Design code
Design Criteria：GB/T12234
Structure length：GB/T12221
Connection：GB/T9124.1, JB/T79, HG20592
Test and inspection：GB/T 26480
Pressure-Temperature：-29~600°C
The gate valve is straight valve, which typically has a parallel closing element perpendicular to the process logistics, that is, it slides into the logistics layer and closes. The simplification of the gate valve structure and its extensive use for general use and different temperature and pressure conditions make it one of the most common valves used today. It is specially designed for thin slurry and frozen or vacuum operation with solids, particles and powder, and is easy to maintain and remove. Gate valves are essentially fire safe and often prescribed for fire safety operations.
Flange-connected cast steel gate valve is suitable for nominal pressure PN1.6~25.0MPa, working temperature-29-600 C of petroleum, chemical, thermal power station and other working conditions of the pipeline, cut off or connect the pipeline medium.
Its main structural features are:
1. The product has reasonable structure, reliable sealing, excellent performance and beautiful shape.
2. Seal surface, overlay cobalt-based cemented carbide, wear resistance, corrosion resistance, good abrasion resistance, long service life.
3.The valve rod has good corrosion resistance and abrasion resistance.
4.The valve is equipped with an inverted sealing structure and reliable sealing.
5.Parts material, flange and welding end size can be reasonably selected according to the actual working conditions or users, to meet the needs of various projects.