Flowserve TSQVIOM Durco Mach 1 Severe Service Valve IOM - Manual (Page 11)

11
10. Following insertion of the packing set,
the diaphragm gland pusher is placed
over the plug stem. Seat the packing by
loading the gland pusher with an arbor
press. The packing may be seated in
sections but the gland pusher will only fit a
cone ring. It must not be used to seat
against a cup. See Figure 9. The packing
gland is now placed over the plug stem
and seated with the arbor press.
Figure 9
11. The packing adjuster is placed over the
plug stem. Each fastener may have on
optional twelve Belleville washers placed
as shown in Figure 10. The packing
adjuster fasteners should be tightened
finger tight. Care should be taken such
that the packing adjuster remains level
with respect to the top cap.
12. The thrust washer is placed over the
plug stem and should lay flat against
the plug stem bearing surface as
shown in Figure 10.
Figure 10
13. The plug gland is placed over the
plug stem. Next, the grounding spring
is pushed onto the plug stem. The
adjuster with fasteners is placed over
the plug stem and secured by the
adjuster fasteners shown in Figure 11.
The adjuster fasteners should be
tightened to position the top cap
gasket surface in line with the flat
surface which the plug bearing rests
on as shown in Figure 11.