Flowserve BK 45 User Manual
GESTRA Steam Systems
BK 45
BK 45U
BK 46
Installation Instructions 810437-06
Steam Traps BK 45, BK 45U, BK 46
EN
English
1
2
Contents
Page
Important Notes
Usage for the intended purpose ..............................................................................................................4
Safety note ............................................................................................................................................. 4
Danger ...................................................................................................................................................4
Attention .................................................................................................................................................4
PED (Pressure Equipment Directive) ........................................................................................................4
ATEX (Atmosphère Explosible) .................................................................................................................4
Explanatory Notes
Scope of supply ...................................................................................................................................... 5
Description ............................................................................................................................................. 5
Function .................................................................................................................................................5
Technical Data
Corrosion resistance ............................................................................................................................... 6
Name plate / marking ............................................................................................................................. 6
Component Parts
Component parts BK 45, BK 45U, BK 46 .................................................................................................7
Key .........................................................................................................................................................8
Installation
BK 45, BK 45U, BK 46 .............................................................................................................................9
Danger ...................................................................................................................................................9
Installation instructions ...........................................................................................................................9
Attention .................................................................................................................................................9
Heat treatment of welds........................................................................................................................10
Tools .....................................................................................................................................................10
Commissioning Procedure
Danger .................................................................................................................................................10
Operation
Attention ...............................................................................................................................................10
Contents – continued –
Page
Maintenance
Danger .................................................................................................................................................11
BK 45, BK 45U, BK 46 ...........................................................................................................................11
Checking steam traps ...........................................................................................................................11
Cleaning / exchanging Thermovit regulator and nozzle insert ................................................................ 11
Cleaning / replacing strainer ................................................................................................................. 12
Tools .....................................................................................................................................................13
Tightening torques ................................................................................................................................13
Spare Parts
BK 45, BK 45U, BK 46 ...........................................................................................................................13
Spare parts list .....................................................................................................................................13
Decommissioning
Danger .................................................................................................................................................14
Attention ...............................................................................................................................................14
Disposal................................................................................................................................................14
3
4
Important Notes
Usage for the intended purpose
Use steam trap only for discharging condensate or air-venting from steam lines. Use the equipment
only within the allowable pressure and temperature ratings and only if the chemical and corrosive
influences on the equipment are taken into account.
Safety note
Installation, commissioning, retrofitting and maintenance work must only be performed by qualified
staff who – through adequate training – have achieved a recognised level of competence.
Danger
The equipment is under pressure and hot during operation. Risk of severe burns and
injuries to the whole body.
Installation and maintenance work should only be carried out when the system is depressurized (0 bar) and cold (20 °C).
The equipment must be isolated and vented from both upstream and downstream pressure before installation or maintenance work is performed.
Sharp edges on internals present a danger of cuts to hands.
Always wear industrial gloves when servicing the equipment.
Attention
The name plate specifies the technical features of the equipment.
Do not commission or operate any item of equipment that does not bear its specific
name plate. The pressure and temperature ratings on the name plate of the equipment
must meet the requirementes of the installation.
PED (Pressure Equipment Directive)
The equipment fulfills the requirements of the Pressure Equipment Directive PED 97/23/EC.
For use with fluids of group 2.
The equipment is excluded from the scope of the PED according to section 3.3 and must not bear a CE
marking.
ATEX (Atmosphère Explosible)
The equipment does not have ist own potential source of ignition and is therefore not subject to the
ATEX Directive 94/9/EC.
Applicable in Ex zones 0, 1, 2, 20, 21, 22 (1999/92/EC). The equipment is not Ex marked.
Explanatory Notes
Scope of supply
BK 45:
1 Steam trap BK 45
1 Installation manual
Description
Thermostatic/thermodynamic steam trap with corrosion resistant Thermovit® regulator (bimetallic
plates) able to withstand waterhammer. With internal strainer and integral non-return valve action.
Asbestos-free body gasket (graphite/CrNi).
The standard version discharges the condensate with virutally no banking-up, the version “U” with
approx. 30 K undercooling.
Function
During start-up of the plant the steam trap is completely open. Cold condensate and air are discharged. As the temperature rises, the bimetallic plates deflect, drawing the stage nozzle towards the
closed position.
Just before the condensate reaches saturated steam temperature the orifice will be shut off tight.
The thermodynamic effect of the stage nozzle chamber assists in the closing process.
The steam trap provides automatic air-venting at start-up and during operation of the plant and can
also be used for thermal air-venting.
BK 45U:
1 Steam trap BK 45U
1 Installation manual
BK 46:
1 Steam trap BK 46
1 Installation manual
5
Loading...