5.0 INSTALLATION AND FIXING
VL
2
VAL.130.--.M.EN Issue: A1
09.16
35
The installer will have to provide for interfacing the equipment with the necessary controls for: start/stop, emer-
gency stop, reset after an emergency stop, in compliance with the regulatory standards in force.
In the testing phase, ensure that the motor rotation corresponds to the direction of rotation shown by the arrow
applied on the motor.
If the rotation is inverse, invert the cable connections in the terminal board.
Disconnect the power supply before every intervention and use suitable devices to prevent accidental recon-
nection of the valve.
Before operating the valve ’s actuator each time, ensure the protection devices are present and working prop-
erly.
During these checks make sure the sliding of the valve blade cannot harm any person or damage the valve.
The installer must connect the valve to the grounding system of the plant.
5.8 Compressed air connection
None of the basic utilities require the use of compressed air.
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properly and provide the required protection for sudden detachment of the piping.
COMPRESSED AIR FEATURES
The connection of the compressed air could cause the opening or closing of the valve; it is therefore necessary
to make sure, prior to connecting it, the valve is in suitable safety conditions.
The compressed air supplied to the pneumatic components must have special features:
1)
Filtered: free of scum which may damage the components internally.
2)
De-moist: use of a condensate tap is advisable.
ATTENTION
Before connecting the compressed air to the utilities:
- drain the piping;
- check the pneumatic components to see if they require lubrication;
- if pneumatic actuators are used, it is the installer’s responsibility to make sure the compressed air pipes are
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- check the pneumatic pipes to make sure they are tightened properly.
The related actuator operation manuals are available on the website www.wamgroup.com.
