Flowserve Cast Globe Valves - Manual (Page 23)

Globe Valves FCD ADENIM0011-00
23
6.0 DISASSEMBLY
(Continued)
6.2.4 Disc & Stem: (Fig. 16)
The disc (004) and stem (025) are lifted out of the Body together utilizing an eye-bolt in the tapped hole
provided at the end of the stem. In order to separate the disc assembly from the stem, the disc skirt (005)
must be unthreaded from the disc. To prevent backing out during operation, the skirt is tack welded to the
disc. When grinding these welds make sure all the bead is removed. Failure to do so may cause damage to
the skirt threads. Once the weld is removed the disc can be unthreaded from the skirt/disc assembly. The
skirt is held on the stem by a retainer (028) that consists of two 1800 ring segments. Access to the retainer
is gained by raising the skirt on the stem whereby the ring halves can be pulled out of the slot in the stem
below the backseat. The skirt can now be slid off the long end of the stem. Care should be taken to prevent
the ring halves from being misplaced.
FIGURE 16