VARISCO JB - Page 69

69
ANNEX 2
TORQUE VALUES
Maximum torque values for ISO metric coarse pitch screw threads, grade 8.8.
According to STANDARD DIN 267 Torque values
Size
Ø screw
Hex
mm
Strength Grade 8.8
Nm
M5 8 6
M6 10 10
M8 13 24
M10 17 50
M12 19 84
M14 22 135
M16 24 205
M18 27 283
M20 30 400
M22 34 532
M24 36 691
M27 41 1010
M30 46 1370
Maximum torque values for nuts and wrenches (fig.1-fig.2; Pos. Nr: 53, 53.2) on covers (fig.1-fig.2; Pos. Nr.: 16, 23, 26).
Size
Ø nut or wrench
Torque values
Nm
M10 25
M12 40
Torque values for delivery flange and suction flange of the pump (21, 10).
BSP thread
Torque values (Nm)
Maximum
1 1/2"-11 90
2"-11 150
69
fig.2
fig.1