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12. Repeat steps 6, 7, 8, 9 & 10, to get the stack of 4 packing
rings; alternate 2 ‘Graphite packing rings (thick)’ & 2 ‘Diffusion
barrier rings (thin).
13. Install the Threaded
Packing Gland (#8) over the valve
stem:
13.1 Threaded Packing Gland Sizes: 1/2”-2” Cl.150 & 300, 3”
Cl.150 DN15-50 PN10-40 & DN80 PN10-16.
13.1.1 Rotate the Threaded Packing gland (#8) clockwise until
it is lightly compressing the packing (#13).
Note: Care must be taken to not cross-thread the Threaded
Packing gland (#8) and the body (#1).
Seat Assembly of KFO-1176 (Standard Trim Floating Ball
Valve)
14. Insert Wave spring (#41) into the Body part (#1).
15. Insert S-ring (#42) into the body part (#1) over the wave
spring (#41). Keep orientation of S-ring as shown in Fig.6.
16. Insert seal ring (#40) over seat "B" (#6) and insert the two
together into the valve cover (or tail) (#2). Apply grease to the
sealing surfaces of the seat (#6). Apply pressure and axial force
to pre-compress the seat seal according to the values shown
in table B.
17. Using a press, apply pressure on the seat "A" (#6) to pre-
compress the seat seal. Use a plastic spacer to protect the seat
and apply specified pressure. In the absence of a press, contact
KROMBACH for an alternative method.
Assembly of KFO-1176 Standard Trim Floating Ball Valve
Figure 6
Assembly of KFO-1176 Standard Trim Floating Ball Valve
Summary of Contents for TUFSEAT Performance Series
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