The engineer or designer must choose among P - W. M. …

I I I FIGURE 1. Threaded flanges need not be welded FIGURE 3. Slip-on flanges offer an initial lower cost FIGURE 2 Socketweld flanges have been commonly used FIGURE 4.A lapjoint flange can yield savings In material for small pipe sizes costs If the pipe were resting against the

  Engineer, Choose, Designer, Must, The engineer or designer must choose