What is a Butterfly Wafer Check Valve

by:Lianke Valve     2022-07-30
Everyone must know something about ordinary check valves. Here, I will introduce a special check valve that is a butterfly wafer check valve. The so-called butterfly check valve is a valve that automatically opens and closes according to the flow of the medium itself. The stop valve is an automatic valve whose main function is to prevent the reverse flow of the medium, prevent the reverse rotation of the pump and the drive motor, and prevent the drainage of the medium in the container. The stop valve can also be used to supply auxiliary systems where the pressure in the pipeline rises above the system pressure. The stop valve is mainly divided into a rotary valve top valve (rotating according to the center of gravity) and a lift valve (moving along the axis). Features of butterfly check valve: 1. The disc of the butterfly check valve is disc-shaped and rotates on the rotating shaft of the valve seat channel. Because the channel in the valve is streamlined, the flow pressure is smaller than that of the butterfly check valve, which is suitable for the case of low flow rate and large diameter with little change in flow. Butterfly stop valve is divided into three types: single-lobe type, double-lobe type and multi-half type. These three forms are mainly divided according to the caliber of the valve. The purpose is to dampen the hydraulic shock when the media stops flowing or reverses the flow. 2. A check valve in which the disc rotates around a pin in the seat. The disc check valve has a simple structure and can only be installed on horizontal pipelines with good sealing performance. 3. A valve in which the disc slides along the centerline of the valve body. Pipeline check valve is a new valve. It is small in size, light in weight and good in processing technology. It is one of the development directions of check valve. Working principle: 1. When the medium flows in the specified direction, the valve disc is opened by the force of the medium; when the medium flows back, due to the self-weight of the valve disc and the action of the reverse force of the medium, the disc and the valve seat are separated. The sealing surface is tightly closed and closed to prevent the reverse flow of the medium. 2. The sealing surfaces of the valve body and disc are made of stainless steel surfacing. Do you know anything about butterfly wafer check valves? If you don't, you can consult Lianke Valve Co.,Ltd., which is a valve manufacturer dedicated to the manufacture of various valves. Contact: +86-577-8585 9626. Contact: .
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