Madas RG/2MBHZ, Руководство пользователя

Страница: 13 / 56

IT
EN
FR
ES
13
Madas Technical Manual - 5|5.3b - REV. 0 of 2
th
Sep 2019 RG/2MCSH - RG/2MBHZ
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 shut offs closing time : < 1 s
• Accuracy class : AC=10 - (Pa ± 10%)
• Overpressure shut off accuracy group : AG=10 (only 2MBH...models)
• Closing pressure class : SG=10
• Relief valve : tested according to the indications in EN 334
• Vent connection : G 1/4
• Mechanical strength : Group 2 (according to EN 13611)
• Rp Threaded connections : (DN 32 - DN 40 - DN 50) according to EN 10226
• Flanged connections compatible with PN 16 flanges : (DN 32 - DN 40 - DN 50 - DN 65 - DN 80 - DN 100)
ISO 7005 / EN 1092-1
• NPT threaded connections 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 ÷ 47)
RG/2MCSH: Pressure regulator without filter - without safety shut offs
RG/2MBHZ: Pressure regulator with filter - with safety shut-offs
3.0 - COMMISSIONING THE DEVICE
3.1 - OPERATIONS PRIOR TO INSTALLATION
• The gas upstream of the device must be shut off prior to installation;
• Make sure that the line pressure
DOES NOT EXCEED the maximum pressure stated on the product label;
• Protective caps (if any) must be removed prior to installation;
• The pipes and the inside of the device must be clear of any foreign bodies;
• IMPORTANT:
• to prevent 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 shutoff 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 fitted 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;