Proline Promag 55 FOUNDATION Fieldbus
Installation
Hauser
23
Screw tightening torques
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 screws will deform the sealing faces or damage the seals.
• The tightening torques listed below apply only to pipes not subjected to tensile stress.
Promag S
Nominal
diameter
EN (DIN)
Pressure
rating
Screws
Max. tightening torque [Nm]
[mm]
[bar]
Natural
rubber
Polyurethane
PTFE
PFA
Hard rubber
15
PN 40
4 × M 12
–
–
11
–
–
25
PN 40
4 × M 12
–
15
26
20
–
32
PN 40
4 × M 16
–
24
41
35
–
40
PN 40
4 × M 16
–
31
52
47
–
50
PN 40
4 × M 16
–
40
65
59
–
65 *
PN 16
8 × M 16
11
27
43
40
32
65
PN 40
8 × M 16
–
27
43
40
32
80
PN 16
8 × M 16
13
34
53
48
40
80
PN 40
8 × M 16
–
34
53
48
40
100
PN 16
8 × M 16
14
36
57
51
43
100
PN 40
8 × M 20
–
50
78
70
59
125
PN 16
8 × M 16
19
48
75
67
56
125
PN 40
8 × M 24
–
71
111
99
83
150
PN 16
8 × M 20
27
63
99
85
74
150
PN 40
8 × M 24
–
88
136
120
104
200
PN 10
8 × M 20
35
91
141
101
106
200
PN 16
12 × M 20
28
61
94
67
70
200
PN 25
12 × M 24
–
92
138
105
104
250
PN 10
12 × M 20
27
71
110
–
82
250
PN 16
12 × M 24
48
85
131
–
98
250
PN 25
12 × M 27
–
134
200
–
150
300
PN 10
12 × M 20
34
81
125
–
94
300
PN 16
12 × M 24
67
118
179
–
134
300
PN 25
16 × M 27
–
138
204
–
153
350
PN 10
16 × M 20
47
118
188
–
112
350
PN 16
16 × M 24
68
165
254
–
152
350
PN 25
16 × M 30
–
252
380
–
227
400
PN 10
16 × M 24
65
167
260
–
151
400
PN 16
16 × M 27
95
215
330
–
193
400
PN 25
16 × M 33
–
326
488
–
289
450
PN 10
20 × M 24
59
133
235
–
153
450
PN 16
20 × M 27
96
196
300
–
198
450
PN 25
20 × M 33
–
253
385
–
256
500
PN 10
20 × M 24
66
171
265
–
155
500
PN 16
20 × M 30
132
300
448
–
275