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10
Madas Technical Manual
- 4|4.1b - REV. 0 of 10
th
May 2018
RG/2M
2.0 - TECHNICAL DATA
• Use
: non-aggressive gases of the three families (dry gases)
• Ambient temperature (TS)
: -15 ÷ +60 °C
• Maximum operating pressure
: 0.5 bar
• Minimum flow rate
: 50 m
3
/h gas
• Class :
A (P2 ± 15%)
• Mechanical resistance
: Group 2 (according to EN 13611)
• Flanged connections that can be coupled to PN 16 flanges : (DN 125 - DN 150) ISO 7005 / EN 1092-1
• ANSI 150 flanged connections
: on request
• In compliance with
: ATEX Directive 2014/34/EU
2.1 - MODEL IDENTIFICATION
RG/2M:
Pressure regulator for gas without filter
- (connections in line)
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;
• 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 being
installed exceeds the allowed weight, suitable mechanical equipment and adequate slings must be used.IT IS recommended
to use special lifting eyebolts (
16
). NECESSARY precautions must be taken during the handling phases to avoid damaging/
ruining the external surface of the device.
• It is recommended to install a suitable filter upstream of the device;
• 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 protection against impact or accidental contact if the device is accessible to unqualified staff.
3.2 - INSTALLATION
(see example in 3.4)
• Assemble the device by flanging it, with the due seals, onto the plant with pipes whose flanges are consistent with the
connection being attached. The gaskets must not have any defects and must be centred between the flanges;
