Instruction Manual

Instruction Manual
D100401X012
EZ Valve
June 2014
8
Table 2. Body-to-Bonnet Torque Guidelines
VALVE SIZE, NPS TORQUES
(1, 3)
EZ
Bolt Material
SA193-B7 SA193-B8M
(2)
NSm LbfSft NSm LbfSft
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 Emerson Process Management sales office 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)