PN40 DN350 Hydraulic operated butterfly valves with counterweight were exported to Georgia.
These butterfly valves will be installed at the inlet of hydroturbine in hydro power station.
These butterfly valves will be controlled by PLC control cabinet to close quickly first at the beginning and then close slowly to avoid water hammer to protect the pipeline.
The close speed and time can be adjusted according to request by customer easily.
The end user also can adjust the degree when the butterfly valve close slowly by limit switch.
These slow-closing butterfly valves were tested by the third party inspection institution SGS successfully.