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Ensure total isolation,
venting and draining
BEFORE opening vessel
closure. |
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Access
into pressure vessels is a potentially hazardous
exercise. Residual pressure, volumes of residual
liquids or gases all can be harmful - typical
examples of these potential hazards include pig
traps, slug catchers and filter housings.
Locking the vessel closure in the closed position
ensures access into the vessel can be achieved
only under controlled safe conditions. The operating
key is held in a secure place - e.g. Control Room
or Supervisor's office or is retained (trapped)
in some other related interlocked item of equipment.
As a minimum, vessel closures are usually interlocked
with vessel venting and draining functions - the
interlocking arrangement can be extended to incorporate
all process items of equipment relating to the
vessel's function. |
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The
SFC 'DL3' interlock is adaptable to all types
of vessel/access closures and is very simple to
use in pig trap applications especially where
the closure incorporates a bleed device.
The 'DL3' interlock will be designed to interface
with the bleed function to ensure the bleed screw
cannot be removed until the interlock permit key
has been inserted to unlock the 'DL3' assembly.
When the 'DL3' is incorporated into vessel access
safety procedures, total equipment and personnel
safety is assured. |
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Prevent loss of containment
of
explosive or toxic product. |
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Any type of closure
can
be fitted with the DL3
interlock, regardless of
their method of
operation. Design
details can be provided
on request. |
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Download here :
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You can download an
animation showing a typical actuator system
by clicking on the icon |
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You can download a PDF version of the datasheet
by clicking on the icon |
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