PV7-1X/25-30RE01MC0-16 Rexroth Variable Vane Pump 160bar

Model Number	PV7-15/25-30RE01MC0-16

Product Description

Product Overview

The PV7-1X/25-30RE01MC0-16 (Rexroth Order No. R900580383) is a pilot-operated pressure-controlled variable displacement vane pump from the Bosch Rexroth PV7 series, featuring Frame Size 25 with a geometric displacement of 30 cm³/rev. Engineered for open-circuit industrial hydraulic applications, this pump utilizes a cast iron housing with NBR seals and delivers stepless automatic displacement adjustment through its pilot-operated pressure controller — when system pressure reaches the setpoint, the pump automatically reduces flow to the minimum required to maintain pressure, dramatically cutting energy consumption and heat generation.

Manufactured to exact Rexroth specifications, this unit guarantees 100% drop-in interchangeability with the original equipment pump: the 4-bolt flange mounting conforms to ISO 3019-2 and VDMA 24560/1, the cylindrical drive shaft (Ø25 mm with key), and pipe thread port layout are dimensionally identical — zero modifications required for installation.

Every unit undergoes 100% simulated duty-cycle testing prior to shipment, including rated pressure run-in, peak pressure validation, variable control response characterization, volumetric efficiency calibration, noise level measurement, and seal integrity verification, ensuring all performance parameters meet or exceed OEM standards.

Technical Specifications

Model Code: PV7-1X/25-30RE01MC0-16
Rexroth Order Number: R900580383
Product Type: Pilot-operated pressure-controlled variable displacement vane pump
Product Series: Bosch Rexroth PV7 Series (PV7…C/D/N/W)
Component Series: 1X (Series 10–19, unchanged installation and connection dimensions)
Frame Size: 25
Geometric Displacement: 30 cm³/rev
Maximum Flow: 54 L/min (at 1,800 rpm)
Maximum Working Pressure: 160 bar
Zero-Stroke Pressure Setting Range (Code 16): Upper limit 160 bar
Control Type: Pressure Controller (C = Pressure Controller), pilot-operated
Control Characteristics: Low hysteresis, high repeatability accuracy, ultra-short start/stop response time (millisecond-level)
Drive Speed Range: 900–1,800 rpm
Direction of Rotation: R — Clockwise (viewed from shaft end)
Shaft End: E — Cylindrical, Ø25 mm with assembly key
Shaft Load Capacity: No radial or axial forces transmissible
Mounting Flange: 4-bolt flange 100 B4HW per ISO 3019-2 and VDMA 24560/1
Port Connections (Code 01): Pipe thread (for Frame Sizes 10/16/25)
Seal Material: M — NBR (Nitrile Butadiene Rubber)
Compatible Hydraulic Fluids: HLP, HLPD, HVLP, HVLPD (mineral-based); also compatible with HETG, HEES (environmentally acceptable fluids)
Mounting Position: Any position, horizontal preferred
Weight: 18.72 kg
Bearing Type: Hydrodynamic lubrication slide bearing
Housing Material: Cast iron

Key Technical Advantages

Pilot-Operated Pressure Control & Energy Savings

The pump employs a dual-piston pilot control system where the annular cam ring is mounted between floating pistons. Displacement is infinitely variable by adjusting the eccentricity between the cam ring and rotor. When system pressure reaches the setpoint, the pilot valve actuates and moves the cam ring toward the zero-displacement position, automatically reducing flow to the minimum needed to maintain system pressure and compensate for internal leakage. Compared to fixed-displacement pump solutions, no-load power consumption is reduced by 30%–50%, with significantly less heat generation — ideal for applications with long holding periods and fluctuating flow demands.

Ultra-Low Hysteresis & High Repeatability

The pilot-operated control architecture ensures near-instantaneous response between control signal and output, with minimal pressure fluctuation and repeatability accuracy better than ±1%. The extremely short start/stop response times (millisecond-level) make it ideal for frequent cycling and precision pressure control applications, and it can be paired with proportional valves for high-accuracy closed-loop pressure/flow control.

