AWWA DN1000 Worm Gear Eccentric Butterfly Valve / Industrial Butterfly Valve Casting Iron Material

Eccentric Ball Butterfly Valve,Ball ,Ductile Iron,Water, Worm Gear

1. The valve can achieve two-way zero leakage(forward and backward direction to withstand 1.1 times the rated nominal pressure zero leakage). Using eccentric, floating ball valve board seat. The installation of the rotation center and the seat of the valve core center one eccentricity between the delta(pictured), all closed, valve if it shut down a tiny angle, valve seat sealing surface and the spherical valve core can produce interference, which will produce a lot of extrusion between sealing surface, forming high sealing pressure ratio, implementing strict sealing pressure condition. Valve of the eccentricity of the delta valve is closely theoretical calculation( hydraulic calculation, the bending stiffness and torsional rigidity calculation of eccentric shaft, spherical cap and valve seat deformation calculation, etc.) to meet the requirements of two-way valve seal.
2. The sealing surface does not wear, jam or pull. Due to eccentric ball structure and eccentricity valves give full consideration to the hydraulic characteristics of the fluid and material mechanical properties, when the valve is opened, the valve core is turning a small angle, the valve core and valve seat sealing surface out of. when the valve is closed, the spool and seat contact each other at the last minute to reduce wear Seal are axial float, float distance compensating valve plate installed in hydrostatic pressure, temperature stress, stress under the action of deformation, so the seal between the sealing pressure ratio is basically a constant value, sealing surface does not produce occlusion and strain.
3. The sealing surface has self-purification ability. Dirt, weed, sticks and wire, can be cut off by valve closing seat design.

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.