Flowserve UNA 38 User Manual
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The equipment does not have its own potential source of ignition and is therefore not subject to the
ATEX Directive 94/9/EC. The equipment can be used in potentially explosive areas 0, , , 0, ,
(999/9/EC).
The equipment is not Ex marked.
Important Notes
Usage for the intended purpose
UNA 38, UNA 39:
Use the steam traps only for the discharge of condensed steam and liquids. Use the equipment for
the discharge of condensed steam and other condensable gases in pipes only within the specified
pressure and temperature ratings, and check the corrosion resistance and chemical suitability for the
application in question.
Danger
The steam trap is under pressure during operation.
When loosening flanged connections, sealing plugs or the control unit, it is possible
that hot water, steam, corrosive liquids or toxic gases may escape.
This presents the danger of severe burns and scalds to the whole body or severe cases
of poisoning by toxic gases.
Installation and maintenance work should only be carried out when the system is
depressurized.
Isolate the trap from both upstream and downstream pressure.
The steam trap becomes hot during operation.
This presents the risk of severe burns to the whole body.
Before performing maintenance work on the valve or flanged connections or undoing
the gland packing screws or sealing plugs, ensure that all the connected pipes are
pressureless (0 bar) and have cooled down to room temperature (0 °C).
Safety note
The equipment must only be installed and commissioned by qualified staff.
Maintenance and service work must only be performed by adequately trained persons who have
a recognized level of competence.
PED (Pressure Equipment Directive)
The equipment fulfils the requirements of the Pressure Equipment Directive PED 97/3/EC.
UNA 38 and UNA 39 are intended for applications with fluids of group and .
With CE marking (apart from equipment according to section 3.3).
ATEX (Atmosphère Explosible)
Attention
The name plate indicates the technical specification of the equipment.
Do not commission or operate a steam trap without a name plate.