DMS DN 100, Manual, Page: 16 / 32

16
EN
IT
3.2  INSTALLATION (see examples in 3.4)
Threaded devices:
• Assemble the device by screwing it, with the correct seals, onto the plant with pipes and/or fittings whose threads are
consistent with the connection being attached.
• Do not use the coil ( 4 ) as a lever to help you screw it on, only use the specific tool;
• The arrow, shown on the body (
7
) of the device, needs to be pointing towards the application;
Flanged devices:
• Assemble the device by flanging it, with the correct 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 (
7
) 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;
Common procedures (threaded and flanged devices):
• The device can also be installed vertically without prejudicing correct operation. It cannot be put in
upside down (with the coil ( 4 ) 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 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 (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/electronic board
recommended by the manufacturer;
• Wire the terminal board ( 31 ) with a cable 3x1 mm²,
outside Ø between 8.3 and 9.5 mm using the relative
terminals for cables, as shown in the general figure on
the side. The cable to use must have double sheathing,
be suitable for use outdoors, with minimum voltage of
500V, and minimum temperature of 105°C;