Madas M16/RMX N.C. Serie Mode D'emploi page 13

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 match up 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 said gap by excessively
tightening the bolts of the device;
• The arrow, shown on the body (5) of the device, needs to be pointing towards the utility;
• 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 (as shown in the lateral figure);
• Tighten them, first by 30%, then by 60%, and finally 100% of the maximum torque
(see the table below according to EN 13611);
Diameter
Max. torque (N.m)
• 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 cover (2) 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 (16). 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 area, 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;
Madas Technical Manual - 2|2.1cX - REV. 0 of 1
DN 65 DN 80 DN 100
50 50 80
Aug 2019
st
DN 125 DN 150 > DN 150
160 160 160
13
M16/RMX N.C.