The main purpose

High temperature and high pressure swing check valve is suitable for steam and water medium pipelines and medium pipelines such as petroleum, chemical industry, metallurgy and other medium pipelines that only allow one-way flow of medium. The valve relies on the pressure of the pipeline medium flow to open or close the valve on its own. When the medium flows back, it is blocked by the valve disc and plays a role in preventing backflow. Compared with other valve products, this series is characterized by high temperature and high pressure resistance and a unique self-sealing design. The higher the pressure, the more reliable the sealing.

Features

• The shell is formed by casting or forging process, with smooth appearance and uniform structure, meeting the requirements of working conditions;

• The valve disc adopts an internal hanging structure, with no external leakage points except for the self-sealing of the middle cavity, and the structure is compact;

• The shaft and rocker adopt a multi-sliding pair design, and the surface of the shaft is treated with anti-corrosion treatment, which has good corrosion resistance and scratch resistance, eliminating the phenomenon of valve disc opening and closing jamming;

• The sealing surfaces of the valve disc and valve seat are overlayed with STL carbide, which is resistant to high temperatures and provides a tight and reliable seal.

Main design specifications