On 23th,Feb,the different diameter pig valve (DD pig valve) which research and manufacturing independently by Dipper Valve have ready to delivery. This valve will service to one refined oil pipeline in Shan’Xi province.
Different Diameter Pig Valve is a newly kind pig valve. It is a pig valve who service to a pipeline which with two different nominal diameter for pigging purpose. The greatest advantage is use one valve to instead of use two valves to the pipeline with different size,this valve can use as pig receiving valve as well as pig launching valve. The success of this technology,will save a lot investment into the pipeline project and bring good social benefit.