Table 3.3.4 Wafer Type Tightening Torque Values for Metal Piping
Tightening torque values for PFA/Polyurethane Rubber lining type (N-m / {kgf-cm} / [in-lbf])
Gasket types within
owtube
No gasket (standard)
Gasket types for user’s
ange
Non-asbestosbergasket,PTFE-sheathednon-asbestosgasket(optionalcodesBCFandBSF),ortheequivalentinhardness
Flange
ratings
Size
mm (inch)
JIS 10K
ANSI Class 150
DIN PN10
JIS 20K
ANSI Class 300
DIN PN16
DIN PN40 JPI Class 150
2.5 (0.1)
7.2 to 8.4
{73.42 to 85.66}
[63.72 to 74.35]
7.3 to 8.4
{74.44 to 85.66}
[64.61 to 74.35]
7.6 to 8.4
{77.5 to 85.66}
[67.26 to 74.35]
7.9 to 12.7
{80.8 to 129.9}
[70.1 to 112.7]
5 (0.2)
7.2 to 8.4
{73.42 to 85.66}
[63.72 to 74.35]
7.3 to 8.4
{74.44 to 85.66}
[64.61 to 74.35]
7.6 to 8.4
{77.5 to 85.66}
[67.26 to 74.35]
7.9 to 12.7
{80.8 to 129.9}
[70.1 to 112.7]
10 (0.4)
7.2 to 8.4
{73.42 to 85.66}
[63.72 to 74.35]
7.3 to 8.4
{74.44 to 85.66}
[64.61 to 74.35]
7.6 to 8.4
{77.5 to 85.66}
[67.26 to 74.35]
7.9 to 12.7
{80.8 to 129.9}
[70.1 to 112.7]
15 (0.5)
7.2 to 8.4
{73.42 to 85.66}
[63.72 to 74.35]
7.3 to 8.4
{74.44 to 85.66}
[64.61 to 74.35]
7.6 to 8.4
{77.5 to 85.66}
[67.26 to 74.35]
7.9 to 12.7
{80.8 to 129.9}
[70.1 to 112.7]
25 (1.0)
23.5 to 27.3
{239.6 to 278.4}
[208 to 241.6]
23.7 to 27.3
{241.7 to 278.4}
[209.8 to 241.6]
22.3 to 27.3
{227.4 to 278.4}
[197.4 to 241.6]
19.6 to 21.8
{200.0 to 222.1}
[173.5 to 192.6]
32 (1.25)
26.2 to 30.5
{267.2 to 311}
[231.9 to 269.9]
26.6 to 30.5
{271.2 to 311}
[235.4 to 269.9]
28.0 to 30.5
{285.5 to 311}
[247.8 to 269.9]
―
40 (1.5)
36.2 to 42.4
{369.1 to 432.4}
[320.4 to 375.3]
36.9 to 42.4
{376.3 to 432.4}
[326.6 to 375.3]
39.1 to 42.4
{398.7 to 432.4}
[346.1 to 375.3]
30.1 to 33.4
{307.2 to 341.3}
[266.5 to 296.0]
Tightening torque values for Ceramics lining type (N-m / {kgf-cm} / [in-lbf])
Gasket types within
owtube
Fluororesinwithceramicllers(Valqua#7020)(standard)gasket,oruororesinwithcarbongasket(optionalcodeGF)
Gasket types for user’s
ange
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
15 (0.5)
6.8 to 11.0
{69.3 to 112.2}
[60.2 to 97.4]
6.8 to 11.0
{69.3 to 112.2}
[60.2 to 97.4]
6.6 to 11.0
{67.3 to 112.2}
[58.4 to 97.4]
25 (1.0)
18.9 to 24.5
{192.7 to 249.8}
[167.3 to 216.8]
19.1 to 24.5
{194.8 to 249.8}
[169.0 to 216.8]
14.7 to 24.5
{149.9 to 249.8}
[130.1 to 216.8]
40 (1.5)
34.5 to 45.7
{351.8 to 466.0}
[305.4 to 404.5]
41.7 to 57.4
{425.2 to 585.3}
