HYD-RTX70-DD Hydraulic Motor Pump | 18.5 GPM 2900 PSI

Overview

• HYD-RTX70-DD is a compact, belt-free hydraulic drive package that directly couples a
  low-speed/high-torque (LSHT) hydraulic motor to an Annovi Reverberi RTX70 high-pressure
  triplex plunger pump on a rigid, alignment-stable base.
• Delivers dependable cleaning power while keeping shaft centerlines true to protect bearings and seal packs.
• Built in Modena, Italy by Annovi Reverberi—pump quality leader since 1958.
• This build is targeted for approximately 18.5 GPM (≈70 L/min) at 2900 PSI (≈200 bar) in the
  1000–1450 RPM operating window.
• Ideal for single- or dual-gun washdown and process rinse without belt dust, guard bulk, or alignment drift.
• Ships installer-friendly with clear access to the coupling, easy-view oil sight glass, and a
  vented dipstick; pump is pre-filled with oil for quick pre-start checks.

HYD-RTX70-DD Hydraulic Motor & Circuit

• Uses a displacement-matched LSHT gerotor/geroler-type hydraulic motor (brand varies) sized
  to reach rated pump speed and torque at pressure.
• Interfaces with standard mobile or plant circuits via pressure and return ports typically
  SAE-12 (3/4″ ORB), with an auxiliary case-drain port typically
  SAE-8 (1/2″ ORB) when required by the chosen motor build.
• Observe A/B port orientation for correct rotation; route the case drain above reservoir oil level to prevent
  aeration.
• Size hoses generously and respect bend radii to avoid restriction and heat build-up.
• Protect the circuit with upstream relief valves suitable for 200-bar service and specify
  10–25 μm return filtration with an adequate β-rating.
• Size the hydraulic reservoir for heat rejection (practical rule: 2–3× total system flow) and
  add an oil cooler for hot climates, prolonged bypass, or continuous-duty cycles.

HYD-RTX70-DD Pump Ports & Water-Side Plumbing

• RTX70 manifolds are typically 1-1/4″ female BSPP inlet and
  1/2″ female BSPP discharge; adapters to NPT are readily available.
• Keep the suction run short, straight, and oversize from a flooded supply.
• Include a coarse inlet strainer and use anti-collapse suction hose to preserve volumetric efficiency and
  minimize cavitation.
• Use an adjustable unloader matched to RTX70 duty to hold working pressure while safely
  bypassing flow to tank.
• Add a high-pressure relief valve and a glycerin-filled pressure gauge for
  commissioning and diagnostics.
• Include a thermal relief valve on the bypass loop to protect seals during extended
  gun-closed or bypass operation.

Integration Checklist

• Match motor displacement and available hydraulic flow to achieve the required pump RPM at
  ≈2900 PSI.
• Verify upstream relief settings and confirm return filtration, reservoir volume, and cooling capacity for
  the duty cycle.
• Provide a case drain if specified by the motor manufacturer and route it above tank oil level.
• Select nozzle orifices for the desired 18.5 GPM @ 2900 PSI working point and never
  overspeed the pump.
• Plan a low-pressure recirculation path for prolonged bypass to control heat.
• Schedule periodic torque checks on head, manifold, base, and coupling fasteners to preserve alignment and
  seal life.

Why Direct Drive

• Smooth torque transfer for stable pressure and calm trigger cycling.
• Compact footprint with predictable hose routing for repeatable OEM builds.
• Alignment-stable geometry reduces bearing side-load and extends seal life.
• No belt tensioning, no belt dust, and less guard bulk for cleaner installs.
• Open access to coupling, sight glass, dipstick, and fasteners for fast single-tech PM.

HYD-RTX70-DD Typical Applications

• Tug-boat and dock washdown, aquaculture pens, and marina sanitation.
• Municipal fleets, sanitation/public-works rigs, and jetter/vac-truck support.
• Food & beverage plants and packaging rooms (observe local hygienic standards).
• Agriculture and ranch equipment wash and fertilizer/barn cleanup.
• Conveyor systems, parts-cleaning cells, and general plant maintenance carts.
• Work-truck skids, enclosed van bodies, rental fleets, and contractor rigs with onboard hydraulic power.

HYD-RTX70-DD Ownership, Warranty & Key Details

• Manufacturer & origin: Annovi Reverberi, Modena, Italy—leader in high-pressure
  pump quality since 1958.
• Water performance: ≈18.5 GPM (≈70 L/min) @ ≈2900 PSI (≈200 bar) in the 1000–1450 RPM band.
• Hydraulic motor: LSHT gerotor/geroler type; hydraulic ports typically SAE-12 ORB
  pressure/return with SAE-8 ORB case drain (verify on selected motor).
• Pump ports: 1-1/4″ F-BSPP inlet and 1/2″ F-BSPP outlet; adapt to NPT as needed.
• Included with pump: factory oil fill, sight glass, and vented dipstick for quick
  commissioning.
• Warranty: 5-year limited, conditional warranty—proper installation (hydraulic and water),
  filtration, lubrication, and operation within published limits are required; seals and valves are treated
  as consumable wear items.
• Benefits: compact direct drive, smooth pressure response, predictable hose routing, and
  fast single-tech service for demanding industrial cleaning systems.