wT 2858/02
Page 11
7.3
Tightening Torques and Width Across Flats
Nominal width mid-body section
15 20 25 32 40 50 65 80 100 125
Tightening torque stuffing box nut (Nm)
5
15 15 25 25 20 20 40
40
40
Tightening torque body screws Xc (Nm)
9
25 25 40 55 75 70 100 130 145
Tightening torque body screws VIII (Nm)
9
20 20 30 40 60 60 80 110 120
Tightening torque body screws III (Nm)
9
20 20 30 40 60 60 70 110 120
AF hexagon screw stop
8
10 10 13 13 13 13 19
19
19
AF body screws KHA-FL,SL,SK,G
10 13 13 17 19 22 19 24
24
24
AF body screws KHA-FK-VIII, Xc
22 22 24
AF body screws KHA-FK-III
19 22 22
Tolerance for stuffing box nut tightening 10 %
Tolerance for body screw tightening torque
10 %
7.4
Table of Weights
This table features a weight estimate of a PN 40 valve with flange connections (full bore).
Nominal size
Weight
10
2.3 kg
15
2.4 kg
20
3.7 kg
25
4.7 kg
32
7.4 kg
40
9.8 kg
50
14.5 kg
65
20.6 kg
80
31.6 kg
100
44.8 kg
125
75.7 kg
