Product Overview
The PVH131R13AF70B252000000100100010A and PVH131R13AF30E2520080010C1AE010A are core models in Eaton Vickers’ PVH series of open-circuit variable displacement piston pumps, belonging to the medium-duty high-pressure industrial piston pump platform. The PVH series covers displacements from 57 to 141 cc/rev, with rated operating pressure up to 250 bar (3625 psi) and peak pressure up to 280 bar (4060 psi), suitable for machine tools, plastics machinery, construction equipment, and other medium-duty hydraulic applications.
Both PVH131 models feature a displacement of 131.1 cm³/rev (8.00 in³/rev) and utilize a swash plate axial piston variable displacement design, achieving infinitely variable flow by adjusting the swash plate angle. The PVH131R13AF70B252000000100100010A is equipped with a pressure and flow compensator (B-type control) with a pressure compensator setting of 246-254 bar and an IC control/unload valve standby function set at 19-21 bar. The PVH131R13AF30E2520080010C1AE010A features a pressure and flow compensator with torque sensing (E-type control), enabling precise pressure and flow control while limiting prime mover power.
Manufactured to Eaton Vickers’ original engineering specifications, these pumps achieve 100% drop-in interchangeability — the SAE C 4-bolt mounting flange, 38.1 mm straight keyed shaft, port locations, and control interfaces are dimensionally identical to the OEM unit. No piping modifications, coupling changes, or baseplate alterations are required for direct replacement. Every unit undergoes 100% simulated load testing prior to shipment, including rated pressure loading, flow-pressure characteristic verification, and thermal rise testing.
Technical Specifications
PVH131R13AF70B252000000100100010A
Model: PVH131R13AF70B252000000100100010A
Material Number: 02-151683
Series: PVH Series (Eaton Vickers)
Pump Type: Open-circuit variable displacement piston pump, swash plate axial piston design
Displacement: 131.1 cm³/rev (8.00 in³/rev)
Rated Pressure: 250 bar (3625 psi)
Peak Pressure: 280 bar (4060 psi)
Max Speed (Zero Inlet Pressure): 1500 rpm
Max Speed (0.48 bar Inlet Pressure): 1800 rpm
Flow at Rated Speed (1800 rpm): Approx. 223 L/min (59 GPM)
Input Shaft Rotation: R — Clockwise (viewed from shaft end)
Control Type: B — Pressure and flow compensator
Pressure Compensator Setting: 246-254 bar (3568-3684 psi)
Flow Compensator/IC Control Standby: 19-21 bar (276-305 psi)
Torque Sensing: 00 — None
Front Mounting & Input Shaft: 13 — 4-bolt C (SAE J744-127-4), 38.1 mm [1.50 in] straight keyed shaft (key included), shaft extension 62.0 mm [2.44 in]
Main Port Size & Location: AF — Side ports; inlet – 2.500 SAE 4-bolt split flange port standard pressure series (Code 61), 1/2-13 UNC-2B thread; pressure – 1.250 SAE 4-bolt split flange port high-pressure series (Code 62), 1/2-13 UNC-2B thread
Drain Port: .875-14 UNF-2B SAE O-ring port – bottom (top plugged)
Max Displacement Option: 1 — Standard displacement
Shaft Seal: 1 — Single, one-way shaft seal, fluorocarbon (FKM)
Valve Plate Feature: AB — Q250 valve plate
Weight: Approx. 45 kg (reference)
PVH131R13AF30E2520080010C1AE010A
Model: PVH131R13AF30E2520080010C1AE010A
Series: PVH Series (Eaton Vickers)
Pump Type: Open-circuit variable displacement piston pump, swash plate axial piston design
Displacement: 131.1 cm³/rev (8.00 in³/rev)
Rated Pressure: 250 bar (3625 psi)
Peak Pressure: 280 bar (4060 psi)
Max Speed: 1800 rpm (0.48 bar inlet pressure)
Flow at Rated Speed (1800 rpm): Approx. 223 L/min (59 GPM)
Input Shaft Rotation: R — Clockwise (viewed from shaft end)
Control Type: E — Pressure and flow compensator with torque sensing
Pressure Compensator Setting: 25 — 246-254 bar (3568-3684 psi)
Flow Compensator/IC Control Standby: 20 — 19-21 bar (276-305 psi)
Max Displacement Option: 1 — Standard displacement
Shaft Seal: 1 — Single, one-way shaft seal, fluorocarbon (FKM)
Weight: Approx. 45 kg (reference)
Note: The PVH131R13AF70B252000000100100010A corresponds to material number 02-151683 with 59 GPM @ 1800 RPM flow and 3635 PSI maximum rated pressure. The PVH131R13AF30E2520080010C1AE010A features E-type control with torque sensing, enabling precise pressure and flow control while limiting prime mover power.
PVH Series Key Characteristics
Displacement Range: 57 to 141 cc/rev (3.48 to 8.67 in³/rev)
Rated Pressure: Up to 250 bar (3625 psi)
Peak Pressure: 280 bar (4060 psi)
Control Options: Pressure compensation, pressure & flow compensation, torque sensing, load sensing, and more
Design Features: Compact and lightweight design, heavy-duty bearings and shafts, minimal internal deflection and wear
Rated Speed (Zero Inlet Pressure): 1500 rpm (PVH131/141); 1800 rpm (PVH057 to PVH106)
Rated Speed (0.48 bar Inlet Pressure): 1800 rpm (PVH131/141)
Key Technical Advantages
1. 100% Drop-in Interchangeability
The PVH131R13AF70B252000000100100010A and PVH131R13AF30E2520080010C1AE010A feature an SAE C 4-bolt mounting flange (SAE J744-127-4), 38.1 mm straight keyed shaft, and port and control interfaces machined to Eaton Vickers original drawings, achieving complete physical and hydraulic interchangeability with the OEM pump. No piping modifications, coupling changes, or baseplate alterations are required for direct replacement, minimizing downtime and reducing total maintenance costs.
