User Manual

Series PSG/F, TSG/F Page 4
9540-050-en Revision 02
TM 7476 Edition 03/2009
1.2 Tightening torques
All screws greased, tighten in diametrically
o
pposite sequence!
The tightening torques for pipe screws and body
screws mentioned must not be exceeded. For an
exception, see Section 8
, Flange connection valve /
pipe is leaking.
The following tightening torques are recommended.
Pipe screws
, flanges to ISO/DIN
Flange nom.
size
Screws Tightening
torque
[mm] [ISO/DIN] [Nm]
25 4 x M12 10
40 4 x M16 20
50 4 x M16 26
65 4 x M16 40
80 8 x M16 25
100 8 x M16 35
150 8 x M20 45
200 12 x M20 100
Pipe screws, flanges to ASME Class 150 or flanges
ISO/DIN drilled to ASME Class 150
Flange nom.
size
Screws Tightening
torque
[mm] [inch] [ASME] [Nm] [in-lbs]
25 1" 4 x ½“ 8 70
40 1½" 4 x ½“ 15 135
50 2" 4 x I“ 25 220
65 2½" 4 x I““ 30 265
80 3" 4 x I“ 45 400
100 4" 8 x I“ 35 310
150 6" 8 x ¾“ 80 710
200 8" 8 x ¾“ 115 1020
Cover screws Seal in the direct power connection
See Fig. 1
Nom. size Screws Tightening torque
[mm] [inch] [ISO/DIN] [Nm] [in-lbs]
25 1"
8 x M12 30 265
40 1½"
8 x M16 50 443
50 2"
8 x M16 50 443
65 2½"
8 x M16 50 443
80 3"
16 x M16 50 443
100 4"
16 x M16 50 443
150 6"
16 x M16 50 443
200 8"
16 x M16 50 443
… Fig. 1
Option :
Cover screws Seal in the bypass connection
See Fig. 2
Nom. size Screws Tightening torque
[mm] [inch] [ISO/DIN] [Nm] [in-lbs]
25 1"
8 x M12 30 443
40 1½"
8 x M16 50 708
50 2"
8 x M16 50 708
65 2½"
8 x M16 50 708
80 3"
16 x M16 50 708
100 4"
16 x M16 50 443
150 6"
16 x M16 50 443
200 8"
16 x M16 50 443
Fig. 2