H44H and H44Y PN16~PN250 rotary check valves are suitable for pipelines under various working conditions such as petroleum, chemical, pharmaceutical, chemical fertilizer, electric power industries with pressure of 1.6~25MPa and working temperature of -29~+550°C. The applicable media are water, oil, steam, acidic media, etc. 

 [Product Features] 

 H44H and H44Y rotary check valves are automatically opened and closed by the force generated by the flow of the pipeline intermediary itself. They belong to an automatic valve. Check valves are used in pipeline systems. Their main functions are to prevent the backflow of the medium, prevent the reversal of the pump and its driving motor, and the discharge of the medium in the container. Check valves can also be used to supply pipelines where the pressure may rise to auxiliary systems that exceed the pressure of the main system.

Each process, each facility, and each environmental constraint has its own special requirements. Therefore, Dongyan offers a comprehensive range of products covering different performance levels, pressures, different functions and different materials.