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Standard
External size
outer dia.
of connected
copper pipe
C
in
mm
in
1/4
6.35
1/4"(±0.0012)
3/8
9.52
3/8"(±0.0012)
1/2
12.7
1/2"(±0.0012)
5/8
15.88
5/8"(±0.0012)
3/4
19.05
3/4"(±0.0012)
7/8
22.2
7/8"(±0.0012)
1-1/8
28.58
1-1/8"(±0.0012)
1-3/8
34.92
1-3/8"(±0.0012)
1-5/8
41.28
1-5/8"(±0.0012)
Screw size and tightening torque
Power supply terminal
Earth screw
Communication wire terminal
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Internal size
Standard outer dia.
(Allowable difference)
F
in
mm
+0.001
6.35(±0.03)
0.25"
(
)
6
+0.001
9.52(±0.03)
0.38"
(
)
6
+0.001
12.70(±0.03)
0.5"
(
)
12.81
6
+0.001
15.88(±0.03)
0.63"
(
)
16.00
6
+0.001
19.05(±0.03)
0.76"
(
)
19.19
2
+0.001
(
)
22.22(±0.03)
0.88"
23.36
2
+0.002
(
)
28.58(±0.04)
1.13"
28.75
4
+0.001
(
)
34.90(±0.04)
1.38"
35.11
6
+0.003
(
41.28(±0.05)
1.63"
)
42.28
1
Connected section
Min. depth of
insertion
K
mm
in
mm
in
+0.0
6.45
(
)
0.28
7
0.24
4
+0.0
9.62
(
)
0.31
8
0.28
4
+0.0
(
)
0.35
9
0.31
4
+0.0
(
)
0.35
9
0.31
4
+0.0
(
)
0.43
11
0.39
3
+0.0
(
)
0.43
11
0.39
3
+0.0
(
)
0.51
13
0.47
6
+0.0
(
)
0.55
14
0.51
4
+0.0
(
)
0.59
15
0.55
8
Tightening torque
Screw size
1.84 to 2.2 (2.5 to 3.0)
M6
4.06 to 4.87 (5.5 to 6.6)
M8
0.89 to 1.03 (1.2 to 1.4)
M
- 18 -
Oval value
G
mm
in
mm
6
0.0024" or less
0.06 or less
7
0.0031" or less
0.08 or less
8
0.0039" or less
0.10 or less
8
0.0051" or less
0.13 or less
10
0.0059" or less
0.15 or less
10
0.0063" or less
0.16 or less
12
0.0079" or less
0.20 or less
13
0.0098" or less
0.25 or less
14
0.0110" or less
0.28 or less
ft•lbs (N•m)
Min.
Thickness
of
coupling
in
mm
0.020"
0.50
0.024"
0.60
0.028"
0.70
0.031"
0.80
0.031"
0.80
0.032"
0.82
0.039"
1.00
0.047"
1.20
0.053"
1.35
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