HYD-XWL50.20NB-DD Hydraulic Pump13 GPM 3000 PSI

HYD-XWL50.20NB-DD Hydraulic Pump | 13 GPM 3000 PSI Brass

• HYD-XWL50.20NB-DD is a compact, belt-free hydraulic drive package that
  directly couples a low-speed, high-torque LSHT hydraulic motor to the
  Annovi Reverberi XWL50.20NB triplex plunger pump on a rigid,
  alignment-stable mounting plane.
• Delivers approximately 13 GPM at 3000 PSI near 1450 RPM in tight skids,
  service bodies, enclosed vans, and plant carts while keeping shaft centerlines true to
  protect bearings and seal packs.
• Direct-coupled geometry removes belts and bulky guards, shrinks footprint, lowers
  vibration, and reduces side-loading so the assembly runs smoother, cooler, and quieter
  over long duty cycles.
• NB brass head provides proven, cost-effective durability for everyday
  industrial cleaning, with a layout that anticipates real plumbing: short, direct suction,
  tidy pressure and bypass routing, and perimeter room for an unloader block without tight
  bends.
• Technicians retain clear access to the coupling, oil sight glass, vented dipstick, and
  fasteners so one person can complete routine PM with common tools.
• Built by Annovi Reverberi in Modena, Italy—leader in pump quality since
  1958—the water end ships pre-filled with oil to streamline commissioning and first
  service.

Hydraulic Motor & Circuit

• Uses a displacement-matched LSHT gerotor/geroler-type motor (brand may
  vary) selected to reach the target 1450 RPM under load with calm trigger cycling and
  stable pressure.
• Integrates cleanly into mobile or plant circuits via hydraulic pressure and return ports
  typically SAE-12 ORB (3/4 in), with an auxiliary case-drain port
  typically SAE-8 ORB (1/2 in) when the selected motor build requires it.
• Observe A/B port orientation for correct rotation, route any case drain above reservoir
  oil level to prevent aeration, size hose IDs generously, and respect bend radii to avoid
  restriction and heat.
• Protect the circuit with upstream reliefs appropriate to the 3000-PSI class,
  specify 10–25 μm return filtration with an adequate β-rating, and size
  the reservoir for heat rejection using the practical rule of
  2–3× total system flow.
• Add an oil cooler for hot climates, prolonged bypass, or continuous duty to keep hydraulic
  oil within temperature limits.

Pump Ports & Water-Side Plumbing

• HYD-XWL50.20NB-DD Typical XWL50-class ports are 1 in F-BSPP inlet and
  1/2 in F-BSPP discharge; adapters to NPT are readily available.
• Keep the suction run 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.
• Install an adjustable unloader and high-pressure relief sized for
  3000 PSI duty, plus a glycerin-filled gauge for commissioning and
  diagnostics.
• Include a thermal relief on the bypass loop to protect seals during extended
  gun-closed operation.
• Select nozzle orifices to hold the 13 GPM @ 3000 PSI working point
  without overspeeding the pump.

Integration Checklist & Sizing Formulas

• HYD-XWL50.20NB-DD Match motor displacement and available hydraulic flow to achieve about
  1450 RPM at the pump:
  • RPM ≈ 231 × hydraulic GPM ÷ motor displacement (in³)
• Quick power and torque checks:
  • Torque (lb-in) ≈ displacement (in³) × PSI ÷ 6.283
  • Hydraulic HP ≈ GPM × PSI ÷ 1714, then apply realistic efficiencies.
• Verify upstream relief settings, reservoir volume, cooling capacity, and return
  filtration before commissioning.
• Include the case drain if the motor build specifies it and route above tank oil level;
  keep inlet restrictions low and never run the pump dry.
• Schedule periodic torque checks on head, manifold, base, and coupling fasteners,
  especially after initial run-in.

HYD-XWL50.20NB-DD Hydraulic Pump | 13 GPM 3000 PSI Brass

Typical Applications

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

Ownership, Warranty & Key Highlights

HYD-XWL50.20NB-DD Hydraulic Pump | 13 GPM 3000 PSI Brass

• Manufacturer and origin: Annovi Reverberi, Modena, Italy—leader in pump
  quality since 1958.
• Pump model: XWL50.20NB brass head, engineered for everyday industrial
  cleaning with a balance of durability and value.
• Water performance: 13 GPM at 3000 PSI near 1450 RPM for high-impact
  single- or dual-gun washdown.
• Hydraulic motor: LSHT gerotor/geroler type, brand varies; ports typically
  SAE-12 ORB pressure/return with SAE-8 ORB case drain
  when required.
• HYD-XWL50.20NB-DD Package includes factory oil fill, sight glass, and vented dipstick; compact direct
  drive with no belt tensioning and predictable hose routing for repeatable OEM builds.
• Warranty: pump is backed by a 5-year limited, conditional warranty from
  Annovi Reverberi; proper hydraulic and water-side installation, correct filtration and
  lubrication, and operation within published limits are required for coverage, and
  seals/valves are considered consumables.