Table 3.3.7 Wafer Type Tightening Torque Values for Metal Piping
Tightening torque values for PFA/Polyurethane Rubber/Natural Soft Rubber/EPDM Rubber lining type
Gasket types
withinowtube
No gasket (standard)
Gasket types for
user’sange
Non-asbestosbergasket,PTFE-sheathednon-asbestosgasket
(optional codes BCF and BSF), or the equivalent in hardness
Flange
ratings
Size
mm (inch)
JIS 10K
ANSI
Class 150
DIN PN10 JIS 20K
ANSI
Class 300
DIN PN16 DIN PN40
JIS F12
(JIS 75M)
JPI
Class 150
50 (2.0)
45.0 to 56.8
{458.9 to 579.2}
[398.3 to 502.7]
45.0 to 56.8
{458.9 to 579.2}
[398.3 to 502.7]
―
22.5 to 25.9
{229.4 to 264.1}
[199.1 to 229.2]
22.5 to 25.9
{229.4 to 264.1}
[199.1 to 229.2]
―
50.0 to 57.5
{509.9 to 586.3}
[442.5 to 508.9}
―
44.5 to 50.9
{454.1 to 519.8}
[393.9 to 450.9]
65 (2.5)
61.3 to 70.5
{625.1 to 718.9}
[542.5 to 624.0]
61.3 to 70.5
{625.1 to 718.9}
[542.5 to 624.0]
―
30.8 to 35.4
{314.1 to 361.0}
[272.6 to 313.3]
30.8 to 35.4
{314.1 to 361.0}
[272.6 to 313.3]
56.1 to 70.8
{572.1 to 722.0}
[496.5 to 626.6]
― ― ―
80 (3.0)
35.0 to 40.3
{356.9 to 410.9}
[309.8 to 356.7]
76.0 to 80.9
{775.0 to 825.0}
[672.6 to 716.0]
―
39.9 to 45.9
{406.9 to 468.1}
[353.1 to 406.2]
39.9 to 45.9
{406.9 to 468.1}
[353.1 to 406.2]
39.9 to 45.9
{406.9 to 468.1}
[353.1 to 406.2]
―
68.4 to 78.7
{697.5 to 802.5}
[605.4 to 696.5]
70.0 to 80.1
{714.4 to 817.8}
[619.6 to 709.3]
100 (4.0)
46.1 to 53
{470.1 to 540.5}
[408.0 to 469.1]
46.1 to 53
{470.1 to 540.5}
[408.0 to 469.1]
―
52.9 to 60.8
{539.4 to 620.0}
[468.2 to 538.1]
52.9 to 60.8
{539.4 to 620.0}
[468.2 to 538.1]
52.9 to 60.8
{539.4 to 620.0}
[468.2 to 538.1]
―
88.6 to 101.9
{903.5 to 1039}
[784.1 to 901.9]
45.0 to 51.5
{459.0 to 525.2}
[398.1 to 455.6]
125 (5.0)
73.7 to 84.8
{751.5 to 864.7}
[652.3 to 750.5]
73.7 to 84.8
{751.5 to 864.7}
[652.3 to 750.5]
―
80.5 to 92.6
{820.9 to 944.3}
[712.5 to 819.5]
80.5 to 92.6
{820.9 to 944.3}
[712.5 to 819.5]
80.5 to 92.6
{820.9 to 944.3}
[712.5 to 819.5]
―
75.1 to 86.4
{765.8 to 881.0}
[664.7 to 764.7]
―
150 (6.0)
85.4 to 98.2
{870.8 to 1001}
[755.8 to 869.1]
85.4 to 98.2
{870.8 to 1001}
[755.8 to 869.1]
―
61.0 to 70.2
{622.0 to 715.8}
[539.9 to 621.3]
61.0 to 70.2
{622.0 to 715.8}
[539.9 to 621.3]
91.2 to 96.3
{930.0 to 982.0}
[807.2 to 852.3]
―
86.3 to 99.2
{880.0 to 1012}
[763.8 to 878.0]
78.9 to 86.2
{805.2 to 879.9}
[698.4 to 763.2]
200 (8.0)
78.8 to 90.6
{803.5 to 923.9}
[697.4 to 801.8]
113.6 to 135.8
{1158 to 1385}
[1005 to 1202]
113.6 to 135.8
{1158 to 1385}
{1005 to 1202]
87.5 to 100.6
{892.3 to 1026}
[774.4 to 890.3]
87.5 to 100.6
{892.3 to 1026}
[774.4 to 890.3]
87.5 to 100.6
{892.3 to 1026}
