A technologically advanced valve design, featuring a compact structure, smooth operation, excellent sealing performance, and an extended service life. The integration of intelligent actuators enables automated operation, significantly improving efficiency and reliability.
The valve incorporates two key structural features and faces several technical challenges. First, the pressure-bearing components are constructed using thick welded steel plates, which present challenges in ensuring proper weld penetration and maintaining structural integrity without distortion. Second, the parallel double gate metal seal design uses cemented carbide surfacing on the sealing surfaces, allowing for frictionless operation when the valve is open. Third, the valve employs a disc spring storage mechanism combined with a wedge system to ensure smooth and reliable movement. Finally, the installation of intelligent actuators supports full operational automation.
From a technical difficulty perspective, the first challenge involves welding ultra-thick steel plates for the body and major structural parts, requiring advanced techniques to prevent distortion and achieve complete penetration. Second, enhancing the hardness and wear resistance of the sealing surfaces—especially for large-area carbide surfacing—demands precise and consistent application methods. Third, after welding the valve seat and body, any minor deformation near the sealing surface can directly affect the valve’s sealing performance. Fourth, the guide plate is made of thin cast iron, making the casting process complex and challenging. Lastly, the built-in disc spring storage mechanism compresses during closure, enabling quick and reliable opening. These springs operate under high temperatures (415–593°C) for extended periods, making material selection critical for long-term performance.
This product is a parallel dual-plate cracking gas valve, specifically designed for use in pyrolysis gas environments containing coke particles. It is suitable for long-term operation at high temperatures ranging from 415 to 593°C, offering reliable performance in demanding industrial applications.
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