<3. Installation>
23
IM 01E24A01-01EN
Table 3.3.7 Flange Type Tightening Torque Values for Plastic Piping
Tightening torque values for PTFE lining (N·m)
Gasket types
within sensor
Fluororubber gasket (Optional codes GA, GC, or GD)
Gasket types
for user’s flange
Fluororubber gasket, chloroprene rubber gasket, or the equivalent in hardness
Flange Rating
JIS 10K
ASME Class 150
JIS 20K
ASME Class 300
EN PN16
EN PN40
JIS F12
Thread
Standards
Size mm
Metric
screw
Metric
screw
Unified
screw
Metric
screw
Metric
screw
Unified
screw
Metric
screw
Metric
screw
Metric
screw
25
3.1 to 5.1
2.5 to 4.0
5.4 to 9.0
6.6 to 11.0
―
5.0 to 8.3
―
32
4.6 to 7.7
3.5 to 5.5
8.2 to 13.7
8.8 to 14.6
―
8.7 to 14.4
―
40
5.4 to 8.9
4.3 to 6.8
9.6 to 16.0
13.2 to 21.1
―
10.7 to 17.9
―
50
8.1 to 13.4
3.8 to 6.4
7.0 to 11.7
8.0 to 13.3
―
16.8 to 28.1
―
65
12.6 to 21.0
5.9 to 9.8
6.4 to 10.7
7.4 to 12.0
4.8 to 8.1
―
―
80
6.6 to 11.1
5.9 to 9.8
8.6 to 14.4
7.4 to 12.0
5.2 to 8.6
―
13.7 to 22.9
100
8.7 to 14.5
8.2 to 13.6
11.8 to 19.6
10.3 to 16.7
7.0 to 11.6
―
18.8 to 31.3
125
14.2 to 23.6
12.0 to 19.4
16.6 to 27.6
13.0 to 21.2
9.5 to 15.8
―
15.9 to 26.5
Tightening torque values for PTFE lining (in.·lbf)
Gasket types
within sensor
Fluororubber gasket (Optional codes GA, GC, or GD)
Gasket types
for user’s flange
Fluororubber gasket, chloroprene rubber gasket, or the equivalent in hardness
Flange Rating
JIS 10K
ASME Class 150
JIS 20K
ASME Class 300
EN PN16
EN PN40
JIS F12
Thread
Standards
Size in.
Metric
screw
Metric
screw
Unified
screw
Metric
screw
Metric
screw
Unified
screw
Metric
screw
Metric
screw
Metric
screw
1.0
27.4 to 45.1
22.1 to 35.4
47.8 to 79.7
58.4 to 97.4
―
44.3 to 73.5
―
1.25
40.7 to 68.2
31.0 to 48.7
72.6 to 121.3
77.9 to 129.2
―
77.0 to 127.5
―
1.5
47.8 to 78.8
38.1 to 60.2
85.0 to 141.6
116.8 to 186.8
―
94.7 to 158.4
―
2.0
71.7 to 118.6
33.6 to 56.6
62.0 to 103.6
70.8 to 117.7
―
148.7 to 248.7
―
2.5
111.5 to 185.9
52.2 to 86.7
56.6 to 94.7
65.5 to 106.2
42.5 to 71.7
―
―
3.0
58.4 to 98.2
52.2 to 86.7
76.1 to 127.5
65.5 to 106.2
46.0 to 76.1
―
121.3 to 202.7
4.0
77.0 to 128.3
72.6 to 120.4
104.4 to 173.5
91.2 to 147.8
62.0 to 102.7
―
166.4 to 277.0
5.0
125.7 to 208.9
106.2 to 171.7
146.9 to 244.3
115.1 to 187.6
84.1 to 139.8
―
140.7 to 234.5
Installation
3