What are the technical parameters of the 20V series vane pump

The technical parameters of the 20V series vane pump are as follows：

1. Core parameters
   Displacement range
   The displacement range of the 20V series is 16~40 mL/r, and the specific models are distinguished by letter suffixes, such as：
   20V-12: actual displacement 16 mL/r
   20V-25: Actual displacement 40 mL/r
   This series supports customized displacement to meet different flow requirements.
   Pressure parameters
   Rated pressure: 210 bar (21 MPa), suitable for constant pressure conditions.
   Peak pressure: 240 bar (24 MPa), which can withstand high pressure shocks for a short time.
   Pressure adaptability: Through the design of wear-resistant oil distribution pan, high volumetric efficiency is still maintained under high pressure.
   Flow range
   Flow formula: Flow rate (L/min) = displacement (mL/r) × speed (rpm)÷1000.
   Example: The 20V-25 model has a flow rate of 40×1500÷1000=60 L/min at a speed of 1500 rpm.
   Actual flow range: 12~100 L/min (at 1000~3600 rpm).
   Speed range
   Standard speed: 1000~3600 rpm, suitable for high-speed drive needs.
   Minimum speed: 600 rpm to ensure the stability of low-speed start-up.
   Special medium speed：
   When using water ethylene glycol, the maximum speed is limited to 1500 rpm.
   When using synthetic liquid or oil-in-water emulsion, the maximum speed is 1200 rpm.
2. Design characteristics and performance advantages
   Wear-resistant oil distribution pan design
   Reduce the wear of the oil distribution pan and blades under high pressure, and extend the life of the pump body.
   The volumetric efficiency still exceeds 90% when the working pressure reaches 210 bar, reducing energy loss.
   Low noise operation
   The flow channel structure is optimized to reduce hydraulic impact and the noise level is as low as 62 dB(A), which is suitable for noise-sensitive industrial environments.
   Media compatibility
   Support mineral oil, phosphate esters, water ethylene glycol (HFC) and other media.
   Prohibited media: high water-based liquid (HFA), highly corrosive media.
   Structural strengthening
   The cast iron shell enhances structural rigidity and adapts to high-speed working conditions.
   The flow channel of the oil inlet is designed to accelerate the oil evenly, and it can still operate stably under low inlet pressure.
3. Application scenarios
   Injection molding machine
   As the main supply oil pump, it provides a stable high-pressure oil source to ensure accurate synchronization of mold closing and injection actions.
   Example: The 2520V double pump (25V+20V combination) is used in the mold closing/injection system of the injection molding machine to achieve independent control of the dual outlets.
   Die casting machine
   The characteristics of the high-pressure quantitative pump meet the needs of rapid filling of the injection cylinder and reduce product defects.
   Example: A 45V single pump (displacement 45~125 mL/r) is used for the main oil supply of large die-casting machines with a flow rate of 300 L/min.
   Construction machinery
   The wear-resistant design is resistant to heavy working conditions such as trenchers and backhoes, and reduces the failure rate.
   Example: 3525V double pump (35V+25V combination) is used in multi-action systems of construction machinery, and the cast iron-aluminum alloy composite housing reduces weight.
   Ship system
   The water-ethylene glycol medium compatible model meets the fire protection requirements of the ship’s hydraulic station, and the impact-resistant design adapts to the bumps of the waves.
   Example: The 3520V double pump (35V+20V combination) is used in the hydraulic station of the ship’s steering gear, and the low-pulsation triangular tank oil distribution pan reduces vibration.