Yongjia Kosen Valve

Hydraulic Counterweight Butterfly Valve

Product Description The KOSEN Hydraulic Counterweight Butterfly Valves, Normally named as Counterweight Butterfly Valve is one type of Advanced Products used for management on Controlling Equipments. They are widely used into the area of entrance of Turbine in Hydraulic Power Station,...

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Product Details

Product Description 

The hydraulic counterweight butterfly valve is composed of butterfly valve body, hydraulic by-pass valve, heavy hammer, release device, manual oil pump (or electric oil pump), rack drive oil cylinder and electronic control. The pressure oil of the oil pump is input into the rack drive cylinder, and the gear on the main shaft of the butterfly plate is rotated by the upper rack of the piston to open the butterfly plate, and the weight on the coaxial shaft is lifted to a high point. The pawl on the weight hammer is locked by the spindle shaft on the release device; the spindle shaft is fixed and controlled by an electromagnet and a supporting device. When the accident occurs, due to the action of the electronic control part, the electromagnet is cut off, the lock spindle shaft is out of control, and the butterfly valve is automatically closed by releasing and rotating around the shaft under the weight of the heavy hammer.

1.Small flow co-efficiency, high automatic, complete functions or devices, reliable performance which is one new high auto-tech.

2.Energy saving products designed and produced based on domestic/overseas similar areas covering valve, hydraulic and electric industries. 

3.With profound knowledge in such products, we rechon vango valve can also welcome customers' OEM order upon request to meet different areas requirement.

Main Parameters
Size Ranges: DN150~DN4000
Pressure Ratings: PN25~PN40
Working Temperature: No more than 80 Degree C
Service Medium: Fresh Water, Sea Water, Sand Water and Oils etc.
Special Parameters
Valve Closing Time:
10~60S: Valves below DN100
20~120S: Valves include and Above DN1000


It is suitable for conveying corrosive and non-corrosive fluid medium in the engineering system such as generator, gas, natural gas, liquefied petroleum gas, urban gas, cold and hot air, chemical smelting and power generation environmental protection, and it is used to regulate and cut the flow of medium.

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