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Madas Technical Manual - 3|3.2cX - REV. 0 of st Aug 2019 M16/RMX N.A.
IT EN FR ES
3.2 INSTALLATION (see example in 3.4)
•Assemble the device by flanging it, with the due seals, onto the plant with pipes whose flanges are consistent with the
connection being attached. The gaskets must be free from defects and must be centred between the flanges;
•If, after installing the gaskets, there is still an excessive space in between, do not try to reduce the said gap by excessively
tightening the bolts of the device;
•The arrow, shown on the body (8) of the device, needs to be pointing towards the application;
•Insert the relative washers inside the bolts in order to prevent damage to the flanges during tightening;When tightening, be
careful not to “pinch” or damage the gasket;
•Tighten the nuts or bolts gradually, in a “cross” order (see the example below);
•Tighten them, first by 30%, then by 60%, and finally 100% of the maximum torque
(see the table below according to EN 13611);
Diameter DN 65 DN 80 DN 100 DN 125 DN 150
Max. torque (N.m) 50 50 80 160 160
•Tighten each nut and bolt again clockwise at least once, until the maximum torque has been achieved uniformly;
•The device can also be installed vertically without prejudicing the correct operation. It cannot be put in
upside down (with the reset knob (16) pointing downwards);
•During installation, avoid debris or metal residues from getting into the device;
•To guarantee mechanical tension-free assembly, we recommend using compensating joints, which
also adjust to the pipe’s thermal dilation;
•If the device is to be installed in a ramp, it is the installer’s responsibility to provide suitable supports or correctly sized
supports, to properly hold and secure the assembly. Never, for any reason whatsoever, leave the weight of the ramp only on
the connections (flanged or threaded) of the individual devices;
•In any case, following installation, check the tightness of the plant;
•ATTENTION: The coil is provided with a 3m long power supply cable (2). This cable CANNOT be replaced with a
different one. In the event of damage, the part (coil) must be disposed of and replaced with an identical new one; Any repair
(if possible) can only be carried out by the manufacturer;
•In the dangerous zone, wire the ends of the cable with explosion-proof approved equipment (E.g. Terminal box with “E”
protection or increased safety according to EN 60079-7) using the special wire terminals;
•Cable colours
Phase : brown (alternatively black or grey)
Neutral : blue
: yellow/green
•Make sure the connection cables are inserted correctly into the electrical terminal, ensuring they are not crushed and/or
damaged in order to prevent short circuits and interferences.
•Provide a fixed installation ensuring adequate protection against mechanical stress;
•The valve needs to be connected to earth either through the pipe or through other means (e.g. cable jumpers).
Special conditions for safe use
The “X” symbol (positioned at the end of the protection mode) indicates particular conditions of use:
• Clean the product regularly to prevent dust from building up;
• The valve must be installed in places at a low risk of mechanical impact;
• Minimum bending radius of the cable = 4 Ø; minimum installation temperature -35°C;
• The equipment must be protected against the effect of lightning discharges;
• Sparks caused by impact or friction on light metals can cause sources of ignition, therefore tools with corroded surfaces
must not be used under any circumstances (e.g. for adjustments, maintenance, etc.);
• Protect the product from impact or friction caused by other objects;
• Periodically check the integrity of the dissipative surface treatment of the coil and connector;
• Do not install in environments where the product is in direct contact with corrosive gases, chemicals, salt water, water or
steam (C3 or medium degree of environmental pollution). Contact the technical department for any other application, for
the compatibility analysis;