26
REV
AL 182
EN
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR
|
SAFETY
|
REV.
00
3.3.1 - TABLE SHOWING RESIDUAL RISKS DUE TO PRESSURE
Risk and hazard
Event and cause
Effect and
consequence
Solution and prevention
Pressurised gas
leakage.
Projection of me
-
tallic and non-me
-
tallic pressurised
parts.
• Violent impact;
• Impact (also due
to falling, improper
handling, etc.).
• Deformation;
• Broken connections
and, if pressurised,
even burst.
a. Handling and installation with appropri-
ate devices to avoid localised stress.
b. Installation in suitable places and spac-
es with appropriate guards and packaging.
c. Information in the instructions for use
and warning.
Pressurised gas
leakage.
Projection of
metallic and
non-metallic
pressurised parts.
• Use of inappropriate
fluids.
• Corrosion;
• Embrittlement;
• Explosion.
a. The user must check compliance of the
used fluid with the specifications on the
data plate.
Pressurised gas
leakage.
Projection of
metallic and
non-metallic
pressurised parts.
• Operation at tem-
peratures below the
minimum permissi-
ble temperature.
• Embrittlement;
• Breakage;
• Explosion.
a. Install in places where the temperature
is not below the minimum permissible tem-
perature and/or insulate the equipment
adequately.
b. The minimum temperature allowed is in-
dicated on the data plate.
Pressurised gas
leakage.
Projection of me
-
tallic and non-me
-
tallic pressurised
parts.
Explosion.
• Overpressure or
exceedance of the
rated limit values
(maximum pressure
allowed)
• Explosion;
• Breaks;
• Cracks;
• Permanent defor-
mations.
a. The device has appropriate design safe-
ty margins.
b. The user must check the maximum
pressure applicable to the equipment.
c. The maximum allowable pressure is
highlighted on the appropriate plate on the
equipment.
Falling
of the equipment.
• Dangerous han-
dling.
• Deformation;
• Cracking;
• Breakage.
b. The user must have suitably sized lifting
equipment.
c. The above requirements are referred to
in the equipment use and warning instruc-
tion manual.
Pressurised fluid
leakage.
Projection of
metallic and
non-metallic
pressurised parts.
• Incorrect fixing of
the equipment.
• Deformation;
• Breakage.
a.The device is equipped with unified type
process connections and compression fit-
tings.
b. The user must ensure correct fixing to
the line.
c. Directions in the instructions for use and
warning.
Explosion
of the device.
Pressurised fluid
leakage.
Projection of
metallic parts.
• Operation at tem-
peratures above the
maximum permissi-
ble temperature.
• Reduction of me-
chanical resistance
and breakage of the
device;
• Explosion.
a. The user must equip the system with
suitable safety and control devices.
b. The maximum temperature allowed is
indicated on the data plate.
Pressurised gas
leakage.
• Device maintenance
with the system
running.
• Inappropriate open-
ing of pressurised
chambers.
a. The user must perform any maintenance
with the equipment not in operation.
b. The above requirements are referred to
in the use and warning instruction manual.
Summary of Contents for REVAL 182
Page 404: ......
