الوصف

Heavy hammer hydraulic butterfly valve works with high pressure oil produced by oil pump to drive piston barrel to move and rotate the valve pole to open the valve via brace gearing while it lifts up the heavy hammer which is connected with valve pole.When the valve opens to the full, autolock is applied. When the butterfly valve needs to be shut off,pressure oil in energy storage(or spring) relieves the locked ingot in advance, then start the oil discharge loop.Under the efffect of heavy hammer moment,moving water moment(pressure oil in the energy storage), the valve closes quickly first and slowly later to eliminate wawter hammer's intercepting current to protect water turbine unit.