Hydrodynamic Lubrication Bearings & Extended Service Life

The pump features hydrodynamic lubrication slide bearings that maintain a complete oil film between bearing surfaces, preventing metal-to-metal contact and dramatically reducing wear rates. Compared to conventional rolling-element bearing designs, bearing service life is extended by a factor of 2–3×, with rated design life exceeding 10,000 operating hours under normal conditions — significantly reducing maintenance frequency and total cost of ownership.

Low Noise & Low Pulsation Operation

Specially designed vane profiles matched to the cam ring internal surface geometry reduce flow pulsation to industry-leading levels, with operating noise 3–5 dB(A) lower than equivalent displacement gear pumps. Noise levels can be further optimized via the height adjustment screw, making this pump particularly suitable for machine tools, precision machining equipment, and indoor environments where noise sensitivity is critical.

Flexible Multi-Pump Combination Capability

PV7 series standard single pumps can be flexibly combined with other pumps in the series, internal gear pumps (PGF/PGH), external gear pumps, and axial piston pumps via through-drive configuration to create multi-pump systems. This satisfies multi-circuit independent supply requirements while reducing component count and installation footprint.

Application Areas

Machine Tool Industry — CNC machining centers, grinders, milling machines, lathes for feed and clamping hydraulic circuits; variable displacement enables automatic rapid feed/working feed transition
Injection Molding & Die Casting — Multi-stage pressure/flow control for clamping, holding, and ejection cycles; automatic zero-stroke during idle periods for energy savings
Metallurgical Equipment — Mill screw-down systems, continuous caster vibration tables, hydraulic shears requiring precise pressure control under heavy loads
Industrial Automation — Hydraulic robot drives, precision positioning systems, conveyor equipment
Mobile Equipment Hydraulic Power Units — Auxiliary hydraulic circuits for compact excavators, cranes, forklifts
Marine & Offshore Engineering — Deck machinery, steering gear, hydraulic winches requiring constant-pressure variable supply
Environmental & Wastewater Treatment — Filter presses, sludge transfer systems requiring pressure-holding capability

Expert Maintenance Tips

Initial Startup & Air Bleeding: After installation or extended shutdown, loosen the pump body bleed screw and jog the motor until a continuous, bubble-free oil stream emerges, then retighten. Subsequently run no-load for 5–10 minutes until oil temperature reaches 30°C before gradually applying load. Never start under load.
Alignment Tolerance: Shaft alignment between the pump and driver (motor/engine) must be maintained within ≤ 0.1 mm concentricity deviation. Use a flexible coupling. Misalignment causes premature bearing and shaft seal failure and may catastrophically damage the pump cartridge.
Fluid Cleanliness Management: Maintain system fluid cleanliness at ISO 4406 18/15/13 or better. Install a 70–150μm suction strainer and a 10μm return-line filter. Monitor contamination levels regularly; in harsh environments, reduce hydraulic fluid change intervals to 1,000 hours.
Temperature & Viscosity Control: Recommended operating oil temperature: 20–55°C; viscosity range: 17–37 mm²/s (cSt). Sustained oil temperatures above 60°C will drastically shorten pump life. Excessive viscosity causes suction difficulties; insufficient viscosity increases internal leakage.
Controller Calibration: Every 2,000 operating hours, verify that the pressure controller setpoint has not drifted. Recalibrate zero-stroke pressure and maximum flow via the adjustment screws. If response becomes sluggish or pressure fluctuation increases, inspect the pilot spool for sticking and check spring fatigue.
Cam Ring Wear Monitoring: The suction zone of the cam ring internal surface is the primary wear area. If pump flow drops more than 10% below rated value or noise increases noticeably, disassemble and inspect cam ring and vane wear. The cam ring can be flipped to expose a fresh surface, converting the original suction zone into a discharge zone to extend service life.