Save $ Using Division 2 External Pressure Rules

Jun 26

Can you save money using ASME Division 2 rules instead of Division 1?

There are many ways to take advantage of the higher allowables and more accurate numerical methods in Division 2.

Take a look at this simple external pressure (vacuum) case:

Outside Diameter, Do = 60.75” (1543 mm)

Thickness, t = 0.375” (9.53 mm)

Unsupported Length, L = 264” (6706 mm)

The Division 1 vessel does not pass the vacuum condition of 14.7 psi (101 kPa).

The Division 2 vessel passes the vacuum condition of 14.7 psi (101 kPa).

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