Instruction Manual
D103211X012
NotchFlo DST Valve
March 2011
6
Figure 3. PTFE V‐Ring Packing Arrangements for Plain and Extension Bonnets
UPPER WIPER
(KEY 27)
PACKING
FOLLOWER (KEY 28)
PACKING BOX
RING (KEY 26)
FOR 316 SST
METAL PACKING BOX PARTS
SINGLE ARRANGEMENTS
12A7837‐A
B1429‐5
FOR ALL OTHER METAL PACKING
BOX PART MATERIALS
SPACER (KEY 24)
UPPER WIPER
(KEY 27)
PACKING
FOLLOWER
(KEY 28)
PACKING BOX
RING (KEY 26)
FEMALE
ADAPTOR
FEMALE
ADAPTOR
MALE
ADAPTOR
PACKING
RING
MALE
ADAPTOR
PACKING RING
WASHER
(KEY 25)
SPRING
(KEY 24)
LOWER
WIPER
LOWER
WIPER
1
1
1
1
1
1
1
1
NOTE:
MALE ADAPTOR, PACKING RING, FEMALE ADAPTOR,
AND LOWER WIPER ARE PART OF PACKING SET (KEY 22).
2 REQ'D FOR DOUBLE ARRANGEMENTS, EXCEPT LOWER WIPER.
1
Figure 4. Detail of Graphite Ribbon/Filament Packing
for Plain and Extension Bonnets
PACKING
FOLLOWER
(KEY 28)
LANTERN
RING (KEY 24)
PACKING BOX
RING (KEY 26)
1
12.7 mm
(1/2 INCH)
STEM
SINGLE ARRANGEMENTS
NOTE:
0.102 mm (0.004 INCH) THICK SACRIFICIAL ZINC WASHERS;
USE ONLY ONE BELOW EACH GRAPHITE RIBBON RING.
1
GRAPHITE
RIBBON
PACKING RING
(KEY 23)
GRAPHITE
FILAMENT
PACKING RING
(KEY 23)
1
19.1 & 25.4 mm
(3/4 & 1 INCH)
STEM
13A9775‐B
13A9776‐B
Figure 5. Detail of Graphite ULF Packing for Plain
Bonnets
SINGLE ARRANGEMENTS
39B9286‐A
Table 3. CL600 Recommended Torque for Packing Flange Nuts (non live‐loaded)
VALVE STEM DIAMETER
PRESSURE
RATING
GRAPHITE TYPE PACKING
PTFE TYPE PACKING
Minimum Torque
Maximum Torque
Minimum Torque
Maximum Torque
mm
Inches
N
S
m
Lbf
S
in
N
S
m
Lbf
S
in
N
S
m
Lbf
S
in
N
S
m
Lbf
S
in
12.7
1/2
CL600
9
81
14
122
4
39
7
58
19.1
3/4
CL600
21
182
31
274
10
87
15
131
25.4
1
CL600
35
310
53
466
17
149
25
223