Endress+Hauser PROFI BUS Proline Promag 53 PROFIBUS DP Operating Manual page 38

Installation
38
Screw tightening torques (Promag P)
Note the following points:
• The tightening torques listed below are for lubricated threads only.
• Always tighten the screws 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
[mm]
15
25
32
40
50
65 *
65
80
80
100
100
125
125
150
150
200
200
200
250
250
250
300
300
300
350
350
350
400
400
400
450
450
450
500
500
500
EN (DIN) Screws
Pressure rating
[bar]
PN 40 4 x M 12
PN 40 4 x M 12
PN 40 4 x M 16
PN 40 4 x M 16
PN 40 4 x M 16
PN 16 8 x M 16
PN 40 8 x M 16
PN 16 8 x M 16
PN 40 8 x M 16
PN 16 8 x M 16
PN 40 8 x M 20
PN 16 8 x M 16
PN 40 8 x M 24
PN 16 8 x M 20
PN 40 8 x M 24
PN 10 8 x M 20
PN 16 12 x M 20
PN 25 12 x M 24
PN 10 12 x M 20
PN 16 12 x M 24
PN 25 12 x M 27
PN 10 12 x M 20
PN 16 12 x M 24
PN 25 16 x M 27
PN 10 16 x M 20
PN 16 16 x M 24
PN 25 16 x M 30
PN 10 16 x M 24
PN 16 16 x M 27
PN 25 16 x M 33
PN 10 20 x M 24
PN 16 20 x M 27
PN 25 20 x M 33
PN 10 20 x M 24
PN 16 20 x M 30
PN 25 20 x M 33
Proline Promag 53 PROFIBUS DP/PA
Max. tightening torque [Nm]
PTFE
11
26
41
52
65
43
43
53
53
57
78
75
111
99
136
141
94
138
110
131
200
125
179
204
188
254
380
260
330
488
235
300
385
265
448
533
Endress+Hauser
PFA
-
20
35
47
59
40
40
48
48
51
70
67
99
85
120
101
67
105
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-