The inspection job are involved in each phase of flange production, from raw material inspection, semi-finished flange inspection to finished flange inspection by our experienced and technical inspector, to ensure the flanges shipped from PENGTONG are zero defects.

These are the dimensions we inspected on the finished flange regularly for your reference.

Outside Diameter check  

Thickness Check

Inside Diameter check   

Bolt Circle Diameter (BCD) Check

Drilling Hole Check  

Raised Face Check  

Total Length Check     

Outside Diameter of Neck Check  

Weld Neck Chamfer Check

Wall Thickness Check