
Instruction Manual
D100401X012
EZ Valve
November 2017
8
Table 2. Body‐to‐Bonnet Torque Guidelines
VALVE SIZE, NPS
TORQUES
(1, 3)
EZ
Bolt Material
SA193‐B7
SA193‐B8M
(2)
N
S
m
Lbf
S
ft
N
S
m
Lbf
S
ft
1 or smaller
129
95
64
47
1‐1/2 or 2
96
71
45
33
3
169
125
88
65
4
271
200
156
115
1. Determined from laboratory tests.
2. SA193‐B8M annealed.
3. For other materials, contact your
or Local Business Partner for torques.
Figure 6. Typical HIGH‐SEAL Graphite ULF
Packing System
39B4153‐A
1. Find number 219 not required with 3/8‐inch stem
Figure 7. Typical ENVIRO‐SEAL Packing System with
PTFE Packing
Note:
For PTFE packing, tighten the packing box hex nuts until the top of the flange is even
with the top of the sleeve on the follower (spring pack assembly).
1
1
A6297
HEX NUT
(KEY 212)
PACKING
FLANGE
(KEY 201)
ANTI-
EXTRUSION
WASHERS
LOWER WIPER
(KEY 218)
STUD
(KEY 200)
SPRING
PACK
ASSEMBLY
(KEY 217)
LANTERN
RINGS
(KEY 216)
PACKING
SET
(KEY 215)
PACKING
BOX RING
(KEY 211)