Emerson Process Management bettis g13 사용자 설명서
Bettis P/N 124840E
Revision “B”
Page 35 of 46
HEX CAP SCREWS (7-20) TORQUE TABLE
TORQUE ±5 % Percent
TORQUE ±5 % Percent
HOUSING
MODEL
(FT-lb.)
N-m
HOUSING
MODEL
(FT-lb.)
N-m
G01
30
41
G7
135
183
G2
30
41
G8
240
325
G3
30
41
G10
285
386
G4
65
88
G13
340
461
G5
65
88
5.2.15 On M3, M3HW and ES models install Monel wire (6-130) through each hex cap screw (7-20)
per the following steps:
NOTE: The following steps provides guidelines for wire locking hex cap screws to
discourage screw loosening and removal in applications where screw removal
could be hazardous.
could be hazardous.
5.2.15.1
Make sure hex cap screws are tightened to their specified torque.
5.2.15.2
Using required lengths of .31 diameter Monel wire as provided in the
Module ordered. When replacing Monel wire use the following table for
wire length requirements.
Module ordered. When replacing Monel wire use the following table for
wire length requirements.
LENGTH
LENGTH
MODEL
Inch
mm
MODEL
Inch
Mm
G01-SR
36
914.4
G5-SR
66
1676.4
G2-SR
44
1117.6
G7-SR
79
2006.6
G3-SR
48
1219.2
G8-SR
88
2235.2
G4-SR
55
1397.0
G10-SR
110
2794.0
5.2.15.3
Twist the end of both wires together and insert one through the drilled hole
in the hex cap screw head, pass the second wire over the screw head and
twist it three (3) times around the first wire at a location where the first wire
exits the screw head.
in the hex cap screw head, pass the second wire over the screw head and
twist it three (3) times around the first wire at a location where the first wire
exits the screw head.
5.2.15.4
Repeat the procedure until the second wire is twist tied to the screw head
through wire of the last screw head.
through wire of the last screw head.