Madas AGP/RC Serie Manual Del Usuario página 13

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 neck of the bottom cover (6) as a lever to help you screw it on, but only use the specific tool;
• The arrow, shown on the body (16) 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 too much space in between, do not try to reduce said gap by excessively tightening
the bolts of the device;
• The arrow, shown on the body (16) 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 the tightening stage;
• 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 regulator must be installed downstream of a safety solenoid valve, with the arrow on the body (16) pointing towards the
application and in a horizontal position, with the bottom cover (6) facing upwards (see figure below and installation example
in 3.4).
• 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, after the installation check the tightness of the system, avoiding to subject the membrane of the regulator
(therefore, the downstream pipe section) to a pressure higher than 300 mbar;
Madas Technical Manual - 4|4.5 - REV. 0 of 10
Diameter
DN 25
Max. torque (N.m)
30
13
Oct 2018
th
DN 32 DN 40 DN 50 DN 65
50 50 50
DN 80 DN 100
50 50 80
AGP/RC - AG/RC