Flange connection gate valve is suitable for nominal pressure PN1.6~25.0MPa working temperature -29~600'C petroleum, chemical, thermal power station and other conditions of the pipeline, cut off or connect the pipeline medium.
Its main structural features are.
1. Reasonable structure, reliable sealing, excellent performance, beautiful by type.
2. The sealing surface is surfaced with cobalt-based hard alloy, which is wear-resistant, corrosion-resistant, and has good anti-scratch performance and long service life.
3. The valve stem is tempered and surface nitriding treatment, has good corrosion resistance and anti-scratch.
4. The valve is equipped with inverted sealing structure, reliable sealing.
5. The material of parts and the size of flange and butt-welding end can be reasonably selected according to the actual working condition or the user's request to meet the needs of various projects.