How to achieve precise control of high-temperature flue gas flow through LQ-GXF High-temperature pressure relief valve?

1. Linkage mechanism between valve stem and butterfly plate
One of the core components of LQ-GXF High-temperature pressure relief valve is valve stem and butterfly plate. As a transmission element, the valve stem connects the external power source (such as pneumatic actuator) and the internal butterfly plate. When the external power source applies force, the valve stem drives the butterfly plate to rotate around the axis. The butterfly plate is usually disc-shaped, and its rotation angle directly determines the opening of the pipeline, which in turn affects the flow of the medium.

2. Rotation angle and flow control
The rotation angle of the butterfly plate is proportional to the opening of the pipeline. When the butterfly plate is fully closed, the pipeline is completely blocked and the medium cannot pass; when the butterfly plate is fully open, the pipeline is in a fully open state and the medium can flow freely. In practical applications, the rotation angle of the butterfly plate usually varies between 0° and 90° to achieve fine adjustment of the flow. For example, when the butterfly plate rotates 45°, the opening of the pipeline is about 50%, and the flow rate of the medium is also controlled at about 50% accordingly.

3. Power source and control method
LQ-GXF High-temperature pressure relief valve usually uses compressed air as the power source, and drives the rotation of the valve stem and butterfly plate through a pneumatic actuator. The pneumatic actuator can provide a stable and precise driving force to ensure that the rotation angle of the butterfly plate is accurate. In addition, the valve also supports multi-position installation and is not affected by the flow direction of the medium, which further enhances its applicability under different working conditions.

4. Performance advantages in high temperature environments
LQ-GXF High-temperature pressure relief valve shows excellent performance in places where high-temperature flue gas is directly discharged, such as RTO, where the leakage rate requirement is not high. It adopts a new structural form of welding the centerline butterfly plate and the short structural steel plate. It has a compact structure, light weight, and easy installation. It also has the characteristics of small flow resistance and large flow capacity. This design not only avoids the influence of high-temperature expansion, but also makes operation easier.