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<3. Installation>
21
IM 01E24A01-01EN
Table 3.3.6 Flange Type Tightening Torque Values for Metal Piping
Tightening torque values for PTFE/Natural Hard Rubber/Natural Soft Rubber lining (N·m)
Gasket types
within sensor
Natural Soft Rubber lining: No gasket (Standard)
PTFE/Natural Hard Rubber lining: Non-asbestos gasket, PTFE-sheathed non-asbestos gasket, or the equivalent in hardness
Gasket types
for user’s flange
Non-asbestos gasket, PTFE-sheathed non-asbestos gasket, or the equivalent in hardness
Flange Rating
JIS 10K
ASME Class 150
EN PN10
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
Metric
screw
Unified
screw
Metric
screw
Metric
screw
Metric
screw
25
10.3 to 17.2
8.5 to 13.1
―
10.6 to 17.2
11.1 to 17.8
―
8.4 to 13.1
―
32
15.5 to 25.7
11.6 to 17.7
―
16.1 to 25.7
15.0 to 23.3
―
14.7 to 23.0
―
40
18.0 to 29.7
14.3 to 21.4
―
19.0 to 29.7
22.3 to 33.7
―
18.4 to 28.2
―
50
27.0 to 43.8
12.9 to 21.0
―
13.8 to 21.9
13.7 to 21.0
―
29.1 to 42.7
―
65
41.6 to 66.6
19.7 to 31.4
―
20.7 to 33.3
24.2 to 37.5
16.3 to 26.3
―
―
80
22.2 to 36.0
19.7 to 30.6
―
28.0 to 45.1
24.1 to 36.6
17.3 to 27.5
―
45.3 to 72.1
100
28.9 to 45.8
27.0 to 40.5
―
37.9 to 59.1
33.2 to 48.4
23.2 to 35.7
―
61.0 to 94.6
125
47.1 to 74.4
39.5 to 57.1
―
53.2 to 81.4
41.2 to 57.1
31.0 to 45.9
―
51.7 to 79.4
150
70.4 to 108.0
41.4 to 59.8
―
60.8 to 92.7
51.6 to 72.1
58.0 to 86.4
―
77.1 to 115.2
200
55.8 to 84.1
54.9 to 74.1
69.1 to 103.2
86.4 to 124.4
85.5 to 117.2
47.3 to 68.8
―
70.1 to 100.9
250
95.0 to 139.9
66.3 to 91.8
68.2 to 100.8 140.3 to 193.9
100.3 to 131.0
84.6 to 120.9
―
134.0 to 192.0
300
76.8 to 111.6
75.1 to 97.5
72.4 to 102.3 143.8 to 195.8
158.8 to 201.5
66.0 to 92.1
―
117.3 to 163.3
350
111.9 to 167.8
88.2 to 126.1
82.4 to 117.7
―
―
―
―
184.7 to 268.4
400
169.6 to 251.4
126.4 to 176.9
141.1 to 203.4
―
―
―
―
210.9 to 305.4
Tightening torque values for PTFE/Natural Hard Rubber/Natural Soft Rubber lining (in.·lbf)
Gasket types
within sensor
Natural Soft Rubber lining: No gasket (Standard)
PTFE/Natural Hard Rubber lining: Non-asbestos gasket, PTFE-sheathed non-asbestos gasket, or the equivalent in hardness
Gasket types
for user’s flange
Non-asbestos gasket, PTFE-sheathed non-asbestos gasket, or the equivalent in hardness
Flange Rating
JIS 10K
ASME Class 150
EN PN10
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
Metric
screw
Unified
screw
Metric
screw
Metric
screw
Metric
screw
1.0
91.2 to 152.2
75.2 to 115.9
―
93.8 to 152.2
98.2 to 157.5
―
74.3 to 115.9
―
1.25
137.2 to 227.5
102.7 to 156.7
―
142.5 to 227.5
132.8 to 206.2
―
130.1 to 203.6
―
1.5
159.3 to 262.9
126.6 to 189.4
―
168.2 to 262.9
197.4 to 298.3
―
162.9 to 249.6
―
2.0
239.0 to 387.7
114.2 to 185.9
―
122.1 to 193.8
121.3 to 185.9
―
257.6 to 377.9
―
2.5
368.2 to 589.5
174.4 to 277.9
―
183.2 to 294.7
214.2 to 331.9
144.3 to 232.8
―
―
3.0
196.5 to 318.6
174.4 to 270.8
―
247.8 to 399.2
213.3 to 323.9
153.1 to 243.4
―
400.9 to 638.1
4.0
255.8 to 405.4
239.0 to 358.5
―
335.4 to 523.1
293.8 to 428.4
205.3 to 316.0
―
539.9 to 837.3
5.0
416.9 to 658.5
349.6 to 505.4
―
470.9 to 720.5
364.7 to 505.4
274.4 to 406.2
―
457.6 to 702.7
6.0
623.1 to 955.9
366.4 to 529.3
―
538.1 to 820.5
456.7 to 638.1
513.3 to 764.7
―
682.4 to 1019.6
8.0
493.9 to 744.3
485.9 to 655.8
611.6 to 913.4 764.7 to 1101.0
756.7 to 1037.3
418.6 to 608.9
―
620.4 to 893.0
10
840.8 to 1238.2
586.8 to 812.5
603.6 to 892.2 1241.8 to 1716.2
887.7 to 1159.4
748.8 to 1070.1
―
1186.0 to 1699.3
12
679.7 to 987.7
664.7 to 862.9
640.8 to 905.4 1272.7 to 1733.0
1405.5 to 1783.4
584.1 to 815.2
―
1038.2 to 1445.3
14
990.4 to 1485.2
780.6 to 1116.1
729.3 to 1041.7
―
―
―
―
1634.7 to 2375.5
16
1501.1 to 2225.1
1118.7 to 1565.7
1248.8 to 1800.2
―
―
―
―
1866.6 to 2703.0
Installation
3