I. Introduction
The valve is manually driven and has an aeration function in a high vacuum pipeline. It has the advantages of small size, reliable use, good sealing performance and long service life, and is one of the preferred valves for vacuum equipment. The valve is powered by the hand rotation, which drives the spool to move, thus opening and closing the valve. Its working medium is air and non-corrosive gas.
II. Features
Simple structure, easy to replace and repair;
Easy to clean design;