IT
EN
FR ES
13
Madas Technical Manual - 5|5.2a - REV. 0 of
th
Apr 2019 RG/2MCS - RG/2MBZ
2.0 TECHNICAL DATA
• Use : non-aggressive gases of the three families (dry gases)
• Ambient temperature (TS) : -20 ÷ +60°C
• Minimum operating pressure : 0.5 bar
• Max operating pressure : 5 bar
• Allowable pressure PS : 5 bar
• Safety lock closing time : < 1 s
• Accuracy class : AC=10 - (Pa ± 10%)
• Overpressure shut off accuracy unit : AG=10
• Closing pressure class : SG=30
• Relief valve : tested according to the indications in EN 334
• Connecting the vent : G 3/8
• Mechanical strength : Group 2 (according to EN 13611)
• Rp threaded connections : (DN 32 - DN 40 - DN 50) according to EN 10226
• Flanged connections that can couple with PN 16 flanges : (DN 32 - DN 40 - DN 50) ISO 7005 / EN 1092-1
• NPT threaded or ANSI 150 flanged connections : on request
• In compliance with : PED Directive 2014/68/EU - ATEX Directive 2014/34/EU
2.1 MODEL IDENTIFICATION (for configurations see page 45 - 50)
RG/2MCS: Pressure regulator - without safety shut-offs
RG/2MBZ: Pressure regulator - with safety shut-offs
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);
• install manual gas closing devices (e.g. ball valves) upstream and downstream of the regulator to protect it from any
pipe leak test;
• do consider that if the regulator is equipped with a relief valve, the latter is suitable for small quantities of gas to be
discharged and CANNOT replace the relief valve installed separately as a specific device;
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