Select INTs from start of string separated by a character (pipe). Update other columns using these INTs

In the above screen shot, the *Description* column has many special characters. We want before | number update in T1 column and | after number in T2 column. Please suggest the proper syntax. If there are no before and after | numbers, like the second row | SE +17.5D CYL1.25 update columns T1 and T2 null.