Check valve, as a key device in fluid control systems to prevent media backflow, ensures the stable operation of pipeline systems with its reliable performance and various specifications. The nominal pressure grades include PN10, PN16, PN25, etc., which can withstand different levels of fluid pressure, ensuring accurate check function under various pressure conditions. The check valve adopts flange connection, which is not only convenient for installation and disassembly but also ensures a tight connection between the valve and the pipeline, reducing the risk of leakage. Internally, the check valve’s disc design is delicate, capable of quickly responding to changes in media flow. When the media flows forward, the disc automatically opens, with low flow resistance, ensuring smooth media passage; when there is a trend of backflow, the disc closes rapidly, tightly fitting the seat, effectively preventing media backflow. The spring or other auxiliary closing devices are carefully adjusted to ensure the timeliness and tightness of the disc closure. Specifications: design and manufacture GB/T12236, structural length GB/T12221, flange dimensions JB/T79, inspection standard JB/T9092