[774.4 to 890.3]
―
88.6 to 101.9
{903.5 to 1039}
[784.1 to 901.9]
109.6 to 119.7
{1118 to 1221}
[970 to 1060]
250 (10)
119.4 to 137.3
{1218 to 1400}
[1057 to 1215]
119.4 to 137.3
{1218 to 1400}
[1057 to 1215]
119.4 to 137.3
{1218 to 1400}
{1057 to 1215]
― ― ― ―
158.1 to 181.8
{1612 to 1854}
[1399 to 1609]
120.8 to 136.4
{1232 to 1392}
[1069 to 1207]
300 (12)
83.0 to 99.2
{846.4 to 1012}
[734.6 to 878]
105.2 to 121.0
{1073 to 1234}
[931.1 to 1071]
105.2 to 121.0
{1073 to 1234}
{931.1 to 1071]
― ― ― ―
146.6 to 168.6
{1495 to 1719}
[1297 to 1492]
141.8 to 160.1
{1447 to 1634}
[1255 to 1417]
Tightening torque values for Ceramics lining type
Gasket types
withinowtube
Fluororesinwithceramicllers(Valqua#7020)gasket(standard),oruororesinwithcarbongasket(optionalcodeGF)
Gasket types for
user’sange
Non-asbestos gasket, PTFE-sheathed non-asbestos gasket (optional codes BCF and BSF), or the equivalent in hardness
Flange
ratings
Size
mm (inch)
JIS 10K
ANSI
Class 150
DIN PN10 JIS 20K
ANSI
Class 300
DIN PN16 DIN PN40
JIS F12
(JIS 75M)
50 (2.0)
48.2 to 80.3
{491.5 to 818.8}
[426.6 to 710.7]
48.6 to 81.0
{495.6 to 826.0}
[430.1 to 716.9]
—
23.5 to 39.1
{239.6 to 398.7}
[208.0 to 346.1]
23.7 to 39.5
{241.7 to 402.8}
[209.8 to 349.6]
—
48.2 to 80.3
{491.5 to 818.8}
[426.6 to 710.7]
—
80 (3.0)
31.5 to 52.4
{321.2 to 534.3}
[278.8 to 463.8]
64.2 to 107.0
{654.7 to 1091.1}
[568.2 to 947.0]
—
38.8 to 64.7
{395.6 to 659.8}
[343.4 to 572.6]
38.2 to 63.7
{389.5 to 649.6}
[338.1 to 563.8]
31.5 to 52.4
{321.2 to 534.3}
[278.8 to 463.8]
―
63.7 to 106.2
{649.6 to 1082.9}
[563.8 to 939.9]
100 (4.0)
36.0 to 59.9
{367.1 to 610.8}
[318.6 to 530.2]
36.3 to 60.4
{370.2 to 615.9}
[321.3 to 534.6]
—
44.3 to 73.8
{451.7 to 752.6}
[392.1 to 653.2]
43.6 to 72.7
{444.6 to 741.3}
[385.9 to 643.4]
36.0 to 59.9
{367.1 to 610.8}
[318.6 to 530.2]
―
73.0 to 121.6
{744.4 to 1240.0}
[646.1 to 1076.3]
150 (6.0)
75.5 to 125.9
{769.9 to 1283.8}
[668.2 to 1114.3]
74.4 to 123.9
{758.7 to 1263.4}
[658.5 to 1096.6]
—
53.4 to 89.1
{544.5 to 908.6}
[472.6 to 788.6]
48.8 to 81.3
{497.6 to 829.0}
[431.9 to 719.6]
75.5 to 125.9
{769.9 to 1283.8}
[668.2 to 1114.3]
―
82.3 to 137.1
{839.2 to 1398.0}
[728.4 to 1213.4]
200 (8.0)
72.9 to 121.6
{743.4 to 1240.0}
[645.2 to 1076.3]
109.1 to 181.8
{1112.5 to 1853.8}
[965.6 to 1609.1]
110.9 to 184.9
{1130.9 to 1885.5}
[981.5 to 1636.5]
79.0 to 131.6
{805.6 to 1341.9}
[699.2 to 1164.8]
80.0 to 133.3
{815.8 to 1359.3}
[708.1 to 1179.8]
72.9 to 121.6
{743.4 to 1240.0}
[645.2 to 1076.3]
―
89.7 to 149.5
{914.7 to 1524.5}
[793.9 to 1323.2]
Unit:
N-m
{kgf-cm}
[in-lbf]
Unit:
N-m
{kgf-cm}
[in-lbf]