Design code
Design Criteria：GB/T 12236, API6D BS1868
Structure length：GB/T 12221, ASME B16.10
Connection：JB/T79 ASME B16.5
Test and inspection：GB/T26480, API598
Pressure-Temperature：-29~550°C
The function of the swing check valve is to prevent the medium backflow in the line. The swing check valve belongs to the automatic valve class, and the opening and closing parts open or close by the force of the flow medium. The check valve is only used in the medium flow to prevent the medium return to prevent accidents.
The swing check valve is suitable for the pipeline of pressure PN1.6-16.0MPa, Class 150, and-2500, working temperature-29-570 C in petroleum, chemical, pharmaceutical, chemical fertilizer, power industry and other working conditions to prevent the backflow of the medium.
Its main structural features are:
1.The product has reasonable structure, reliable sealing, excellent performance and beautiful shape.
2.Seal face over facing cobalt-based cemented carbide, wear resistance, corrosion resistance, abrasion resistance, long service life.
3.Internal pin shaft structure, reduce the external leakage point, reliable use.
4.When the pressure is 16.0MPa and Class 1500, the middle chamber of the valve adopts the self-compact sealing structure. The higher the medium pressure, the better the sealing performance.
5.Parts material, flange and welding end size can be reasonably selected according to the actual working conditions or user requirements to meet the needs of various projects.