 4 GPM 3000 PSI Triplex Pump, 1450 RPM, SS 24mm

RKSS15.15N — 4.0 GPM 2200 PSI AISI 316 Stainless Triplex Pump

• The RKSS15.15N is a rugged AISI 316 stainless steel triplex plunger pump built for industrial and commercial washdown in caustic, hot-water, and chemically aggressive environments where standard brass pumps are not suitable.
• Delivering 4.0 GPM at 2200 PSI at 1750 RPM, it provides a compact but powerful duty point ideal for sanitary washdown, process-area cleaning, and surface prep where controlled pressure and corrosion resistance are critical.
• The stainless head, ceramic plungers, dual high-pressure seals, and industrial-grade bearings are engineered for continuous-duty operation with compatible detergents, caustics, and elevated temperatures.
• A 24 mm solid shaft allows flexible integration into belt-drive, gearbox, or direct-coupled systems, supporting both OEM builds and retrofit projects in demanding facilities.

Performance and Operating Envelope

• Rated 4.0 GPM at 2200 PSI, the RKSS15.15N delivers enough hydraulic energy for aggressive washdown while remaining manageable for operators working near sensitive equipment and structures.
• 1750 RPM slow-speed operation supports reduced mechanical stress, lower pump temperatures, and quieter running compared with high-speed direct-drive units.
• The flow and pressure combination is well suited to single-gun or carefully designed dual-gun systems using properly sized nozzles, hose sets, and accessories in the 4 GPM class.
• With appropriate system safeguards, the pump provides stable output for extended run times in shift-based production environments.

RKSS15.15N Flow, Pressure, and Application Window

• 4.0 GPM supports efficient rinsing of equipment, tanks exteriors, process lines, and structural surfaces where frequent washdowns are part of daily operations.
• 2200 PSI working pressure offers strong cleaning force for food residues, oils, coatings, and scale when combined with the correct nozzle orifice and cleaning chemistry.
• The operating window is appropriate for washdown where over-aggressive pressure would risk damage to instrumentation, seals, or painted surfaces.
• The pump can be integrated into hot-water systems within manufacturer temperature limits when matched with suitable seals and compatible accessories.

Stainless Construction and Chemical Resistance

• RKSS15.15N AISI 316 stainless steel head provides excellent resistance to chlorides, caustic cleaners, sanitizers, and aggressive atmospheres that rapidly attack brass-head pumps.
• Stainless construction supports long service life in applications such as chemical plants, food processing, pharmaceutical production, and marine or coastal facilities.
• Wetted passages are designed to withstand frequent exposure to detergents and cleaning agents used in CIP-style washdown routines.
• Stainless hardware and fasteners help maintain structural integrity and serviceability in high-moisture, high-spray zones.

RKSS15.15N Ceramic Plungers, Dual Seals, and Valve Sets

• High-strength ceramic plungers provide a hard, stable surface for packing sets, limiting wear under continuous high-pressure cycling and elevated water temperatures.
• Dual high-pressure seals are specified for caustic and hot-water applications, improving sealing reliability where single-pack designs may struggle.
• Stainless check valves are designed for clean seating and consistent flow control, maintaining volumetric efficiency across the pump’s pressure range.
• Seal and valve groups are serviceable with standard kits, allowing the hydraulic section to be rebuilt on schedule rather than replaced.

Drive, Mounting, and System Integration

• The 24 mm solid shaft is suitable for belt-drive configurations, allowing designers to match pump speed precisely to motor or engine ratings.
• Pump speed of 1750 RPM aligns well with 4-pole electric motors in direct-drive or reduction layouts, simplifying design of electric washdown systems.
• Mounting footprint supports installation on stainless skids, epoxy-coated frames, or wall-mounted assemblies inside washdown-rated enclosures.
• Integration flexibility makes the RKSS15.15N a strong choice for OEMs standardizing on a stainless-head platform across multiple system sizes.

System Design and Fluid Handling Practices

• Best performance is achieved when the pump is supplied from a properly sized, vented feed tank with adequate filtration and minimum inlet restriction.
• All inlet plumbing—valves, hoses, and strainers—should be sized to support at least 4.0 GPM with low pressure drop to prevent cavitation and seal damage.
• Downstream components including unloader, relief valve, hose, lance, and nozzle must be rated for 2200 PSI or higher and compatible with the cleaning agents in use.
• Thoughtful bypass routing and temperature management are important where guns are frequently closed or automated valves cycle on and off during production.

Service, Maintenance, and Reliability

• The pump RKSS15.15N is shipped with factory pre-filled break-in oil, reducing start-up steps and helping protect internal components during initial commissioning.
• An integrated oil sight glass provides at-a-glance confirmation of oil level and basic condition, supporting quick daily checks in busy facilities.
• Vented dipstick access allows straightforward oil sampling and changes as part of a preventive maintenance schedule.
• Oversized bearings, robust crank components, and slow-speed operation all contribute to long-term reliability when lubrication and inlet conditions are maintained.

Preventive Maintenance and Rebuild Planning

• Routine inspections should include oil level and clarity, leak checks, drive-belt tension (if used), and verification of stable operating pressure at the gun.
• Seal and valve kit replacement can be planned based on run hours, chemical exposure, and duty cycles, minimizing unexpected downtime in critical wash areas.
• Exploded views and parts lists support accurate kit selection and efficient bench or in-place rebuilds.
• With proper records and adherence to manufacturer guidelines, the stainless head and drive components can serve as long-term assets within plant-wide cleaning strategies.

RKSS15.15N Applications and Use Cases

• Chemical washdown in processing plants that operate with caustic cleaners, disinfectants, and aggressive atmospheres.
• Pharmaceutical and sterile facility sanitation where corrosion resistance, cleanable surfaces, and controlled pressure are required.
• Paint stripping, coating removal, and surface prep systems where solvents and aggressive wash media are part of the process.
• Food processing plants and USDA-compliant washdowns for equipment, walls, floors, and structural elements.
• Restaurant hood, duct, and kitchen cleaning rigs working with hot water and heavy degreasing chemistry.
• HVAC coil cleaning, piping and equipment flushing, and general industrial washdown where stainless construction extends life beyond standard brass-head pumps.