HYD-RTX85-DD Hydraulic Motor Pump | 22.5 GPM 3000 PSI

HYD-RTX85-DD | Direct Drive Hydraulic Pump | 22.5 GPM 2200 PSI | 13T Spline

HYD-RTX85-DD is the maximum-flow pump of Annovi Reverberi’s compact direct-drive line — the RTX 85.150 platform, rated at 22.5 GPM (85 L/min) and up to 2200 PSI (150 bar) at 1450 RPM, with a hollow 13-tooth splined shaft that mounts straight onto the SAE B hydraulic motor your system specifies. No other pump in the 366-series frame moves this much water: for engineered systems that need RTD-class rinse volume without the mass, footprint, and power appetite of a 1000 RPM industrial frame, this is the wet end the design converges on.

Builders reach for it where flow is the deliverable: hydrovac support systems rinsing continuously, aggregate and concrete plant washdown circuits, high-throughput wash installations, dust suppression networks feeding multiple bars, and OEM machines whose specification reads “maximum water, compact package, our motor.” At roughly 72 pounds, the HYD-RTX85-DD delivers all of it at half the weight of the industrial alternatives.

HYD-RTX85-DD Specifications

• SKU: HYD-RTX85-DD
• Configuration: Direct-drive hydraulic pump — hollow 13T splined shaft mounts directly onto an SAE B hydraulic motor
• Pump: Annovi Reverberi RTX 85.150 (366-series frame)
• Flow Rate: 22.5 GPM (85 L/min)
• Maximum Discharge Pressure: 2200 PSI (150 bar)
• Rated Speed: 1450 RPM — never overspeed
• Power Requirement: 32 HP (23.9 kW) at full duty, per AR’s published rating
• Drive Interface: Hollow 13-tooth splined shaft, F56-class close-couple flange (SAE J498 B101)
• Inlet Ports (2): 1″ F
• Discharge Ports (2): 1/2″ F
• Maximum Fluid Temperature: 140°F
• Plungers: Ceramic
• Weight: Approximately 72 lbs (32.5 kg)

Four Published Motor Pairings

Annovi Reverberi publishes four factory motor pairings for this platform, covering nearly the full range of engineered hydraulic systems. Flow-rich circuits: the gear 90cc motor on 142 L/min (37.5 GPM) of oil at 124 bar (1,798 PSI). Balanced systems: the piston 64cc on 102 L/min (26.9 GPM) at 173 bar (2,509 PSI). Flow-tight, pressure-rich circuits: the gear 44cc on 71 L/min (18.8 GPM) at 249 bar (3,611 PSI), or the piston 34cc on just 55 L/min (14.5 GPM) at 321 bar (4,656 PSI). Budget roughly 39–44 hydraulic horsepower continuously whichever pairing fits — engineered-system territory, with reservoir, return filtration, and cooling designed for all-shift duty. Off-list motors follow the rule: RPM ≈ 231 × hydraulic GPM ÷ displacement (in³) to reach 1450 RPM, torque verified at working pressure, relief capped at the motor’s rating. Call WSHPWR with your circuit’s numbers and we will name the pairing.

Maximum Flow, HYD-RTX85-DD Compact Discipline

Moving 22.5 GPM through a 72-pound pump concentrates the engineering where installers can see it: the suction path. This platform demands flooded, filtered supply through both full-size 1″ inlets — at maximum family flow, even modest restriction cavitates, and cavitation is the one failure mode no build quality survives. Get the inlet right and the rest of the discipline is ordinary: nozzles and spray bars sized to the full flow so the unloader stays out of bypass, downstream hardware rated with margin, cooling on the hydraulic side sized for hours. Systems built to those rules run the published numbers shift after shift.

Direct-Drive Architecture

The hollow 13T spline engages a male-splined SAE B motor at the F56 flange — no coupler, no belt, no field alignment, no guard. One centerline keeps side load off bearings and seal packs, the package stays tight for decks and skids, and motor or pump dismounts independently at the flange when service requires.

Installation & Operation Notes

Confirm the spline before ordering — 13T SAE B; 14T SAE C hardware from RTD-class systems will not engage. Mount horizontally, verify rotation at commissioning, and honor the suction rules above without exception. Fit an unloader plus safety relief for the working pressure, size orifices to the 22.5 GPM duty point, hold 1450 RPM as the ceiling, and winterize thoroughly — high-flow pumps hold the most trapped water in the family and freeze damage scales with it.

Quality Assurance & Maintenance

Every HYD-RTX85-DD ships factory-tested for flow rate, pressure stability, and vibration. Service runs the shared RTX schedule — crankcase oil changes, seal inspection, in-place valve checks with common AR repair kits — and the moderate 150-bar duty point keeps seal and valve wear gentle even at maximum flow.

HYD-RTX85-DD Key Features & Applications

• 22.5 GPM at 2200 PSI (150 bar), 1450 RPM — the maximum-flow pump of AR’s compact direct-drive line.
• Four AR-published motor pairings, from 14.5 to 37.5 GPM of oil — nearly any engineered circuit matches one.
• Hollow 13T splined shaft direct-drives from an SAE B hydraulic motor — no coupler or alignment.
• Approximately 39–44 hydraulic HP at full duty on a ~72 lb frame — RTD-class volume at half the mass.
• Ceramic plungers and in-place valve service on the shared RTX parts platform.
• Ideal for hydrovac support systems, plant washdown circuits, high-throughput wash installations, multi-bar dust suppression, and max-flow OEM builds.