XWL50.20HNB-DD | 13 GPM 3000 PSI Direct Drive Nickel Plated Head

XWL50.20HNB-DD | Direct Drive Hydraulic Pump | 13.2 GPM 2900 PSI | Top of the XWL Line

XWL50.20HNB-DD is the summit of Annovi Reverberi’s XWL hydraulic family — the 194-series frame carrying its maximum duty: 13.2 GPM (50 L/min) at up to 2900 PSI (200 bar) at 1450 RPM, AR-published 25 HP rating, nickel-plated brass head, and a 13-tooth splined direct-drive interface, all at roughly 36 pounds. The XWL ladder climbs deliberately — the 50.09 delivers this same flow at gentle 1300 PSI rinse duty, the 41-class adds hot-water and sanitation builds in the 11 GPM tier — and the XWL50.20HNB-DD tops it with full flow and full pressure together, in the corrosion-armored head.

That position makes it the one-pump answer for mixed chemical-environment duty. Fleet operations running detergent programs need rinse volume some days and stripping authority others; marine and dock work adds salt to both; agricultural and softwash support rigs cycle chemistry through the head daily. The XWL50.20HNB-DD covers the whole span from a frame light enough for slide-in skids and weight-rated truck shelves — the workload of a 72-pound RTX-class pump, carried at half the mass.

XWL50.20HNB-DD Specifications

• SKU: XWL50.20HNB-DD
• Configuration: Direct-drive hydraulic pump — 13T splined interface (F62-class, SAE J498 B)
• Pump: Annovi Reverberi XWL 50.20 (194-series frame), nickel-plated brass head
• Flow Rate: 13.2 GPM (50 L/min)
• Maximum Discharge Pressure: 2900 PSI (200 bar)
• Rated Speed: 1450 RPM — never overspeed
• Power Requirement: 25 HP (18.7 kW) at full duty, per AR’s published rating
• Inlet Port: 3/4″ F
• Discharge Port: 3/8″ F
• Maximum Fluid Temperature: 140°F
• Head Material: Nickel-plated brass with stainless-steel wet-end components
• Plungers: One-piece ceramic
• Weight: Approximately 36 lbs (16.5 kg)

The XWL Ladder, and Where This Rung Sits

Choosing inside the family is a duty question. Surface-safe rinse work over wraps, produce, and painted fleets belongs to the HYD-XWL50.09 at 1300 PSI. Hot-water sanitation with stainless wetted parts belongs to the HYD-WHWLSS4115. The XWL50.20HNB-DD exists for everything that outgrows both: equipment that needs the caked material cut, not soaked; jetting and washdown that runs at real working pressure all shift; and any of it in water or chemistry that attacks bare brass. Same frame series across the family, same service philosophy, one parts discipline — the ladder lets a fleet standardize on XWL and still match every duty precisely. WSHPWR stocks all three rungs and will place your workload on the right one in a single call.

Hydraulic Supply Requirements

Annovi Reverberi’s published pairing for the XWL 50.20 platform is a gear 44cc motor drawing 71 L/min (18.8 GPM) of oil at 195 bar (2,828 PSI) — roughly 31 hydraulic horsepower delivered continuously. That wants a strong truck hydraulic system, a high-flow machine circuit, or a dedicated power unit; standard compact auxiliaries will run the XWL50.20HNB-DD at reduced output. For alternative motors, size displacement to reach 1450 RPM via RPM ≈ 231 × hydraulic GPM ÷ displacement (in³), verify torque at working pressure, relieve within the motor’s rating, and provide return filtration and oil cooling for continuous duty. Call WSHPWR with your circuit’s flow and pressure and we will confirm the pairing before you order.

Nickel Against the Daily Chemistry

Detergents, sanitizer cycles, salt air, and reclaimed water all find brass eventually — pitting and de-zincifying valve seats until pressure fades and the parts bill arrives. The nickel plating on the XWL50.20HNB-DD lays a hard, chemically resistant barrier over every wetted surface, built for exactly the duty its buyers run: soap injected daily, softwash mix in the lines, dock water in the supply. If chemistry ever touches the system, the NB head is insurance bought once and never thought about again.

Direct-Drive Architecture

The 13-tooth splined interface couples pump and hydraulic motor on one centerline — no belts, pulleys, guards, or field alignment, minimal side loading on bearings and seal packs, and output independent of host engine speed. Motor and pump separate independently at the interface when service calls, and the 36-pound frame keeps one-technician handling and tight-cabinet installs realistic.

Installation & Operation Notes

Confirm the spline and mounting interface against your motor before ordering. Mount horizontally, verify rotation at commissioning, and engineer the suction seriously: 13.2 GPM through the 3/4″ inlet demands flooded, filtered, unrestricted plumbing — buffer-tank feed is standard practice at this flow. Fit an unloader against working pressure plus appropriate relief protection, size nozzles to the 13.2 GPM duty point, flush with clean water after chemical sessions to maximize head life, hold 1450 RPM as the ceiling, and winterize before cold-weather storage.

Quality Assurance & Maintenance

Every XWL50.20HNB-DD ships factory-tested for flow rate, pressure stability, and vibration. Maintenance follows AR’s standard schedule — crankcase oil changes, seal inspection, periodic valve checks with AR repair kits shared across the XWL family — with the nickel head stretching valve-seat intervals in the chemical duty this pump was specified for.

XWL50.20HNB-DD Key Features & Applications

• 13.2 GPM at 2900 PSI, 1450 RPM — the maximum duty of the XWL hydraulic family, at 36 pounds.
• Nickel-plated brass head armors the wet end against detergents, salt, and reclaimed water.
• Published pairing: gear 44cc at 18.8 GPM / 2,828 PSI oil (~31 hydraulic HP).
• 13T splined direct drive — no belts, couplers, or alignment; independent motor/pump service.
• Tops the XWL ladder above the 50.09 rinse and 41-class sanitation rungs — one family, every duty.
• Ideal for fleet detergent programs, marine and dock washdown, softwash support rigs, agricultural chemical environments, and weight-limited skids needing full flow and pressure.