Hydropower Ball Valve-Accumulator Hydraulic Type

Weight-type hydraulic control ball valve uses weight potential energy for automatic closing without external power, ideal for emergency shut-off in hydropower, pumping and oil/gas pipelines to prevent runaway and water hammer.Closing is performed in fast-slow two stages to ensure rapid shut-off while avoiding destructive water hammer.
Features:

• Dual upstream/downstream sealing for high reliability and easy maintenance.

Extremely low flow resistance compared with other valve types.

• No continuous power supply required for closing.
• Supports local operation and PLC-based remote control for unmanned operation.
• Equipped with a dual pump system (motor-driven + manual pump) for manual operation in case of power
  failure

The electro -hydraulic control system is complete and can work as a standalone unit or as a subsystem of DCS for centralized control. It realizes interlocking with pumps, turbines, bypass valves and other pipelinee quipment.Multiple adjustable points allow programmable opening/closing timing and angle. The valve ensures power-off automatic closing, effectively suppresses water hammer, prevents pump/turbine overspeed, reduce spressure fluctuation, and guarantees safe and stable operation.