Commissioning, Operation – Flowserve BA46 User Manual
Page 27
7
Commissioning
– continued –
Continuous blowdown valves BA 46, BA 47 without actuator
The amount of boiler blowdown dictated by the operating conditions can be adjusted by means of the
control lever on the continuous blowdown valve. For more information please refer to the capacity charts
on pages 3 to 0.
Continuous blowdown valves BAE 46, BAE 47 with actuator
Use the control equipment KS 90, LRR -40, LRR -5 or LRR -6 to set the required TDS level of the
boiler water. Please compare the resulting valve positions (see scale on the control lever) with the values
indicated in the capacity charts on page 3 to 0.
Operation
The control lever of the continuous blowdown valve and the coupling of the actuator
become hot during operation. This presents the risk of severe burns to hands and arms
when touching the control lever or the coupling. Do not operate the equipment unless you
are wearing thermally insulated and temperature resistant safety gloves.
Danger
Make sure that the flanged connections of the BA 46, BA 47, BAE 46, BAE 47 are securely tightened and
not leaking. Retighten the stuffing box
C
if there is a leak in this area.
BA 46, BA 47, BAE 46, BAE 47
Attention
n
As the stuffing box screws are tightened the break-out force and the frictional forces
of the nozzle steam are increased.
n
The break-out force and the frictional forces of the nozzle steam must not exceed the
max. allowable operating forces of the actuator.
n
Excessive fastening of the stuffing box screws impairs the correct functioning of the
continuous blowdown valve and can cause jamming of the nozzle stem.
n
If the nozzle stem is jammed, the continuous blowdown valve can no longer open,
control or close.
Attention
n
As the stuffing box screws are tightened the break-out force and the frictional forces
of the nozzle steam are increased.
n
The break-out force and the frictional forces of the nozzle steam must not exceed the
max. allowable operating forces of the actuator.
n
Excessive fastening of the stuffing box screws impairs the correct functioning of the
continuous blowdown valve and can cause jamming of the nozzle stem.
n
If the nozzle stem is jammed, the continuous blowdown valve can no longer open,
control or close.