Hydraulic Control Butterfly Valve

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. We can produce the hydraulic control butterfly valve with sizes of DN300~4800mm and nominal pressure of PN16~25bar. 

1. FEATURES 

• Quick close and slow closing 

• Automatic control

• Electrical control

• PLC control

• Must valve for water turbine in hydropower station

2. TECHNICAL SPECIFICATIONS 

• PN6/PN10/PN16/PN25

• Size: 12″~192″ (DN300~4800mm)

• Materials: cast iron (A126 B, GG25), ductile iron (A536 65-45-12, GGG40), carbon steel (A216 WCB)

• Applicable medium: water, rain water, river water

• Applicable temperature: -10℃~+80℃

• Working pressure: 6bar, 10bar, 16bar, 25bar

3. STANDARDS 

• Design & manufacturing: GB/T12238

• Face to face: GB/T12221

• Flanged ends: GB/T17241.6-2008 / BS4504 / EN1092-2 / DIN2501

• Inspection & testing: GB/T13927

4. APPLICATIONS 

• Hydropower station

• Thermal power plant

• Water plant

• Water project