29
REV
AL 182
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR
|
SAFETY
|
REV. 00
EN
Operating
conditions
Atmosphere
potentially
explosive
Regulatory references
Management measures in
-
cluded in the instructions for
use and warning
Breakage of the
control head dia-
phragm
(malfunction)
No
This event must be considered a rare
malfunction.
All atmospheric pressure chambers
delimited on at least one side by a
diaphragm must be channelled to
a safe area (in accordance with the
provisions of Standard EN 12186 and
Standard EN 12279).
The instructions for use indicate
the need to meet the requirements
of Standards EN 12186 and EN
12279.
Breakage of other
non-metallic parts
(malfunction)
No
This type of malfunction is not rea-
sonably expected as it involves static
sealing (to the outside).
-
Decommissioning
No
• The pressure of the system sec-
tion in which the equipment is in-
stalled must be reduced with ap-
propriate vent lines channelled to
a safe area (in accordance with
the provisions of Standard EN
12186 and Standard EN 12279).
• The residual gas must be dis-
charged as indicated above.
The instructions for use indicate
the need to meet the requirements
of Standards EN 12186 and EN
12279
Reboot
No
• After reassembling the regulator,
carry out an external leakage test
at a convenient pressure value as
specified by the manufacturer.
• Before commissioning, the ex-
ternal sealing of the system por-
tion on which the equipment is
installed is checked at a suitable
pressure (in accordance with
the provisions of standards EN
12186 and EN 12279).
The instructions for use indicate:
• the minimum conditions for
testing internal leakage;
• the need to meet the require-
ments of Standards EN 12186
and EN 12279.
Tab. 3.11.
Summary of Contents for REVAL 182
Page 404: ......
