
VS18/VS26
MAINTENANCE & INSTRUCTION BOOKLET
7. VS26 only: Orientate straight flange of the U-washers towards the outer edge of the valve.
8. Tighten valve mounting screws (two per valve) with the specified torque. If you are using a
power screwdriver consider the maximum speed allowed.
9. Repeat steps 6 and 7 if you expand the valve island with more than one station.
E
D
C
Screw
Type
(thread)
Valve
seize
Tightening
torque in Nm
Tightening
torque in Ibs
Max. screw driver
speed in r.p.m.
11
M3x10
VS18
0.8 – 0.9
7.08 – 7.96
1100
11
M4x12
VS26
1.0 – 1.1
8.85 – 9.73
1100
12
M3x40
VS18
1.1 – 1.5
9.73 – 13.27
1100
12
M4x42
VS26
1.2 – 1.6
10.62 – 14.16 1100
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