HYD-RKSS1515N | Hydraulic Drive Triplex Pump Kit, 3.96 GPM 3000 PSI

HYD-RKSS1515N | Hydraulic Drive Triplex Pump Kit | 3.96 GPM 3000 PSI | Stainless

HYD-RKSS1515N is the corrosion endgame in the compact class: Annovi Reverberi’s stainless-steel RK build — 3.96 GPM (15 L/min) at up to 3000 PSI at 1450 RPM — in the N-version solid-shaft configuration for coupled drives. Head materials are a ladder of chemical tolerance: brass serves ordinary water, nickel plating armors against the degreasers and reclaim water of pressure-led work, and stainless steel stands where the other two eventually surrender — salt air and seawater, sanitizing chemistry on daily cycles, low-pH washes, and process environments that treat pump heads as consumables. The HYD-RKSS1515N is built for exactly those addresses, with full commercial washing performance underneath the metallurgy.

The trades that specify stainless know why. Marine washdown lives in salt spray that pits brass in seasons; food and beverage sanitation runs chlorinated and caustic chemistry through the pump every single day; agricultural and chemical-plant washdown carries dissolved aggressors ordinary specs never budget for. In each, the pump’s wetted path is the first casualty of the environment — unless the wetted path is stainless, in which case the HYD-RKSS1515N treats the environment as just another duty cycle.

HYD-RKSS1515N Specifications

• SKU: HYD-RKSS1515N
• Configuration: Solid-shaft compact pump — N version, for coupled or belt drive
• Pump: Annovi Reverberi RK-series stainless-steel build (RKSS)
• Flow Rate: 3.96 GPM (15 L/min)
• Maximum Discharge Pressure: 3000 PSI (207 bar)
• Rated Speed: 1450 RPM — never overspeed
• Power Requirement: Approximately 8.5 HP at full duty
• Head and Wetted Path: Stainless steel with stainless valves
• Plungers: One-piece ceramic
• Maximum Fluid Temperature: 140°F
• Shaft: Solid (N version) — coupling interface confirmed at order

How Much Hydraulic Flow and Pressure Do I Need?

Full duty asks roughly 10 hydraulic horsepower delivered continuously — and here is that number the way your machine’s spec sheet states it: oil GPM × oil PSI ÷ 1,714 must reach about 10. Circuits that qualify: 7 GPM at 2,500 PSI, 6 GPM at 3,000 PSI, or 9 GPM at 2,000 PSI — which is to say nearly every skid steer auxiliary, tractor remote, and truck circuit in the field; this is the friendly end of the supply spectrum. Even a modest 4 GPM at 3,000 PSI circuit (~7 HP) falls just short of full duty, so verify against the formula rather than assuming. The solid shaft of the HYD-RKSS1515N then takes the drive through a flex coupling to a compact hydraulic motor — the HYDM160M and HYDM180M classes suit the torque — an electric motor on a common base, or a belt layout where offset demands it. Relieve within the motor’s rating, filter returns at 10–25 microns, and call WSHPWR with your circuit’s numbers — we will confirm the match, and the motor, before you order.

Why Stainless Is the Endgame

Corrosion in a triplex is a valve-seat disease: the sealing surfaces pit first, pressure follows them down, and the rebuild arrives years ahead of the mechanical schedule. Chemistry drives the clock — chlorides from salt or sanitizer attack brass aggressively, and even nickel plating is a barrier with a lifespan under daily chemical cycles. Solid stainless removes the clock entirely: the HYD-RKSS1515N’s wetted path is the same metallurgy the food and marine industries use for the surfaces they cannot afford to lose, so seal and valve service follows hours and duty, not the environment’s appetite. Over a coastal or sanitation career, the stainless premium repays itself in the rebuilds that never happen.

The Solid-Shaft Compact

The N-version shaft keeps the drive question open on the smallest frame in the stainless family: a compact hydraulic motor through an off-the-shelf coupler, an electric motor on a common base for fixed sanitation stations, or a belt drive where the installation lays out sideways. Pump and motor separate for independent service — and in washdown environments where equipment gets hosed along with everything else, a drive that dismounts without disturbing the plumbing earns its keep at every service interval.

Installation & Operation Notes

Mount the HYD-RKSS1515N horizontally, fit and align the coupling to specification, guard the drive, and verify rotation at commissioning. Feed the inlet from a flooded, filtered supply — stainless protects against chemistry, not cavitation. Fit an unloader set against working pressure with relief protection, size the nozzle to 3.96 GPM at your target pressure, hold 1450 RPM as the ceiling, rinse the system with fresh water after each chemical or saltwater session as good practice even with stainless, and winterize before cold-weather storage.

Quality Assurance & Maintenance

Every HYD-RKSS1515N ships factory-tested for flow rate, pressure stability, and vibration. Maintenance follows the standard AR compact routine — crankcase oil changes, seal inspection, periodic valve checks with AR repair kits — with the stainless wetted path removing environmental corrosion from the failure list entirely: what remains is honest mechanical wear on the schedule the hours dictate.

HYD-RKSS1515N Key Features & Applications

• 3.96 GPM at 3000 PSI, 1450 RPM — full commercial washing in the stainless-steel RK build.
• Stainless wetted path: the corrosion endgame for salt, sanitizers, and low-pH chemistry.
• Needs only ~10 hydraulic HP — nearly every auxiliary circuit in the field qualifies.
• Solid shaft (N version): compact hydraulic motors, common-base electric, or belt drive through stock couplers.
• Removes environmental corrosion from the failure list — service follows hours, not chemistry.
• Ideal for marine and dockside washdown, food and beverage sanitation stations, agricultural and chemical-plant duty, reclaim-water systems, and coastal fleets tired of replacing brass.