VICKERS PVH074 Variable Displacement Axial Piston Pump Specifications

1. Basic Specifications

• Model: VICKERS PVH074 (PVH74QI, PVH074R01AA, etc.)
• Pump Type: Variable Displacement Axial Piston Pump (straight-axis design, open circuit)
• Application: Industrial and Mobile Hydraulic Systems (earthmoving machinery, construction equipment, machine tools, plastic machinery, hydraulic presses, etc.), suitable for high power density and noise-sensitive working environments
• Design Feature: Compact and lightweight structure, high-pressure resistance, low noise operation, multiple optional control modes, thru-drive option for multi-pump installations, and service kits available for critical rotating and control components to simplify maintenance
• Volumetric Efficiency: ≥95% (at rated pressure and speed)

2. Performance Parameters

• Geometric Displacement:
  • PVH074: 73.7 cm³/rev (4.50 in³/rev)
• Maximum Operating Pressure:
  • Continuous Duty: 250 bar (3625 psi)
  • Intermittent Duty: 280 bar (4050 psi)
  • Maximum Pressure (short duration): 310 bar (4500 psi)
• Speed Range:
  • Maximum: 1800 rpm (at 0 inlet pressure)
  • Minimum: 600 rpm
  • Recommended: 1200-1800 rpm for optimal performance and efficiency
• Output Flow (at 1800 rpm, no load):
  • PVH074: ~132.7 LPM (35.0 US GPM)
• Fluid Requirements:
  • Fluid Types: Petroleum-based antiwear hydraulic oil (ISO VG 32, 46, 68), synthetic hydraulic fluids, water glycol fluids, phosphate ester fluids
  • Viscosity Range: 10-400 cSt (at operating temperature), optimal 20-60 cSt
  • Inlet Pressure: -0.02 to 0.2 MPa (-0.29 to 2.9 psi); 0.48 bar (7 psi) inlet pressure is recommended for better performance
• Oil Temperature Range: -10°C to 80°C (14°F to 176°F), maximum short-term 90°C (194°F)
• Noise Level: ≤68 dB(A) (at 1800 rpm, rated pressure), suitable for noise-sensitive industrial applications

3. Installation & Structural Parameters

• Mounting Flange: SAE “C” 4-bolt type (SAE J744-127-4); ISO 3019/2-125B4HW (optional for PVH74QI models)
• Shaft Rotation: Clockwise (R, standard) or Counterclockwise (L, optional) when viewed from the prime mover end
• Shaft Extension Type:
  • Standard: 31.7 mm (1.25 in) diameter straight keyed shaft; optional 38.1 mm (1.50 in) straight keyed shaft
  • Optional: Splined shaft (SAE “C” 14-tooth or 17-tooth), ISO 3019/2 E32N short straight keyed shaft
• Shaft Seal: Single lip seal (standard Buna N), optional double lip seal (recommended for series units and wet mounting); fluorocarbon (Viton) seal is available for high temperature applications
• Main Ports:
  • Suction Port: 2.000″ SAE 4-bolt split flange (Code 61)
  • Pressure Port: 1.000″ SAE O-ring port
  • Drain Port: Standard SAE O-ring port (0.875-14 UNF-2B)
• Operating Weight: ~32 kg (70.5 lbs)
• Thru-Shaft Drive: Available for mounting additional pumps, with optional SAE “A”, “B”, or “C” rear flange mountings

4. Performance & Maintenance Parameters

• Control Modes (Optional):
  • Pressure Compensator (C/CM): C type adjustment range 70-250 bar (1015-3625 psi), standard setting 250 bar (3625 psi); CM type adjustment range 40-130 bar (580-1885 psi), standard setting 70 bar (1015 psi)
  • Load Sensing (V/VT): V type pressure difference setting 20 bar (290 psi); VT type combines load sensing and torque limiter
  • Combined Controls: Pressure Compensator + Load Sensing (C**V), Pressure Compensator + Torque Limiter (C**T), Pressure Compensator + Load Sensing + Torque Limiter (C**VT)
  • Industrial Control (IC): Combines load sensing, remote compensator control, and electro-hydraulic control capabilities, set at 250 bar with 290 psi pressure difference
• Maximum Input Power: ~42 kW (56.3 HP) at 1800 rpm, 250 bar
• Oil Cleanliness Requirement: ISO 16/14/12 or cleaner for extended component service life
• Filtration Recommendation: 10 μm absolute filter for pressure line, 25 μm for suction line
• Design Number: 10 (standard for PVH074), installation dimensions remain unchanged for design numbers 10-19
• Special Options:
  • Adjustable maximum displacement stop (S: with stop, F: without stop), only for non-thru-drive and non-torque control models
  • Thru-shaft drive for multi-pump installations
  • Vertical installation (shaft-up operation)
  • Composite 2-bolt/4-bolt mounting conforming to SAE “C” (suffix 027)

5. Model Coding Explanation (PVH074R01AA10A250000001001AB010A)

• PVH074/PVH74: Series Identifier (PVH = variable displacement axial piston pump, 074/74 = displacement size)
• QI/R01: Design and Control Configuration (QI = industrial version)
• RSF/AA: Mounting Flange and Shaft Type
• 1S/10: Port Position and Design Number (10 = standard design number)
• C25: Pressure Compensator (C type, 250 bar setting)
• 31: Control Design Number (for C, CM, C**V, or IC controls)