Vacuum Manual Butterfly Valve

Structural composition

Valve body: It is usually made of carbon steel or stainless steel material, such as the GI series manual vacuum butterfly valve. The valve body material is stainless steel or nickel plated carbon steel, which has good corrosion resistance and strength, can withstand a certain pressure and temperature range, and ensure the stability and sealing of the valve in the vacuum system.

Industrial product manual vacuum butterfly valve
Butterfly plate: installed inside the valve body, in the diameter direction of the pipeline, generally in the shape of a disc, with a material similar to the valve body. It rotates around the axis in the cylindrical channel of the valve body through the drive of the valve shaft, with a rotation angle range of 0 ° -90 °, thereby achieving valve opening and closing and flow control.
Valve shaft: It runs through the valve body and is fixedly connected to the butterfly plate. One end extends out of the valve body and is connected to the manual operating device. The valve shaft, driven by a manual operating device, drives the butterfly plate to rotate, achieving the functions of opening, closing, and flow regulation of the valve.
Seals: Fluororubber, nitrile rubber and other materials are commonly used, such as the seals of GI series manual vacuum butterfly valves made of fluororubber and nitrile rubber. These materials have good elasticity, corrosion resistance, and temperature resistance, which can ensure the sealing of valves under different working conditions and prevent gas leakage.
Product Features
Easy to operate: The valve can be opened and closed manually by rotating the handle or handwheel. The operation is simple and convenient, without the need for additional power sources, making it easy to use in various situations.
Compact structure: The new structural form of welding the midline disc plate and short structural steel plate is designed and manufactured, with small volume, light weight, easy installation and disassembly, which can save installation space and is suitable for vacuum systems with limited space.
Low flow resistance: When the butterfly plate is in the open state, it has less obstruction to the airflow, and the pressure loss when the airflow passes through the valve is small, which can ensure the smooth flow of airflow in the vacuum system and improve the system’s working efficiency.
Good sealing performance: The valve plate adopts a clamping structure to clamp the sealing ring, and the shaft seal adopts a special structure with automatic compensation, which can effectively block the connection between the external atmosphere and the pipeline, achieve bidirectional zero leakage, ensure the sealing performance of the valve, and ensure the vacuum degree of the vacuum system.
Long service life: There are no vulnerable parts such as connecting rods or bolts inside, making it reliable to work. At the same time, high-quality materials and advanced manufacturing processes are used to ensure that the valve has a long service life, reducing the frequency of maintenance and replacement and lowering the cost of use.
Flexible installation: It can be installed at multiple stations without being affected by the flow direction of the medium. The installation position is relatively flexible and can be installed according to the actual pipeline layout and system requirements.