Design code
Design standard: API 600,API603,ASME B16.34,GB/T12234
Structure length: ASME B16.10, GB/T12221
Connection standard：ASME B16.5,ASME B16.47,GB/T 9113 ,HG/T 20592,
Test and Inspection: API 598,GB/T 26480
Pressure-Temperature: -46~+600°C
A gate valve is a linear motion valve which typically has a parallel closing element perpendicular to the process stream, i.e. it slides into the stream layer and closes. The simplicity of the gate valve structure and its large number of applications for general purpose and different temperature and pressure conditions make it one of the most common valves in use today. It is specially designed for thin slurries with entrained solids, particles and powders and for refrigeration or vacuum operations, and is easy to maintain and dismantle. Gate valves are inherently fire safe and are often specified for fire safe operation. Therefore it is widely used in petroleum, chemical, fertilizer, oilfield, power and other industries.
Flange connection cast steel gate valve is suitable for Class150~2500, PN10~PN420, working temperature -46~600 ° C petroleum, chemical industry, thermal power station, natural gas, water and other conditions of the pipeline, cut off or connect the pipeline medium.
Its main structural features are.
1. The valve can be used bolt bonnet structure and pressure seal bonnet structure.
2. The sealing surface is surfaced with cobalt-based cemented carbide, which is wear-resistant, corrosion-resistant, and has good anti-scratch performance and long service life.
3. The valve stem is tempered and surface nitrided, with good corrosion resistance and anti-scratch properties.
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.