Norgren VS18 Series Valve Advantage - Manual (Page 19)

VS18/VS26 MAINTENANCE & INSTRUCTION BOOKLET
4. Lastly, mount the valves, sandwich plates, blanking plates and/or intermediate
supply/exhaust modules.
Valves:
1. Ensure valve body gasket is fitted on the bottom of the valve. Place valve onto the
modular sub-base aligned to the interface. Use plug-in connection as positioning point.
2. VS26 only: Orientate straight flange of the U-washers towards the outer edge of the
valve.
3. Tighten the valve mounting screws (two per valve) with the specified torque. If you are
using a power screwdriver, consider the maximum speed allowed.
Screw Type
(thread) Valve
seize Tightening
torque in Nm Tightening
torque in Ibs Max. screw driver
speed in r.p.m.
12 M3x40 VS18 1.1 – 1.5 9.73 – 13.27 1100
12 M4x42 VS26 1.2 – 1.6 10.62 – 14.16 1100
VS2672926-KG00E_05/07 Page 19/97