2. Heavy-Duty Bearing & Shaft Design
The PVH series utilizes heavy-duty bearings and shafts, resulting in minimal internal deflections and wear for longer life and maximum uptime. The shaft system is designed for high torque carrying capacity with a maximum continuous torque of 765 N·m, ensuring stable operation at rated pressure and speed. The dual-bearing support structure maintains precise swash plate motion accuracy under high-pressure pulsation conditions, extending the service life of critical kinematic pairs.
3. Flexible Control Configurations
The two PVH131 models offer different control solutions. The PVH131R13AF70B252000000100100010A features B-type control with an integrated pressure and flow compensator and IC control/unload valve standby function, automatically reducing displacement to leakage-only levels when system pressure reaches the compensator setting, achieving energy-saving operation. The PVH131R13AF30E2520080010C1AE010A adds torque sensing to the E-type control, limiting pump input torque to a preset value by continuously monitoring delivery pressure and swash plate angle, effectively protecting the prime mover from overload damage. Both control types support remote control via load sensing lines.
4. Precision Machining & High Volumetric Efficiency
Pistons and cylinder bores are precision-matched with micron-level clearances, effectively minimizing internal leakage with volumetric efficiency exceeding 95% at rated conditions. The lapped cylinder block-to-valve plate interface maintains a stable oil film at high pressures, reducing wear and heat generation. The PVH series features Q250 valve plates (AB feature) with excellent wear resistance and anti-cavitation capability, suitable for high-frequency pressure switching applications.
5. Compact & Lightweight Design with Multiple Mounting Options
The PVH series features a compact and lightweight design, reducing overall equipment weight and providing better access for installation and servicing. In addition to the standard SAE C 4-bolt flange mounting, the series supports various mounting flange and shaft options including ISO standard flanges (available for PVH57QI and PVH74QI) and splined shaft configurations, meeting the installation requirements of different host machines. Furthermore, the PVH131R13AF30E2520080010C1AE010A design supports thru-drive capability (AF30 design), enabling multi-pump tandem configurations.
Application Areas
Machine Tools: CNC lathes, machining centers, and grinding machines — hydraulic chucks, fixture clamping, and spindle loosening systems
Plastics Machinery: Injection molding machines and blow molding machines — mold clamping, injection carriage, and ejection hydraulic circuits
Construction Machinery: Excavators, wheel loaders, and cranes hydraulic power sources
Metallurgical Equipment: Rolling mills, forging presses, and metal forming equipment hydraulic control systems
Marine & Offshore: Deck machinery and steering gear hydraulic systems
General Industrial Hydraulic Systems: Test benches, hydraulic power units, and automated production line hydraulic power units
The PVH series is particularly suitable for machine tool, plastics, and construction applications requiring medium-to-high pressure variable piston pumps.
Expert Maintenance Tips
Pre-Installation Check: Before installation, the pump case must be filled with clean ISO VG46 anti-wear hydraulic oil. The internal bearings and high-speed sliding components (including piston shoes and spherical bushings) require continuous lubrication — never dry-start the pump. All pipes and tubing must be thoroughly cleaned before installation. Recommended cleaning methods include sandblasting, wire brushing, pickling, and power flushing with a clean solvent to remove loose particles.
Coupling Alignment: The coaxiality deviation (TIR) between pump shaft and motor shaft must be controlled within 0.05 mm. Pump shafts are designed to be installed in couplings with a slip fit — pounding can damage the bearings. Flexible couplings must be used; never use tire-type couplings. For direct mounting, the pilot on the pump mounting flange assures correct mounting and shaft alignment. Make sure the pilot is firmly seated in the accessory pad of the power source.
Rotation Direction Verification: Shaft rotation (R or L) is specified in position 8 of the model code and is stamped on the pump mounting flange. Never drive a pump in the wrong direction of rotation — seizure will result and cause expensive repairs.
Fluid Cleanliness Management: System oil cleanliness must achieve NAS Class 9 or higher (ISO 4406 18/16/13). Contamination is the primary cause of premature piston pump failure. Install high-precision return-line filters. ISO VG46 hydraulic oil is recommended; viscosity selection should be based on actual operating temperature.
Case Drain Requirements: The case drain line must be routed separately and freely back to the reservoir below oil level, with back pressure not exceeding 0.2 MPa. The uppermost drain port should be used, and the drain piping should be equal to or larger in size than the drain port.
Control Setting Verification: For the PVH131R13AF70B252000000100100010A, verify the pressure compensator setting matches system working pressure during initial commissioning. The pressure compensator setting range is 246-254 bar, and the flow compensator/IC control standby setting range is 19-21 bar. For the PVH131R13AF30E2520080010C1AE010A, use a torque meter to verify the torque sensing setting matches the prime mover power rating.
First Start-up & Restart After Extended Shutdown: After initial installation or extended shutdown, perform a “low-speed no-load air purge” procedure — run at low speed for 3 to 5 minutes until air is fully expelled, then gradually apply load.
Periodic Inspection: All hydraulic connections must be kept tight. A loose connection in a pressure line will cause leakage and system pressure loss. Periodic inspection of fluid condition and piping connections can save time-consuming breakdowns and unnecessary parts replacement.
