Hawle HAWIDO 1400, Manual

Page: 28 / 30

-25-
E. Annex
1. Torque table
When assembling the main valve and the pilot valve, all bolts are checked with a torque wrench according to
the following list
. G rease the bolts before mounting !
Diameter Hexagon bolt
Strenght class
Tightening torque
M
ai
n
va
lve
DN M
1
) Reference Max.
2
)
40 - 50 M 8
A4 / 80
22 Nm 25 Nm
65 - 80 M 10 47 Nm 50 Nm
100 M 12 84 Nm 87 Nm
125 - 150 M 16 172 Nm 216 Nm
200 M 20 285 Nm 423 Nm
250 M 20 285 Nm 423 Nm
300 M 20 380 Nm 423 Nm
Pi
lo
t
va
lve
Typ Hexagon
Strenght class
Tightening torque
Socket bolt
1
) Reference Max.
DRV / DAV
M 6 A2 / A4 / 70 8 Nm 8,5 Nm
MBV / RBS
Control Hexagon bolt
Strenght class
Tightening torque
valve M
1
) Reference Max.
NAZ M 6 A2 / A4 / 70 8 Nm 8,5 Nm
(Torque for bolts with term in head A2)
M
ai
n
va
lve
Diameter Hexagon bolt
Strenght class
Tightening torque
DN M
1
) Reference Max.
40 - 50 M 8
A2 / 70
17 Nm 19 Nm
65 M 10 33 Nm 36 Nm
80 M 10 40 Nm 40 Nm
100 M 12 70 Nm 72 Nm
125 - 150 M 16 172 Nm 172 Nm
200 M 20 280 Nm 285 Nm
250 M 20 280 Nm 285 Nm
300 M 20 235 Nm 240 Nm
Note:
1
) = Term on bolt head A2
– 70 or A4 – 80!
2
) = Maximum permissible torque according strength analysis
Bolts according SN EN ISO 4014 und SN EN ISO 4017
Stand: FO 0065, Rev. 12 / 19.12.2017