... and uninterrupted production and, if possible, prevent sudden and forced shutdowns of the system. Therefore, the use of methods for leak repair during service is of particular importance and interest. Since the geometric and structural conditions of a bonnet valve often make it impossible to apply the conventional...

...Dong Xue; Song Huang; Hu Hui; Mengfei Pang; Yunfei Long; Shijian Chen; Xiaokang Wu; Weiwei Zhou; Yongning Guo This work proposed a technique reference on the determination of autofrettage pressure for ultra-high pressure valve. The detailed numerical autofrettage process for a valve body with 340...