NACHI Variable Vane Pump VDR-1A-1A1-13 Parameters

Basic Information

• Model: VDR-1A-1A1-13
• Type: Variable Volume Single Vane Pump
• Series: VDR 13 Design Series (improved from old 11/12 design series with mounting interchangeability)
• Mounting Method: Foot Type Mount (denoted by “A” in the model)
• Flow Characteristic: Constant Discharge Type (denoted by “A” in the model)
• Design Number: 13
• Ring Size: 1 (corresponding to pressure adjustment range code “1”)

Technical Specifications

• Capacity (Displacement): 13 cm³/rev
• No-Load Discharge Rate:
• 1000 min⁻¹: 13 ℓ/min (3.6 gpm)
• 1200 min⁻¹: 16 ℓ/min (4.3 gpm)
• 1500 min⁻¹: 20 ℓ/min (5.5 gpm)
• 1800 min⁻¹: 24 ℓ/min (6.6 gpm)

Key Features

• Energy-efficient and economical operation, with built-in high-precision pressure compensation structure to minimize power loss, especially at full cutoff.
• High-precision instantaneous response, ensuring prompt on-off and off-on operation for stable and accurate performance in hydraulic systems.
• Low noise operation even in the high-pressure range, achieved by optimized journal bearings and improved suction/discharge port configurations.
• Compact design with small volume, and the input proportional to pressure does not increase, effectively preventing oil temperature rise.
• Durable construction with specially selected materials and exquisite workmanship, and it can eliminate the need for relief valves and unloading valves in the circuit.

Note