DN2000 plunger valve/ needle valve/ regulating valve/ piston valve

Plunger Valve,Piston Valve,Flow regulation,Ductile Iron

At present, the piston valves are the water valves with the highest adjustment accuracy and the best anti-cavitation function in the world, the operating torque of them is the smallest in the known valves.
Product application
1. Decompression
Decompression range is large, single stage valve can be decompressed from 6.3mpa to 0.1mpa. The valve has no cavitation and running noise. In the hydropower station with high pressure head, the water from the penstock can be supplied to the low pressure water system of the hydropower station after decompression by the valve.
2. Reservoir water level regulation and sand washing
When discharged into the atmosphere, the water flows contract first, then diffuse at a wide conical angle and decompose into a thin spray state. If water flow is to be suppressed, a beam device can be installed, which can not only mix air and water, but also concentrate flow.
3. Decompression
Piston valves can be used as discharge valves for bypass pipes of hydroelectric generating units. When the main intake valve closes, the piston valves open automatically to eliminate the harm of water hammer to the system.
4. Flow Control and Cutoff
In the full-open to full-closed stroke, the flow coefficient of the valve has a linear relationship with the opening of the valve. Even in the full-closed to 10% opening stroke, the valve has a good flow control effect. The valve can also cut off the flow passage, and play the role of gate valves, globe valves and other valves. The sealing performance is good.

plunger valve brochure.pdf

Wuhan Libin Valve Manufacturing Co., Ltd. is a high-end water industry valve manufacturing enterprise, which is a strategic partner of Wuhan Valve Co., Ltd. Libin has 30 years of valve production history, and it is a high-quality manufacturer of the United States, Europe, and other international first-class valve enterprises.
In China, Libin has a first-class valve manufacturing base and types of equipment for testing. Libin has a great technical reserve which can provide a high-level of technical consultation for users and designing institute, meanwhile, has in-depth research on the problems of water hammer, cavitation and vibration in some hydraulic systems, and super-large scale pressure reduction, etc. Libin have a lot of classic cases.
Libin is very strict in QC. It have been producing and selling valves for ten years, no fault, no repair.
Libin has strong design and production capacity, both conventional products and customized products, the periods of design, production, and delivery are very short. Libin has own special cost control experience, and the price of valves is extremely competitive.
Libin is willing to work closely with valve users, manufacturers and dealers all over the world. Our aim is to develop the best products and provide the best service.

Our Advantages:

We can customize special products for a range of customers;
We can provide high-level technical services in the stage of engineering design to guide users to select suitable valves;
We deliver the goods quickly;
The price of our products is low;
The failure rate of our products is zero.