Richter NKS-N Series, Инструкция по установке и эксплуатации

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Series NKS-N, NKSP-N
Page 4
9520-021-en
Revision 17
TM 10477 Edition 05/2022
Sign for transport securing device for actuator
1.2 Tightening torques
All screws greased, tighten in diametrically
opposite sequence!
The tightening torques for pipe screws and body
screws mentioned must not be exceeded. For an
exception, see
Section 7 , Flange connection
valve/pipe is leaking.
The following tightening torques are recommended.
Packing screws
screws Tightening torque
[ISO/DIN] [Nm] [in-lbs]
2 x M8 3 27
Pipe screws, flanges to ISO/DIN
Flange
Nominal size
screws
Tightening
torque
[mm] [ISO/DIN] [Nm]
50
4 x M16 30
80
8 x M16 25
100
8 x M16 30
150
8 x M20 55
200
8 x M20 75
250
12 x M20 65
300
12 x M20 75
350
16 x M20 75
Pipe screws , flanges to ASME Class 150 or flanges
ISO/DIN drilled to ASME Class 150
Flange
Nominal size
screws
Tightening
torque
[mm] [inch] [ASME] [Nm] [in-lbs]
50
2“ 4 x ⅝“
30 266
80
3“ 8 x 5/8“
25 221
100
4“ 8 x 5/8“
30 266
150
6“ 8 x ¾“
55 487
200
8“ 8 x ¾“
75 664
250
10“ 12 x 7/8“
65 575
300
12“ 12 x 7/8“
75 664
350
14“ 12 x 1“
75 664
Hex. socket screw 914/1 for sandwich body
Nominal size
Hex.
socket
screws
Tightening
torque
[mm] [inch] [ISO/DIN] [Nm] [in-lbs}
50
2“
2 x M10 30 266
80
3“
2 x M12 50 442
100
4“
2 x M12 50 442
150
6“
2 x M16 100 885
200
8“
2 x M16 100 885
250
10“
2 x M16 100 885
300
12“
2 x M20 200 1770
350
14“
4 x M16 100 885
Hex. socket screws are leaded. See Section 6.2 and
8.8.1 .
1.3 Weights (approx. kg)
Nom. Size open Lever Gear
[
mm]
[
inch] bare shaft
50
2“
3.5 0.7 4.0
80
3“
4.5 0.7 4.0
100
4“
6.0 0.7 4.0
150
6“
11.0 3.7 4.5
200
8“
15.0 3.7 4.5
250
10“
25.0
–
9.5
300
12“
33.0
–
9.5
350
14“
47.0
–
15.0
Actuator see data of the manufacturer