Flowserve BK 45 - Manual (Page 11)


OKS ® 7 is a registered trademark of OKS Schmierstoffe GmbH, München, Germany
GESTRA steam traps BK 45, BK 45U and BK 46 do not require any special maintenance.
However, If used in new installations which have not been rinsed check and clean the Thermovit regu-
lator after the commissioning procedure.
. Unscrew body screws 1 and remove cover 3 from body 7 .
. Unscrew and clean Thermovit regulator 4 .
. Discard and replace Thermovit regulator 4 in case of visible signs of wear or damage (see table List
of Spare Parts).
4. Clean body and internals. Clean all gasket surfaces.
5. Apply heat-resistant lubricant to all threads, the seating surfaces of the nozzle insert and the cover
(use for instance OKS ® 7)
6. Screw in Thermovit regulator and tighten with the torque indicated in the table Torques required for
tightening.
7. Gasket 6 must be discarded and replaced if there are visible signs of damage. Use the same cover
3 . Always discard and replace gasket 6 when using a new cover 3 or the cover of another steam
trap (see table List of Spare Parts).
8. Put cover onto body. Tighten body screws 1 alternately and in several steps with the torque indi-
cated in the table Torques required for tightening.
Cleaning / exchanging Thermovit regulator and nozzle insert
Checking steam traps
You can check the GESTRA steam traps BK 45, BK 45U and BK 46 for correct operation using the
GESTRA ultrasonic measuring unit VAPOPHONE ® or TRAPTEST ® .
We recommend that you perform the measurement at the lower part of the cover 3 .
Should you detect any loss of live steam clean the steam trap or discard and replace the Thermovit
regulator (see table List of Spare Parts).
Maintenance
BK 45, BK 45U, BK 46
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 depres-
surized (0 bar) and cold (0 °C).
The equipment must be isolated and vented from both upstream and downstream pres-
sure 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.
Periodic testing and maintenance of the trap is recommended to ensure proper functioning.
Continuous monitoring is recommended for critical applications.