4
Safety
Use for the intended purpose
The equipment is designed for controlling and
regulating the level, pressure and flowrate of fluids
in heat and process control systems.
Correct use includes compliance with the
instructions given in this installation & operating
manual, in particular obedience to all safety
instructions.
Indications and instructions stated in the applicable
documents are part of this installation & operating
manual.
Any other use of the equipment is considered to be
improper.
Note that the equipment is also used incorrectly if
the materials of the equipment are not suitable for
the fluid.
The equipment is also considered to be used
improperly if:
the equipment is not in proper working condition
when being used
the equipment is used in operating conditions
that exceed the pressure and temperature
ratings and limits stated in this IOM and the
applicable documents
the equipment is retrofitted or modified without
the written approval of the manufacturer
the equipment is fitted with spare parts that are
not approved by the manufacturer
the equipment is provided with an actuator that
is not approved by the manufacturer
the equipment is operated or serviced by
unqualified personnel.
The personnel must have the qualification and
experience specified in section "
Qualification of
personnel
" on page 6.
Basic safety notes
Explosion hazard
Explosion risk if equipment is used that is not
suitable for the environmental conditions. When
using the equipment in explosion risk areas
make sure that:
The permissible surface temperature of the
equipment for the place of installation must
not be exceeded.
If electrically insulated equipment is installed
appropriate measures must be taken to
discharge any static electricity between pipe
flanges.
The heat generated by friction caused by
moving parts that do not run smoothly can
cause explosions. Make sure that all moving
parts can operate smoothly.
When carrying out welding work in order to
install or remove the equipment flying sparks
may be generated that can cause fire or
explosion. Observe any on-site regulations for
fire and explosion prevention.
Only qualified personnel is allowed to mount or
remove the equipment or its components.
Risk of severe injuries
The equipment may become hot during
operation. Do not operate the equipment unless
thermal insulation or protection against
accidental contact prevents you from touching
hot surfaces.
The equipment is under pressure during
operation and may be hot. Before carrying out
any work on the equipment make sure that the
following requirements are met:
The pipes must be depressurized (0 bar).
The fluid must be completely removed from
the pipes and the equipment.
During work on the equipment the
installation must be switched off and
protected against unauthorised or
unintended activation.
The pipes and the equipment must have
cooled down to room temperature (approx.
20 °C).
