Rexroth PV7-1A/25-30RE01MC0-16 Variable Vane Pump R900580383

Rexroth PV7-1A/25-30RE01MC0-16 Hydraulic Vane Pump (Material No. R900580383)

The Bosch Rexroth PV7-1A/25-30RE01MC0-16 (Material Number / MPN: R900580383) is an industrial-grade, pilot-operated variable displacement vane pump engineered for open-circuit hydraulic networks requiring low noise, tight hysteresis, and high volumetric efficiency.

When the system reaches the preset cutoff threshold (zero-stroke), the internal spool shifts control fluid away from the large biasing piston, allowing the small counter-piston to pull the floating cam ring toward a near-concentric position. This instantly limits flow down to internal leakage replenishment, preventing thermal buildup in the oil reservoir and cutting continuous motor power draw.

Fitted with hydrodynamically lubricated sleeve bearings and axial compensation plates, this model is built for marine hydraulic power packs (HPUs), steering gears, offshore winch tensioners, and high-duty CNC machine tooling.

Technical Details

Features

1. Variable Stroke Pressure Compensation: Automatically destroke flow when target line pressure (up to 160 bar) is reached, virtually eliminating power dissipation and fluid heating during idle machine phases.
2. Integrated Through-Drive (“E” Shaft): Internal rear output spline allows direct tandem coupling with a second PV7 vane pump, an internal gear pump (PGH), or an external gear pump (AZPF) on a single drive motor.
3. Hydrodynamic Plain Bearings: Dual pressure-lubricated hydrodynamic journal bearings support the rotor to ensure smooth operational dampening, zero pulsation spikes, and an extended wear life.
4. Acoustically Optimized Cam Ring Setup: Features a specialized height-adjustment leveling screw that centralizes vane engagement, keeping running noise well under 65 dB(A).
5. Standard ISO 3019-2 Interface: Metric 100B4HW 4-bolt pilot flange and 25 mm keyed cylindrical drive shaft guarantee seamless drop-in field retrofits on IEC electric motors.

Direct Cross-References

• Rexroth Material Number (MNR): R900580383
• Series Cross-Designations: PV7-1X/25-30RE01MC0-16, PV7-1A/25-30RE01MC0-16
• Controller Assembly Code: V7-1A/…C0-16 BG (Spare Part MNR: R901169899)

Frequently Asked Questions

What does the model code PV7-1A/25-30RE01MC0-16 signify?

The designation breaks down as: PV7 = Variable displacement vane pump; 1A/1X = Series 1X; 25 = Frame size 25; 30 = 30 cm³/rev displacement; R = Clockwise rotation; E = Cylindrical keyed shaft with through-drive spline; 01 = BSPP pipe-threaded ports; M = NBR elastomer seals; C0 = Mechanical pressure controller; 16 = Maximum pressure limit up to 160 bar.

Can this pump operate in a counter-clockwise (anti-clockwise) rotation?

No. The PV7-1A/25-30RE01MC0-16 is strictly configured for clockwise (right-hand) rotation when looking directly at the drive shaft. Operating in reverse will prevent hydraulic suction, starve the vanes, and cause internal damage.

What is the minimum pressure setting for the C0 pressure compensator?

The standard adjustable zero-stroke range for this 160-bar rated frame is approximately 20 bar up to 160 bar. Attempting to regulate below 20 bar may result in unstable spool hunting and inconsistent displacement control.

Can I connect another hydraulic pump to the back of this unit?

Yes. Because this pump includes the “E” shaft option, the rear end cover accepts an auxiliary drive adaptor kit. You can bolt a second PV7 pump or a gear pump to run multiple independent hydraulic circuits off a single electric motor.

What happens when the system reaches peak zero-stroke pressure?

The internal pressure controller shunts oil to balance the internal stator ring, pushing flow down to zero output while holding the set pressure. Only a minimal amount of oil bypasses through the case drain to lubricate the bearings and remove residual heat.