Fisher NotchFlo DST CL300 Instruction Manual page 6

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