Experimental Confirmation on the Natural Circulation Valve of Research Reactor

the natural circulation valve of Research reactor is one of the key facilities to remove the residual heat under the condition of natural circulation after the research reactor has been shut down. The special structure and remote operation rod with 10.5 m length has been adopted to meet the requirement onflow resistance and operation performance in the reactor. In order to obtain the practical resistance character of natural valve and confirmation reliability of natural valve, the experiment on seal performance, hydraulic performance and reliability of the valve have been carried out in simulation test loop. The experimental results show that the valve can meet all design requirement on research reactor facility.