Page 239 - Root Cause Failure Analysis
P. 239

Seals and Packing    221

















                   Figure 18-7  Proper and improper instahtion of packing (Bearings Inc. catalogue).



                         21.  Stagger the butt joints, placing the first ring butt at 12 o’clock; the second
                            at 6 o’clock; the third at 3 o’clock; the fourth at 9 o’clock; and so  forth,
                            until the packing box is filled (Figure 18-8).  NOTE: When the last ring has
                            been installed, there should be enough room to insert the gland follower ‘L8
                            to q6 in. into the stuffing box (Figure 18-9).
                         22.  Install the lantern ring in its correct location within the gland. Do not force
                            the lantern ring into position (Figure 18-10).


















                   Figure 18-8  Stagger butt joints (Bearings Inc. cntalogue).









                                J




                   Figure 18-9  Proper gland follower clearance (Bearings Inc. catalogue).
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