All welds for nozzles and manways shall be full penetration through the vessel wall.
接管和人孔的焊缝应为穿过容器壁的全熔透。
2
The inlet pipe penetration into the vessel, the pressure drop across any block valves used. upstream of the venting device, and the inlet piping must be considered when determining these losses.
According to penetration data required from test, this paper has finished the test re search that welding groove types and dimensions of pressure vessel effect the SAW's penetration.