COMAC CAL FLOW 38 User Manual

Manual FLOW 38 Page 12 (total 54) COMAC CAL s.r.o.
Tightening torques
It is absolutely necessary to tighten the bolts and nuts equally by alternating sides and in the order
shown in figure applying the maximum torque according to the table.
If the bolts are tightened too much during the installation of pipework components, deformation of the
sealing surface may occur. In consequence, the torque values indicated in the table are used as a
guidance for tightening the screws and bolts.
Table with tightening torques for screws/bolts (EN 1092-1):
Diameter
nominal
PN 10
PN 16
DN
Screws
Tightening torque [Nm]
Screws
Screws
Rubber
PTFE,PFA
ETFE, PVDF
Rubber
PTFE,PFA
ETFE, PVDF
10
4 x M12
10
15
4 x M12
10
15
15
15
20
15
20
20
20
25
20
25
25
20
25
20
25
32
4 x M16
20
25
4 x M16
20
35
40
20
25
20
35
50
20
45
20
45
65
20
46
20
46
80
8 x M16
20
48
8 x M16
20
48
100
20
50
20
50
125
20
80
20
65
150
8 x M20
24
90
8 x M20
27
90
200
27
115
12 x M20
35
80
250
12 x M20
35
95
12 x M24
55
100
300
50
100
80
110
350
16 x M20
60
70
16 x M24
95
105
400
16 x M24
75
120
16 x M27
140
150
500
20 x M24
100
150
20 x M30
250
230
600
20 x M27
165
240
20 x M30
400
360

COMAC CAL FLOW 38 Specifications

General

Brand	COMAC CAL
Model	FLOW 38
Category	Measuring Instruments
Language	English