Hydraulic Counterweight Butterfly Valve, 6-138 Inch, Flanged

Product Name: Double Flanged High-Performance Counterweight Butterfly Valve
Type: Hydraulic Control Butterfly Valve
Nominal Diameter: DN150–DN3500, 6-138 Inch
Nominal Pressure: PN6–PN40, Class 150-300 LB
Body & Disc Material: Carbon Steel, Grey Cast Iron, Ductile Iron
Seat Material: EPDM, Metal Seat
End Connection: Double Flange
Medium Temperature:
EPDM Seat: up to 80°C
Metal Seat: up to 425°C
Applicable Media: Fresh Water, Sea Water, Sediment Water, Oil, etc.
Opening valve time: 10 to 120 seconds (adjustable)
Quick closing time: 1.5 to 30 seconds (adjustable)
Slow closing time: 6 to 120 seconds (adjustable)
Fast close angle: 70° ± 10°
Slow close angle: 20° ± 10°
Open state minimum flow resistance coefficient: 0.1
Optional control power: AC 220V, DC 220V, DC 110V, DC 24V

Product Description

The hydraulic control butterfly valve represents the pinnacle of advanced pipeline control technology both domestically and internationally. It is primarily designed for installation at the turbine outlet in hydroelectric power stations, functioning as a turbine inlet valve. Additionally, it can be installed at the pump outlet in various pump stations, including those in water conservancy, electricity, water supply, and drainage systems. The valve operates in conjunction with the pipeline and the main equipment, adhering to the principles of the hydraulic transition process. By following preset opening and closing procedures and effectively mitigating water hammer in the pipeline, it ensures reliable pipeline cutoff and plays a crucial role in safeguarding the security of the pipeline system.