Vickers PVQ Series Axial Piston Variable Pump Specifications

1. Basic Specifications

• Model: Vickers PVQ Series (PVQ10, PVQ13, PVQ16, PVQ20, PVQ25, PVQ32, PVQ40, PVQ45, PVQ63, etc.)
• Pump Type: Axial Piston Variable Displacement Pump
• Application: Mainly for Industrial Equipment (machine tools, plastic machinery, industrial hydraulic systems, etc.), suitable for noise-sensitive working environments
• Design Feature: Straight-axis structure, low noise (patented timing configuration reduces noise and pressure pulsations), multiple control options, flexible installation, capable of adapting to various hydraulic fluids, and optional through-shaft drive for multi-pump applications
• Volume Efficiency: ≥93% – 95%

2. Performance Parameters

• Maximum Geometric Displacement: 10.5 – 63.0 cm³/r (0.643 – 3.844 in³/r), specific value varies by sub-model
• Maximum Operating Pressure: 230 bar (3300 psi) for continuous duty; 250 bar (3600 psi) for intermittent duty; partial sub-models up to 210 bar (3000 psi) or 186 bar (2700 psi)
• Speed Range:
  • Industrial Type: Maximum 1800 rpm; Output Flow varies by displacement (e.g., PVQ63: ~113.4 LPM @ 1800 rpm)
  • Note: The pump speed should be adjusted according to the actual displacement to ensure stable operation
• Fluid Requirement: Adaptable to petroleum-based hydraulic oil, synthetic hydraulic oil, aqueous hydraulic fluid and phosphatidic acid hydraulic fluid; Viscosity: 32 – 46 cSt at 38°C; Inlet Pressure: 0 psi (standard)
• Oil Temperature Range: Suitable for normal industrial operating temperature (specific range subject to actual application and hydraulic fluid type)
• Noise Level: Low-noise design, noise level close to or lower than the driving motor, meeting demanding industrial noise requirements

3. Installation & Structural Parameters

• Mounting Flange: Optional SAE “A” 2-bolt type (SAE J744 82-2), SAE “B” type, MA flange, MB flange; Optional ISO 3019/2–80A2HW (only for “N” drive shaft)
• Shaft Rotation: Clockwise (R, standard) or Counterclockwise (L, optional) when viewed from the prime mover end
• Shaft Extension Type:
  • Options: Straight keyed shaft (e.g., 0.75″ dia x 1.75″ long, 2.31″ long), splined shaft (9-tooth, 13-tooth, 26-tooth), ISO 3019/2 E20N/E25N shaft end (only for specific flanges)
  • Example: 31.7 (1.25) dia straight keyed shaft, 22.5 (0.886) dia splined shaft
• Shaft Seal: Single one-way (S) or double two-way (D) seal; Standard Buna N seal, optional fluorocarbon seal; Double seal recommended for series units and wet mounting
• Main Ports:
  • Suction/Pressure Port: SAE O-ring rear/side port, 1.0625″, 1.3125″ or 1.625″ inlet/outlet (varies by model)
  • Drain Port: Standard SAE O-ring port (specific size subject to sub-model)
• Operating Weight: 7.2 – 20.6 kg (16 – 45.4 lbs), specific value varies by sub-model

4. Control & Other Parameters

• Control Modes (Optional):
  • Pressure Compensator (C/CM/CG): C type adjustment range 100-230 bar (1500-3300 psi), standard setting 230 bar (3300 psi); CM type adjustment range 20-100 bar (300-1500 psi), standard setting 70 bar (1000 psi); CG type for hydraulic remote control
  • Load Sensing (V/VC/VX): V type pressure difference setting 6-14 bar (90-200 psi), standard 11 bar (160 psi); VC type high differential spring 15-25 bar (218-363 psi); VX type extra high differential spring 26-40 bar (377-580 psi, only for PVQ81/PVQ106)
  • Combined Controls: Pressure Compensator + Load Sensing (C**V**, C**VC**), with optional bleed-down orifice (B) or plugged (P)
• Pressure Compensator Factory Setting: C type standard 230 bar (3300 psi, coded as 23); CM type standard 70 bar (1000 psi, coded as 7)
• Oil Cleanliness Requirement: ISO 16/13 or cleaner for extended component service life
• Design Number: 40 (for PVQ20, PVQ50, PVQ63, PVQ141); 50 (for PVQ81, PVQ106); Installation dimensions remain unchanged for design numbers 40-49 and 50-59
• Special Options: Adjustable maximum displacement stop (S: with stop, F: without stop); Through-shaft drive (optional coupling combinations); Vertical installation; Composite mounting

5. Model Coding (Reference)

• PVQ: Series Identifier
• 20: Maximum Geometric Displacement (21.1 cm³/r)
• B2: Mounting Flange Type
• L: Shaft Rotation (Counterclockwise)
• SE1S: Port Type & Shaft Seal
• 20: Design Number
• C21: Pressure Compensator (C type, 210 bar setting)
• 11: Control Design Number