Endress+Hauser Promag 53 - Page 34

3 Installation Promag 53 PROFIBUS-DP/-PA
34 Endress+Hauser
Tightening torques for threaded fasteners (Promag P)
Note the following points:
• The tightening torques listed below are for lubricated threads only.
• Always tighten threaded fasteners uniformly and in diagonally opposite sequence.
• Overtightening the fasteners will deform the sealing faces or damage the seals.
• The tightening torques listed below apply only to pipes not subjected to tensile stress.
Promag P
Nominal diameter
DIN
Pressure rating
Threaded
fasteners
Max. tightening torque [Nm]
[mm] [bar] PTFE PFA
15 PN 40 4 x M 12 11
−
25 PN 40 4 x M 12 26 19
32 PN 40 4 x M 16 41 33
40 PN 40 4 x M 16 52 42
50 PN 40 4 x M 16 65 55
65 PN 16 4 x M 16 87 73
65 PN 40 8 x M 16 43 36
80 PN 16 8 x M 16 53 44
80 PN 40 8 x M 16 53 44
100 PN 16 8 x M 16 57 45
100 PN 40 8 x M 20 78 63
125 PN 16 8 x M 16 75 59
125 PN 40 8 x M 24 111 87
150 PN 16 8 x M 20 99 73
150 PN 40 8 x M 24 136 104
200 PN 10 8 x M 20 141 100
200 PN 16 12 x M 20 94 67
200 PN 25 12 x M 24 138 104
250 PN 10 12 x M 20 110
−
250 PN 16 12 x M 24 131 −
250 PN 25 12 x M 27 200 −
300 PN 10 12 x M 20 125 −
300 PN 16 12 x M 24 179 −
300 PN 25 16 x M 27 204 −
350 PN 10 16 x M 20 188 −
350 PN 16 16 x M 24 254 −
350 PN 25 16 x M 30 380 −
400 PN 10 16 x M 24 260 −
400 PN 16 16 x M 27 330 −
400 PN 25 16 x M 33 488 −
450 PN 10 20 x M 24 235 −
450 PN 16 20 x M 27 300 −
450 PN 25 20 x M 33 385 −
500 PN 10 20 x M 24 265 −
500 PN 16 20 x M 30 448 −