ES
FR
EN
IT
12
Madas Technical Manual
- 4|4.2a - REV. 1 of 20
th
Feb 2020
FRG/2MBCL(Z-F-R-M) - FRG/2MBL(Z-F-R-M)
2.0 - TECHNICAL DATA
• Use
: non-aggressive gases of the three families (dry gases)
• Ambient temperature (TS)
: -20
÷
+60°C
• Max operating pressure
: 0.5 bar
• Safety lock closing time
: < 1 s
• Class
: A=(P2 ± 15%)
• 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 1/4
• Mechanical strength
: Group 2 (according to EN 13611)
• Rp threaded connections
: (DN 15 - DN 20 - DN 25) according to EN 10226
• NPT Threaded connections
: on request
• Flanged connections that can couple with PN 16 flanges : on request DN 25 with swivel flanges
• Standard filter element
: filtering
50
µ
m
• In compliance with
: ATEX Directive 2014/34/EU
2.1 - MODEL IDENTIFICATION (for configurations see pages 44 ÷ 50)
FRG/2MBCL (Z-F-R-M):
Pressure filter regulator - Compact version (up to 25 m
3
/h)
FRG/2MBL (Z-F-R-M):
Pressure filter regulator - Standard version
Z
: Connections in line
F
: Connections at 90° IN G 1/2
R
: Connections at 90° OUT G 3/4
M
: Connections at “U” 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;
