Year1
- 口径：
- DN800
- 输出信号：
- 无源接点
Structure and characteristics of electric butterfly valve
Electric butterfly valve has simple structure, small size, light weight, low material consumption, small installation size, rapid opening and closing, partial rotation, and small driving torque. It is used to cut off, connect and regulate the medium in the pipeline, and has good fluid control characteristics and closing and sealing performance.
The electric butterfly valve can transport mud and minimize the accumulation of liquid at the pipe mouth. At low pressure, a good seal can be achieved. Good adjustment performance.
The streamlined design of the butterfly plate of the electric butterfly valve reduces fluid resistance loss and can be said to be an energy-saving product.
The electric butterfly valve stem is a through-rod structure. After quenching and tempering treatment, it has good comprehensive mechanical properties, corrosion resistance and scratch resistance. When the electric butterfly valve opens and closes, the valve stem only rotates and does not move up and down. The packing of the valve stem is not easy to be damaged and the sealing is reliable. It is fixed with the taper pin of the butterfly plate, and the extended end is designed to prevent the valve stem from collapsing when the connection between the valve stem and the butterfly plate breaks accidentally.
The connection methods of electric butterfly valve include flange connection, clamp connection, butt welding connection and lug clamp connection. The driving forms include manual, worm gear transmission, electric, pneumatic, hydraulic, electro-hydraulic linkage and other actuators, which can realize remote control and automatic operation.
Overview and characteristics of electric butterfly valve
It adopts a precision elastic sealing ring and a three-eccentric multi-layer metal hard sealing structure. It is widely used in metallurgy, electric power, petrochemical industry, water supply and drainage and where the medium temperature is ℃. It is used in industrial pipelines such as municipal construction to regulate flow and load-break fluid. The valve adopts a triple eccentric structure. The valve seat and disc sealing surfaces are made of different hardness and stainless steel. It has good corrosion resistance and long service life. The valve has a two-way sealing function. The product complies with the national/valve pressure test standards. Adopting a triple eccentric sealing structure, the valve seat and butterfly plate have almost no wear, and have a sealing function that becomes tighter as you look.
The sealing ring is made of stainless steel, which has the dual advantages of metal hard sealing and elastic sealing. It has excellent sealing performance no matter under low or high temperature conditions, and has the characteristics of corrosion resistance and long service life. The sealing surface of the disc is made of cobalt-based hard alloy surfacing. The sealing surface is wear-resistant and has a long service life. The butterfly plate adopts a quilted frame structure, which has high strength, large flow area and low flow resistance. This valve has a two-way sealing function. It is not restricted by the flow direction of the medium or affected by the spatial position during installation. It can be installed in any direction. The drive device can be installed in multiple positions (rotary or) for user convenience.
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