The control valve, also referred to as a regulating valve, is mainly used to regulate fluid flow parameters. As its regulating components receive control signals, the valve stem automatically adjusts the opening degree accordingly, so as to precisely control the flow rate, pressure and temperature of the medium. It is widely used in heating systems, gas supply pipelines, petrochemical plants and other automatic control scenarios.
The globe valve is a forced-seal valve. By rotating the valve stem, the disc is pressed tightly against the valve seat to achieve complete shutoff. It features reliable sealing performance and is suitable for pipelines conveying corrosive media such as natural gas, liquefied gas and sulfuric acid, as well as other working conditions requiring strict cut-off.
The gate valve controls fluid flow by lifting or lowering the gate vertically through the valve stem, similar to a gate. With two-sided sealing rings, it can seal the full cross-section of the pipeline. It is typically used only in fully open or fully closed states and is not suitable for flow regulation. It is mainly used as a shut-off valve in water supply, sewage treatment, ship piping systems and other applications.
The swing check valve is an automatic valve that opens by inlet fluid pressure and closes automatically by its own weight when upstream and downstream pressures are balanced, effectively preventing backflow. It is designed for one-way flow protection and widely installed in petroleum, chemical industry, pharmaceutical and other medium transmission pipelines.
