Instruction Manual
D103553X012
Large ET and ED Valves
July 2014
10
Figure 4. Typical Globe Valve Bonnet
CU4317
7. Lift the valve plug and stem assembly out of the valve body and set it on a protective surface. If the valve plug is to
be reused, protect the valve plug seating surface to prevent scratches.
Table 3. Packing Flange Nut Torque for Packing Without a Spring
VALVE STEM
DIAMETER
PRESSURE
RATING
GRAPHITE-TYPE PACKING
PTFE-TYPE PACKING
Minimum Torque
Maximum Torque
Minimum Torque
Maximum Torque
mm
Inch
N
S
m
Lbf
S
ft
N
S
m
Lbf
S
ft
N
S
m
Lbf
S
ft
N
S
m
Lbf
S
ft
31.8
1-1/4
CL150 & 300
CL600
33
45
24.3
33.2
49
67
36.1
49.4
16
21
11.8
15.5
25
33
18.4
24.3
50.8
2
CL300
43
32
65
48
20
15
31
23
CL600
61
45
91
67
27
20
41
30
Table 4. Body-to-Bonnet Bolt Torque
BOLT SIZE, INCH
THREADS PER INCH
BOLTING TORQUE
(1)
N
S
m
Lbf
S
ft
1-1/4
8
990
730
1-1/2
8
1750
1290
1. For B7, B7M, B16, and 660 bolting materials. For other materials, contact your Emerson Process Management sales office for torque values.
8. Install screws or bolts into the tapped holes in the top of the cage assembly (key 3), and carefully lift it out of the
valve body. Remove the cage gasket (key 11).
9. If further trim maintenance is required, refer to the Trim Maintenance section.
