
VS18/VS26
MAINTENANCE & INSTRUCTION BOOKLET
5 I
NSTALLATION AND MAINTENANCE MECHANICAL
5.1 I
NSTALLATION
5.1.1 Tools
VS18:
•
Hexagon wrench key 2mm
•
Hexagon wrench key 2.5mm
•
Socket screw key X10
•
Philips screwdriver size 1
•
Screwdriver size 1
VS26:
•
Hexagon wrench key 3mm
•
Socket screw key X10
•
Philips screwdriver size 1
•
Screwdriver size 1
5.1.2 Tightening
torque
To avoid damaging the product, please make sure that the maximum torque values are not
exceeded. The maximum torques are specified in the particular installation instructions.
Valve mounting screws
The valve mounting screws are pressurised. To prevent leakage through the mounting screws,
screws with blue coated thread are used. The specified torques for the blue coated screws
reduce to standard values after first use of the screws. These screws should not be used more
than five times, as good sealing performance can then not be guaranteed.
VS2672926-KG00E_05/07 Page
15/97