25
GOVERNORS NOR
TH AMERICA
LOW PRESSURE GAS REGULATOR
|
SAFETY
|
REV. A
US
Operation, maintenance and warning manual
3.6.1 - TABLE OF RESIDUAL RISKS DUE TO PRESSURE
Risk and Hazard
Event and Cause
Effect and
Consequence
Solution and Prevention
Pressurized gas
outlet.
Projection of metal
and non-pressur-
ized parts.
• Violent impact.
• Impact (including
from falling due to
improper handling,
etc.).
• Deformation.
• Broken connections
and, if pressurized,
even bursting.
a. Handling and installation by appropriate
means to avoid localized stresses.
b. Installation in suitable places and spac-
es with appropriate protection, suitable
packaging.
c. Information/indications in this manual.
Pressurized gas
outlet.
Projection of metal
and non-pressur-
ized parts.
• Use of inappropriate
fluids.
• Corrosion.
• Embrittlement.
• Explosion.
a. The user must verify that the fluid used
corresponds to what is stated on the in-
stallation sheet.
Pressurized gas
outlet.
Projection of metal
and non-pressur-
ized parts.
• Operation at tem-
peratures below the
minimum allowable
temperature.
• Embrittlement.
• Breakage.
• Explosion.
a. Install in locations with temperature no
lower than the minimum allowable tem-
perature and/or properly insulate the
equipment.
b. The minimum allowable temperature is
given in this manual (refer to section 4.5).
Pressurized gas
outlet.
Projection of metal
and non-pressur-
ized parts.
Explosion.
• Overpressure or ex-
ceeding nameplate
limits (maximum
allowable pressure).
• Explosion.
• Breakage.
• Cracking.
• Permanent defor-
mations.
a. The device has appropriate design safe-
ty margins.
b. The user should check the maximum
pressure available to the equipment.
c. The design pressure is given in this man-
ual (refer to section 4.5).
Pressurized fluid
output.
Projection of metal
and non-pressur-
ized parts.
• Improper fixing of
the equipment.
• Deformation.
• Breakage.
a. The equipment is provided with unified
type process connections and compres-
sion fittings.
b. The installer must ensure proper attach-
ment to the line.
c.
Information/indications in this manual.
Explosion
of the device
pressurized fluid
output.
Projection of metal
parts.
• Operation at tem-
peratures above the
maximum allowable
temperature.
• Reduction in me-
chanical strength
and breakage of the
device.
• Explosion.
a. The commissioning technician shall
equip the plant with suitable control and
safety equipment.
b. The maximum allowable temperature is
given in this manual (refer to section 4.5).
Pressurized gas
leakage.
Projection of metal
and non-pressur-
ized parts.
• Stray currents,
differentials, electro-
static potentials.
• Localized corrosion
in the device.
a. The commissioning technician should
verify that the equipment is properly
grounded.
Содержание 30051
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