Madas M16/RM N.C. Manual De Instrucciones página 12

3.2 - INSTALLATION (see example in 3.4)
Threaded devices:
• Assemble the device by screwing it, with the due seals, onto the plant with pipes and/or fittings whose threads are
consistent with the connection being attached;
• Do not use the coil (1) as a lever to help you screw it on, only use the specific tool;
• The arrow, shown on the body (8) of the device, needs to be pointing towards the application;
Flanged devices:
• 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 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" pattern (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);
• Tighten each nut and bolt again clockwise at least once, until the maximum torque has been achieved uniformly;
• Common procedures (threaded and flanged devices):
• The device can also be installed vertically without affecting correct operation. It cannot be put in upside
down (with the cover (5) 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 expansion;
• If the device is to be installed in a ramp, it is the installer's responsibility to provide suitable or correctly sized supports
to hold and secure the assembly. Never, for any reason whatsoever, leave the weight of the ramp only on the connections
(threaded or flanged) 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 (2), unscrew and remove the central screw (3). Use the designated cable terminals (see figures
below). NOTE: Connector wiring operations (2) must be carried out taking care to ensure the product's IP65 rating;
• Wire the connector (2) with 3x0.75mm² cable for external Ø 6.2 to 8.1 mm. The cable 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 (2) to the coil (1), tightening (recommended tightening torque 0.4 N.m ± 10%) the centre screw (3);
• The valve needs to be connected to earth either through the pipe or through other means (e.g. cable jumpers).
Madas Technical Manual - 2|2.1b - REV. 0 of 10
Diameter DN 32
Max. torque (N.m) 50
th May 2018
11
DN 40 DN 50
50 50
M16/RM N.C.