[369.1 to 508.0]
34.5 to 57.4
{351.8 to 585.3}
[305.4 to 508.0]
Table 3.3.5 Wafer Type Tightening Torque Values for PVC Piping
Tightening torque values for PFA lining type (N-m / {kgf-cm} / [in-lbf])
Gasket types within
owtube
Fluororubber gasket (optional codes GA, GC, and GD)
Gasket types for user’s
ange
Fluororubber gasket, chloroprene rubber gasket (optional codes BSC and BCC), 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 JPI Class 150
2.5 (0.1)
1.5 to 2.5
{15.3 to 25.49}
[13.28 to 22.13]
1.5 to 2.5
{15.3 to 25.49}
[13.28 to 22.13]
1.5 to 2.4
{15.3 to 24.47}
[13.28 to 21.24]
1.6 to 2.6
{16.4 to 26.5}
[14.2 to 23.0]
5 (0.2)
1.5 to 2.5
{15.3 to 25.49}
[13.28 to 22.13]
1.5 to 2.5
{15.3 to 25.49}
[13.28 to 22.13]
1.5 to 2.4
{15.3 to 24.47}
[13.28 to 21.24]
1.6 to 2.6
{16.4 to 26.5}
[14.2 to 23.0]
10 (0.4)
1.5 to 2.5
{15.3 to 25.49}
[13.28 to 22.13]
1.5 to 2.5
{15.3 to 25.49}
[13.28 to 22.13]
1.5 to 2.4
{15.3 to 24.47}
[13.28 to 21.24]
1.6 to 2.6
{16.4 to 26.5}
[14.2 to 23.0]
15 (0.5)
1.5 to 2.5
{15.3 to 25.49}
[13.28 to 22.13]
1.5 to 2.5
{15.3 to 25.49}
[13.28 to 22.13]
1.5 to 2.4
{15.3 to 24.47}
[13.28 to 21.24]
1.6 to 2.6
{16.4 to 26.5}
[14.2 to 23.0]
25 (1.0)
4.9 to 8.1
{49.97 to 82.6}
[43.37 to 71.69]
5.0 to 8.3
{50.99 to84.64 }
[44.25 to 73.46]
4.3 to 7.2
{43.85 to 73.42}
[38.06 to 63.72]
4.0 to 6.6
{41.3 to 67.0}
[35.8 to 58.1]
32 (1.25)
5.5 to 9.2
{56.08 to 93.81}
[48.68 to 81.43]
5.7 to 9.5
{58.12 to 96.87}
[50.45 to 84.08]
5.4 to 8.9
{55.06 to 90.75}
[47.79 to 78.77]
―
40 (1.5)
7.7 to 12.9
{78.52 to 131.5}
[68.15 to 114.2]
8.1 to 13.4
{82.6 to 136.6}
[71.69 to 118.6]
7.5 to 12.5
{76.48 to 127.5}
[66.38 to 110.6]
6.4 to 10.4
{65.4 to 106.6}
[56.7 to 92.4]
Tightening torque values for Ceramics lining type (N-m / {kgf-cm} / [in-lbf])
Gasket types within
owtube
Fluororubber gasket (optional codes GA, GC, and GD)
Gasket types for user’s
ange
Fluororubber gasket, chloroprene rubber gasket (optional codes BSC and BCC), 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
15 (0.5)
0.8 to 1.4
{8.2 to 14.3}
[7.1 to 12.4]
0.8 to 1.4
{8.2 to 14.3}
[7.1 to 12.4]
0.8 to 1.4
{8.2 to 14.3}
[7.1 to 12.4]
25 (1.0)
2.3 to 3.1
{23.5 to 31.6}
[20.4 to 27.4]
2.4 to 3.1
{24.5 to 31.6}
[21.2 to 27.4]
1.9 to 3.1
{19.4to 31.6}
[16.8 to 27.4]
40 (1.5)
4.4 to 6.0
{44.9 to 61.2}
[38.9 to 53.1]
5.2 to 7.3
{53.0 to 74.4}
[46.0 to 64.6]
4.4 to 7.3
{44.9 to 74.4}
[38.9 to 64.6]