Electro-hydraulic Controlled Flange Butterfly Valve

The pressure-type, lock-type electro-hydraulic butterfly valve, open by hydraulic drive, can be closed by the weight of the hammer. After the valve is installed, it can replace the gate valve (butterfly valve) and check valve, and the flow resistance coefficient is small. Valve closing time and speed of two stages, the first paragraph for the fast off, the latter part of the slow off, and can be adjusted according to user needs fast and slow closing time and angle, pressure-type hydraulic system with open valve automatically holding pressure and automatic reset function. Locked with dual automatic locking and locking pin locking. Accumulator electro-hydraulic butterfly valve open by the pump, and closed by the accumulator. As a result of the accumulator off the valve, thus eliminating the weight, so take up space, easy installation, compact structure. Electrical control can be based on user needs common type control and PLC control, to achieve the valve linkage, and remote control can be achieved in situ and computer control.