Cast steel rotary check valve

Summary of H44H-25C Cast Steel Swing Check Valve
Swing check valve, also known as one-way valve or check valve, is used to prevent the backflow of medium in the pipeline. A valve that opens or closes by the flow and force of the medium to prevent reverse flow of the medium is called a check valve. Check valves belong to the category of automatic valves and are mainly used in pipelines where the medium flows in one direction. They only allow the medium to flow in one direction to prevent accidents. This type of valve should generally be installed horizontally in pipelines.Swing check valve is suitable for nominal pressure PN1.0MPa~42.0MPa, Class 150-2500; Nominal diameter DN15~1200mm, NPS1/2~48; Used on various pipelines with a working temperature of -196~540 ℃ to prevent medium backflow.

Structure of H44H-25C cast steel rotary check valve
The swing check valve adopts an internal rocker arm swing structure, and all the opening and closing parts of the valve are installed inside the valve body, without penetrating the valve body. Except for the sealing gasket and sealing ring used in the middle flange, there is no external leakage point as a whole, which eliminates the possibility of valve leakage. The swing arm and valve disc connection of the rotary check valve adopt a spherical connection structure, which allows the valve disc to have a certain degree of freedom within a 360 degree range and appropriate micro position compensation.
By selecting different materials (WCB, CF8 (M), CF3 (M), 1Gr5Mo, 15CrMo1V), it can be applied to various media such as water, steam, oil, strong oxidizing media, and urea. Mainly used in pipelines for petroleum, chemical, pharmaceutical, fertilizer, electricity, and other industries.