Flowserve DK 45 User Manual
GESTRA Steam Systems
DK 45
Installation Instructions 818676-00
Steam Trap
DK 45
1
Contents
Page
Important Notes
Usage for the intended purpose .............................................................................................................4
Safety note ............................................................................................................................................ 4
Danger ...................................................................................................................................................4
Attention .................................................................................................................................................4
PED (Pressure Equipment Directive) ........................................................................................................5
ATEX (Atmosphère Explosible) .................................................................................................................5
Explanatory Notes
Scope of supply ......................................................................................................................................6
Description ........................................................................................................................................... 6
Function ................................................................................................................................................6
Technical Data
Corrosion resistance ...............................................................................................................................7
Sizing .....................................................................................................................................................7
Name plate / marking .............................................................................................................................7
Design
DK 45 ....................................................................................................................................................8
Key ......................................................................................................................................................... 9
Installation
Danger .................................................................................................................................................10
DK 45 ...................................................................................................................................................10
Steam trap with flanges ....................................................................................................................... 10
Steam trap with screwed sockets ......................................................................................................... 10
Steam trap with socket-weld ends .......................................................................................................11
Steam trap with butt-weld ends ............................................................................................................ 11
Attention ............................................................................................................................................... 11
Heat treatment of welds........................................................................................................................11
Commissioning
DK 45 ...................................................................................................................................................11
Operation
DK 45 ...................................................................................................................................................11
2
Contents – continued –
Page
Maintenance
Checking steam trap .............................................................................................................................12
Cleaning / replacing the regulator und the nozzle insert ........................................................................12
Cleaning / replacing the strainer ...........................................................................................................13
Tools .....................................................................................................................................................13
Torques ................................................................................................................................................13
Spare Parts
Spare parts list ....................................................................................................................................14
Decommissioning
Danger .................................................................................................................................................14
Disposal................................................................................................................................................14
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Important Notes
Usage for the intended purpose
Use steam trap only for the discharge of condensed water in pipe lines or for air-venting within the
admissible pressure/temperature ratings. Check the corrosion resistance and chemical suitability of the
steam trap for the application in question.
For information on the application in potentially explosive areas see section “ATEX Directive 94/9/EC,
1999/92/EC” on page 5.
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.
Danger
The equipment is under pressure during operation.
When loosening flanged connections or sealing plugs, hot water and/or steam may
escape.
This presents the risk of severe scalding.
Installation and maintenance work should only be carried out when the system is
depressurized (0 bar): isolate the equipment from both upstream and downstream
pressure.
The equipment becomes hot during operation. This presents the danger of severe burns
to hands and arms. Installation and maintenance work should only be carried out when
the system is cold.
Before carrying out any kind of maintenance work or undoing flanged connections or
sealing plugs make sure that all connected lines are depressurized (0 bar) and cooled
down to room temperature.
Sharp edges on internal parts present a danger of cuts to hands. Always wear industrial
gloves when replacing the regulator or the strainer.
Attention
The name plate indicates the technical specification of the equipment.
Do not commission or operate a steam trap without name plate.
4
Important Notes – continued –
PED (Pressure Equipment Directive)
The equipment fulfils the requirements of the Pressure Equipment Directive 97/23/EC.
DK 45 can be used with fluids of group 1 and 2.
With CE marking (apart from equipment according to section 3.3).
ATEX (Atmosphère Explosible)
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, 1, 2, 20, 21, 22
(1999/92/EC). The equipment is not Ex marked.
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