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56
Optional Hose
burst pressure
sensor
Explosion risk
from spark
N/A Current Huba 625
sensor must not
be used for
explosive
operation. An
alternative Exd /
EExd component
should be used
Instruction
manual plus
control of ignition
source `b` if
option used
Mechanical
coupling
Mechanical
slippage /
breakage
N/A Carry out routine
maintenance to
check for security
Instruction
manual
Closed liquid
internal circuit
Excess
temperature
N/A Fit temp. probe to
front cover or
continuous temp.
monitoring can be
fitted and set to
trip the drive
power at 10k
above normal
running temp.
Instruction
manual and
control of ignition
source `b` if
monitoring is
fitted
Closed valve
condition
Excess
temperature and
pressure
N/A Carry out routine
maintenance
checks to ensure
controlled temp &
gauge pressures
Instruction
manual
Electrical Vac
Assist
Explosion risk N/A Elect. Option has
IP54 motor so an
air operated unit
is recommended,
ensure internal
spool valve on
Piab is of brass
construction
Instruction
manual plus
control of ignition
source `b` if non
sparking option is
used.
Glossary of terms:
Safety `c` - refers to the integral from standard constructional design
Ignition source `b`- refers to protection incorporated to control an ignition source
Liquid Immersion `K` - refers to protection of ignition due to use of spark quenching agent
Eexd / Exd – refers to explosion proof electrical components with flameproof protection
EN 13463-1 - European norm standards for Non Electrical equipment in explosive atmospheres