DAIKIN variable piston pump V23 series parameters

1. Basic Specifications

• Model Series: V23 Series Variable Displacement Piston Pump

• Theoretical Displacement: 23.0 cm³/rev (1.40 in³/rev)

• Maximum Operating Pressure: 25 MPa (250 bar / 3500 psi)

• Permissible Rotational Speed Range: 500 - 1800 rpm (min - max)

• Direction of Rotation: Clockwise (R) or Counterclockwise (L), non-changeable; determined by model code

• Applicable Fluid: Petroleum-based hydraulic fluid (standard); optional water-glycol (W) or phosphate ester (F) hydraulic fluid

2. Performance Parameters

• Discharge Rate (at 1800 rpm): 12 - 41.4 L/min (3.17 - 10.94 GPM), applicable for both axial and side ports

• Pressure Adjustment Range: 0.8 - 25 MPa (8 - 250 bar / 115 - 3500 psi), specific range varies by control method (e.g., 2.0 - 25 MPa for type A4)

• Differential Pressure Limit: Maximum 10.3 bar (150 psi) when reverse flow occurs; throttling reverse flow may damage O-ring

• Noise Level: Low noise operation over the entire pressure range

• Efficiency: High efficiency with low power loss, reducing fluid temperature rise and enabling smaller tank design

3. Control Methods

• Pressure Compensator Control (Code: A): Mechanical adjustment; discharge rate automatically decreases to maintain preset pressure when discharge pressure approaches the set value

• Combination Control (Code: C): Two types available – pressure feedback method (Code: H) and solenoid operated method (Code: J), enabling high-pressure low-flow and low-pressure high-flow control to reduce power consumption

• Dual Pressure Control (Code: D): Electrically switched, supporting two pressure settings for different working conditions

• Power-Match Control (Code: SA): Combines flow and pressure compensator control for optimized energy efficiency

• Remote Control Option (Code: RC): Available for certain control methods, enabling remote pressure adjustment via pilot relief valve

4. Installation & Dimensions

• Mounting Flange: SAE A or B 2-bolt standard

• Piping Direction: Axial port (standard) or side port (Code: X)

• Weight: 18.4 kg (40.6 lb) for axial port; 21.5 kg (47.4 lb) for side port

• Valve Orifice: V23A: 4.4 mm (0.17 in); V23B: 7.2 mm (0.28 in) (for related valve components)

5. Material Specifications (Valve Components)

• Valve Body: SS 316 (ASTM A479/A276) or Brass (ASTM B16)

• Plug: PTFE-coated SS 316 (ASTM A479/A276) or PTFE-coated Brass (ASTM B16)

• O-ring: PTFE-coated FKM; lubricant is silicone-based

• Handle & Pin: Nylon handle; SS 316 (ASTM A276) pin

6. Notes

• All dimensions are for reference only and subject to change; dimensions with DAIKIN nuts are in finger-tight position

• The design number is subject to change; refer to the official manual for forward/backward compatibility information

• Low oil heat generation, fast response times, and high repetition accuracy ensure high reliability and long service life