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1.0 - GENERAL INFORMATION
This manual shows you how to safely install, operate and use the device.
The instructions for use ALWAYS need to be available in the facility where the device is installed.
ATTENTION: installation/maintenance needs to be carried out by qualified staff (as explained in
section 1.3) by using suitable personal protective equipment (PPE).
For any information pertaining to installation/maintenance or in case of problems that cannot be solved with the instructions,
contact the manufacturer by using the address and phone numbers provided on the last page.
1.1 - DESCRIPTION
Device which supplies a preset and constant "downstream" pressure value (Pa) (within the intended operating limits) when the
inlet pressure (Pe) and/or the flow rate (Q) changes. The compensated obturator ensures precision when adjusting the outlet
pressure (Pa) even in the case of high and sudden variations in the inlet pressure.
It is fitted with:
•
a spring to adjust the outlet pressure;
•
a safety membrane;
•
an output pressure test nipple (with some exceptions) to control the outlet pressure (Pa). On some models the pressure
test nipple is also present on the input;
It can also be supplied with a built-in filtering element (FRG/2MC models).
Available 90° connections for threaded connections from DN 15 to DN 50.
Reference standards: EN 88-2 – EN 13611.
1.2 - KEY OF SYMBOLS
DANGER: In the event
of inobservance, this may
cause damage to tangible
goods.
1.3 - QUALIFIED STAFF
These are people who:
• Are familiar with product installation, assembly, start-up and maintenance;
• Know the regulations in force in the region or country pertaining to installation and safety;
• Are trained in first aid.
1.4 - USING NON-ORIGINAL SPARE PARTS
• To perform maintenance or change parts (e.g. spring, filter element, etc.) ONLY manufacturer-recommended parts can be
used. Using different parts not only voids the product warranty, it could compromise correct device operation.
• The manufacturer is not liable for malfunctions caused by unauthorised tampering or use of non-original parts.
1.5 - IMPROPER USE
• The product must only be used for the purpose it was built for.
• It is not allowed to use fluids other than those expressly stated.
• The technical data set forth on the rating plate must not, under any circumstances, be exceeded. The end user or installer is in
charge of implementing correct systems to protect the device, which prevent the maximum pressure indicated on the rating plate
from being exceeded.
• The manufacturer is not responsible for damage caused by improper use of the device.
RG/2MC - FRG/2MC
DANGER:
In
the
inobservance, this may cause damage
to tangible goods, to people and/or pets.
10
event
of
ATTENTION: Attention
is drawn to the technical
details
qualified staff.
Madas Technical Manual - REV. 0 of 10
intended
for
May 2018
th
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