Technical Data; Commissioning The Device; Operations Prior To Installation - Madas FRG-RG/2MCSH Manual De Instrucciones

2.0 - TECHNICAL DATA

• Use
• Ambient temperature (TS)
• Minimum operating pressure
• Max operating pressure
• Allowable pressure PS
• Safety shut offs closing time
• Accuracy class
• Overpressure shut off accuracy unit
• Closing pressure class
• Relief valve
• Connecting the vent
• Mechanical strength
• Rp Threaded connections
• NPT Threaded connections
• Flanged connections that can couple with PN 16 flanges : on request DN 25 with swivel flanges
• Standard filter element
• In compliance with
2.1 - MODEL IDENTIFICATION (for configurations see pages 45 ÷ 51)
FRG/2MCSH:
RG/2MCSH:
FRG/2MBH (Z-F-R-M): Pressure regulator with filter - with safety shut offs
Z: Connections in line
F: Connections at 90° IN G 1/2
R: Connections at 90° OUT G 3/4
M: "U" Connections IN G 1/2 - OUT G 3/4

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;
Madas Technical Manual - 5|5.3a - REV. 1 of 20
Pressure regulator with filter - without safety shut offs
Pressure regulator without filter - without safety shut offs
Feb 2020
th
: non-aggressive gases of the three families (dry gases)
: -20 ÷ +60°C
: 0.5 bar
: 5 bar
: 5 bar
: < 1 s
: AC=10 - (Pa ± 10%)
: AG=10 (only 2MBH...models)
: SG=10
: tested according to the indications in EN 334
: G 1/4
: Group 2 (according to EN 13611)
: (DN 15 - DN 20 - DN 25) according to EN 10226
: on request
: filtering 50µm (on FRG... versions)
: PED Directive 2014/68/EU - ATEX Directive 2014/34/EU
13
FRG-RG/2MCSH - FRG/2MBH (Z/F/R/M)