Madas M16/RM N.C. Manuel page 12

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;
• Wiring cannot have cables connected directly to the coil. ALWAYS and ONLY use the connector identified by the
manufacturer;
• Before wiring the connector (16), unscrew and remove the central screw (17). Use the proper cable terminals (see figures
below). NOTE: Connector (16) wiring must be do ensuring a product rating of IP65;
• Wire the connector (16) with 3x0.75mm² cable for external Ø 6.2 to 8.1 mm. The cable to be used must be in double sheath,
suitable for outdoor use, with a minimum voltage of 500V and a temperature of at least 90°C;
• Connect terminals 1 and 2 to the power supply and the earth cable to terminal ;
• Secure the connector (16) to the coil (18), tightening (recommended tightening torque 0.4 N.m ± 10%) the centre screw
(17);
• The valve needs to be connected to earth either through the pipe or through other means (ex. cable jumpers).
3.3 - INSTALLATION IN PLACES WHERE THERE IS THE RISK OF EXPLOSION (DIRECTIVE 2014/34/EU)
The solenoid valve is not suitable for use in zones here there is the risk of explosion.
M16/RM N.C.
DN 65 DN 80 DN 100
50 50 80
DN 125 DN 150 > DN 150
160 160 160
12
Madas Technical Manual - 2|2.1c - REV. 0 of 10 May 2018
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