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• Before making electrical connections, check that the mains voltage corresponds to the power supply voltage indicated on
the product label;
• Disconnect the power supply before proceeding with the wiring;
• Based on the geometry of the system, assess the risk of the formation of an explosive mixture inside the pipeline;
• If the solenoid valve is installed near other equipment or as part of a set, it is necessary to preliminarily assess the
compatibility between the solenoid valve and such equipment;
• Provide protection from shocks or accidental contacts if the solenoid valve is accessible to unqualified personnel.
3.2 - INSTALLATION (see example in 3.4)
• Assemble the device by flanging it, together with the appropriate seals, to the system with pipes whose flanges are consistent
with the connection to be assembled. The gaskets must be free from defects and must be centred between the flanges;
• If the remaining space is excessive when the gaskets are inserted, do not try to fill the gap by over tightening the bolts of
the appliance;
• The arrow, indicated on the body (14) of the appliance, must be directed towards the user;
• Insert the dedicated washers inside the bolts to avoid damage to the flanges during tightening;
• During the tightening phase, be careful not to "pinch" or damage the gasket;
• Tighten the nuts or bolts gradually, following a "cross" pattern (see example below);
• Tighten them, first to 30%, then to 60%, up to 100% of the maximum torque (see table below according to EN 13611);
• Re-tighten each nut or bolt clockwise at least once, until the maximum torque is uniform;
• The device must be installed with the piping horizontal and actuator facing upwards (see figures below);
• During installation, prevent debris or metal residues from penetrating inside the appliance;
• To ensure an assembly free from mechanical tensions, the use of compensating joints is also recommended to compensate
for the thermal expansion of the pipeline;
• If the appliance is to be installed in a ramp, it is the installer's responsibility to provide adequate supports or retaining
elements, correctly sized, to support and secure the assembly. Never and for any reason leave the weight of the ramp only
on the connections (threaded or flanged) of the individual devices;
• In any case, after installation, check the tightness of the system;
• Wiring with cables connected directly to the actuator is not permitted. ALWAYS use ONLY the connector indicated or
supplied by the manufacturer;
• Before wiring the connector (23 or 25), completely unscrew and remove the central screw (22 or 24). Use the appropriate
cable terminals (see figures below). NOTE: The wiring operations of the connector (23 or 25) must be carried out being
sure to guarantee the IP65 degree of the product;
EVF-1-3-6 - EVR-1-3-6
Diameter
> DN 150
Max torque (N.m)
160
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Madas Technical Manual - 1|1.5e - REV. 1 of 18
Oct 2023
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