Note：

• Tubular motor coils stainless steel wire ropes to pull flood gate panel to recessed position

• EM lock energized to maintain floodgate panel in recessed position

• On activation, tubular motor rotates to pull floodgate slats down to close aperture

• On activatation, power supply may be disrupted

• Counterweight will descend to pull floodgate slats down to close to aperture