Hydraulic Control Butterfly Valve Descriptions

Hydraulic control butterfly valve with counter weight is opened by hydraulic drive and closed by potential energy of counter weight. It is used to substitute to gate valve and check valve, and is given low fluid resistance coefficient, making it an energy-saving product. It is closed by quick and slow stages, firstly quick close and then slow close. According to different working conditions, the time and angle of quick and slow close may be adjusted. Hydraulic system is provided with automatic pressure sustaining and automatic reset functions upon opening, performed as dual protection for valve opening. Electrical control may be ordinary control and PLC control responding to customer’s requests to carry out the in-line action between pump and valve, or spot remote control and computer integrated control.
When the hydraulic control butterfly valve is cancelled with the counter weight, can be changed into energy storage type flow control valve. Flowspec Luokai can produce the hydraulic control butterfly valve with sizes of DN300~4800mm and nominal pressure of PN16~25bar.
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