HYD-XWL50.20HNB-DD Hydraulic Pump | 13 GPM 3000 PSI Nickel

HYD-XWL50.20HNB-DD Hydraulic Pump | 13 GPM 3000 PSI Nickel

• HYD-XWL50.20HNB-DD is a compact, belt-free hydraulic drive package that
  directly couples a low-speed/high-torque (LSHT, gerotor/geroler-type) hydraulic motor
  to the Annovi Reverberi XWL50.20HNB triplex plunger pump on a rigid,
  alignment-stable mounting plane.
• Delivers approximately 13 GPM at 3000 PSI (≈50 L/min at ≈207 bar) near
  1450 RPM while keeping shaft centerlines true to protect bearings and seal packs.
• Built by Annovi Reverberi—pump manufacturer and global leader in high-pressure
  pump quality since 1958, with pumps engineered and made in Modena, Italy.
• XWL50.20HNB water end features a nickel-plated brass head for elevated
  corrosion resistance in hot, wet, or chemically aggressive wash-down environments.
• Coaxial motor and pump on the same rigid base run smoother and quieter than belt systems,
  avoid retensioning and belt dust, and preserve open access to coupling, oil sight glass,
  vented dipstick, and fasteners for single-tech preventive maintenance.

HYD-XWL50.20HNB-DD Hydraulic Motor & Ports

• Uses an LSHT hydraulic motor (brand varies by build); displacement is
  selected to reach ≈1450 RPM under load at target pressure/flow for calm trigger cycling
  and stable pressure.
• Typical hydraulic ports: SAE-12 ORB (3/4 in) pressure and return; most LSHT
  builds add an auxiliary SAE-8 ORB (1/2 in) case drain.
• Observe A/B port orientation for correct rotation, route the case drain above reservoir
  oil level to prevent aeration, size hose IDs generously, and respect bend radii to avoid
  restriction and heat.

Pump Ports & Water Performance

• HYD-XWL50.20HNB-DD XWL50-class manifolds are commonly 1 in. F-BSPP inlet and
  1/2 in. F-BSPP discharge; adapters to NPT are readily available
  (verify exact ports on the selected build).
• Keep suction plumbing short, straight, and oversize from a flooded feed; use anti-collapse
  suction hose and a coarse inlet strainer to preserve volumetric efficiency and prevent
  cavitation.
• Duty point of 13 GPM @ 3000 PSI @ 1450 RPM suits high-impact cleaning,
  multi-nozzle bars, and single- or dual-gun washdown.
• Select nozzle orifices to hit the required working pressure and flow without over-speeding
  the pump.

HYD-XWL50.20HNB-DD Direct-Drive Advantages

• Compact footprint with no belts, pulleys, or belt dust and reduced
  guard bulk—ideal for skids, service bodies, vans, and plant carts.
• Precise motor-to-pump centerline reduces side loading and vibration, helping extend
  bearing and seal life.
• Predictable geometry leaves perimeter room for an unloader block, pressure gauge,
  and tidy pressure/bypass sweeps.
• Open access to coupling, sight glass, dipstick, and frame fasteners speeds
  single-technician service.

Installation & Integration Checklist

• Match motor displacement to the pump’s rated speed under load:
  RPM ≈ 231 × hydraulic GPM ÷ motor displacement (in³).
• Verify torque and power with:
  • Torque (lb-in) ≈ displacement (in³) × PSI ÷ 6.283
  • HP ≈ GPM × PSI ÷ 1714, then apply realistic efficiencies.
• Confirm upstream hydraulic relief settings for the 3000-PSI duty class.
• Specify 10–25 μm return filtration with an adequate β-rating and size
  the reservoir for heat rejection (practical rule: 2–3× total system flow).
• Add an oil cooler for hot climates, prolonged bypass, or continuous duty cycles.
• Include a case drain if the motor build requires it and route above tank oil level.
• HYD-XWL50.20HNB-DD Add a correctly sized high-pressure relief and a glycerin-filled gauge for commissioning,
  plus a thermal relief on the bypass loop for extended gun-closed operation.

Ownership & Warranty

• Pump manufactured by Annovi Reverberi; units ship with crankcase oil
  installed and include a vented dipstick and sight glass for quick pre-start checks.
• Follow AR-recommended lubricant grades and service intervals, maintain inlet screening,
  and keep the shaft/seal area clean during service.
• Pump is covered by a 5-year limited, conditional warranty—proper hydraulic
  and water installation, correct filtration and lubrication, and operation within published
  limits are required for coverage; seals and valves are normal wear items.

Typical Applications

• Mobile wash skids and service-truck bodies for fleet and heavy-equipment cleaning.
• Municipal/DOT fleets and sanitation rigs for street, curb, and facility wash-down.
• Equipment-yard rinse stations and rental turn-backs that need repeatable, high-impact
  cleaning.
• Food & beverage and general plant maintenance (observe local hygienic standards).
• Marine, tug-boat, and dock washdown; agriculture and ranch equipment wash;
  conveyor and parts-cleaning cells.
• Contractor rigs and mobile systems that already carry hydraulic power and need
  a compact, alignment-stable pressure-wash package.

HYD-XWL50.20HNB-DD Included & Expected Components

• Direct-drive hydraulic motor + XWL50.20HNB pump on a rigid shared base
  with coupling, guard standoffs, and mounting hardware.
• Service-friendly layout with predictable hose routing for suction, pressure, and bypass.
• Guidance above for motor displacement selection, hydraulic porting, and plumbing so OEMs
  and fleet shops can build repeatable, professional hydraulic pressure-wash packages.