Technical Data; Model Identification; Commissioning The Device; Important - Madas RG/2MC Notice Technique

2.0 - TECHNICAL DATA

• Use
• Ambient temperature
• Operating pressure range (Pe)
• Accuracy class
• Closing pressure class
• Mechanical resistance
• Rp threaded connections in line
• Rp threaded connections at 90°
• Flanged connections that can couple with
PN 16 flanges
• NPT threaded or ANSI 150 threaded connections : on request
• Filter element (only models FRG/2MC)
• In compliance with
* DN 25 with swivel flanges on request.

2.1 - MODEL IDENTIFICATION

RG/2MC: Pressure regulator for gas without filter
FRG/2MC: Pressure regulator for gas with built-in filter
RG/2MCR: Pressure regulator for gas without filter
FRG/2MCR: Pressure regulator for gas with built-in filter

3.0 - COMMISSIONING THE DEVICE

3.1 - OPERATIONS PRIOR TO INSTALLATION
• It is necessary to close the gas upstream of the device prior to installation;
• Make sure that the line pressure DOES NOT EXCEED the maximum pressure declared on the product label;
• Protective caps (if any) must be removed prior to installation;
• The pipes and inside of the device must be clear of any foreign bodies;
• IMPORTANT: to avoid possible pumping and/or disturbances in the gas flow, a straight pipe section equal to at least 5
DN must be installed (downstream of the regulator).
• IMPORTANT: install manual gas closing devices (e.g. ball valves) upstream and downstream of the regulator to protect
it from any pipe leak test;
If the device is threaded:
• make sure that the pipe thread is not too long, to prevent damaging the body of the device when screwing it on;
If the device is flanged:
• make sure the inlet and outlet counter-flanges are perfectly coaxial and parallel in order to prevent unnecessary
mechanical stress to the body. Also calculate the space to insert the seal gasket;
• With regard to tightening operations, equip yourself with one or two calibrated torque wrenches or other controlled locking
tools;
• The safety regulations on handling loads in force in the country of installation must be complied with. If the device to
be installed exceeds the weight allowed, suitable mechanical equipment and adequate slings must be used. Necessary
precautions must be taken during the handling phases so as not to damage/ruin the external surface of the device.
• If the regulator is not fitted with a filter, it is advisable to install an adequate filter upstream;
• With outdoor installation, it is advisable to install a protective roof to prevent rain from oxidising or damaging parts of the
device.
• According to the plant geometry, check the risk of an explosive mixture arising inside the piping;
• If the regulator is installed near other devices or as part of an assembly, compatibility between the regulator and
these devices must be evaluated beforehand;
• Provide a protection against impacts or accidental contacts if the device is accessible to unqualified personnel.
Madas Technical Manual - 4|4.1e - REV. 0 of 10
: non-aggressive gases of the three families (dry gases)
: -15 ÷ +60 °C
: 1÷2 bar
: AC10 (P2 ± 10%)
: SG30 (P2 + 30%)
: Group 2 (according to EN 13611)
: (DN 15 - DN 20 - DN 25 - DN 32 - DN 40 - DN 50) according to EN 10226
: (DN 15 - DN 20 - DN 25 - DN 32 - DN 40 - DN 50) according to EN 10226
: (DN 25* - DN 32 - DN 40 - DN 50 - DN 65 - DN 80 - DN 100) ISO 7005 / EN 1092-1
: filtering 50µm
: PED Directive 2014/68/EU - ATEX Directive 2014/34/EU
- (connections in line)
- (connections in line)
- (connections at 90° see figure 2 and 4)
- (connections at 90° see figure 2 and 4)
11
May 2018
th
RG/2MC - FRG/2MC