Simple structure, convenient maintenance, small resistance, simple operation, good sealing performance, corrosion resistance, high temperature resistant, long service life, easy installation, installation is not affected by medium flow restrictions.
More than flange can apply to GB, DIN, JIS standard pipe connection, the applicable medium is water, steam, powder.
工作原理和结构说明（The working principle and structure）：
This valve is mainly composed of body, disc, valve seat, valve stem and other parts.
This depend on the pneumatic valve actuator, turn the valve stem, the stem drive disc spins in the medium, to achieve the purpose of adjusting flow rate.