Accumulator Charging Valve

Accumulator Charging Valve

The accumulator charging valve is designed for open hydraulic systems and is installed between the pump and downstream secondary hydraulic devices, such as a power steering control valve and cylinders within the same hydraulic circuit.

The valve draws fluid from a fixed displacement pump to charge the accumulator as needed, completing the charging at a preset flow rate and pressure, while maintaining a constant flow within the set pressure range.

During accumulator charging, the flow to downstream auxiliary hydraulic devices is reduced; however, this does not significantly affect their operation. As long as the relief valve does not interfere with flow or pressure transmission from the pump, the downstream secondary hydraulic devices can always access full system pressure.

The charging flow rate and the upper and lower pressure limits of the accumulator are set during production.

   Product Features：

1. Charging pressure range: 70–200 bar
   
2. Wider upper and lower charging pressure limits, reducing hydraulic pump start frequency and extending service life
   
3. Charging flow rate: 3 / 6 / 10 / 25 L/min
   
4. Bypass port flow capacity: 5–113 L/min
   
5. Bypass port pressure drop: 5 bar (at 40 L/min)
   
6. Compact structure, easy to install in confined spaces
   
7. Additional options available: single-circuit / dual-circuit / relief valve
   
   

   Operating Conditions：

1. Working medium: Mineral-based hydraulic oil
   
2. Hydraulic oil temperature range: −30°C ~ +107°C
   
3. Viscosity range: 2.8–380 cSt
   
4. Cleanliness level: ISO 4406: 18/16/13
   
5. Maximum input pressure: 210 bar
   
   

    For detailed technical specifications and drawing solutions, please contact us at
    suno_fr@sunotech.com.cn or  leave us a message.