Figure 6: Cover casting with the arrow
6.
Start-up and Commissioning:
6.1
Flushing of Lines (Refer to Figure 4)
As part of pre-installation all fluid handling equipment particularly piping should be
thoroughly cleaned of scale and the internal debris which accumulates during
construction. This is accomplished by blowing or flushing with air, steam, water and other
suitable medium.
Follow these steps to carry out the flushing.
1.
Close the stop valve
(2)
and open the bypass stop valve
(6)
.
2.
Let the condensate drain for at least 10-15 minutes or until clear condensate starts
coming out, whichever is earlier.
3.
Now slowly close the bypass stop valve
(6)
and open the stop valve
(2).
6.2 Commissioning :(Refer to Figure 4)
After installation or maintenance ensure that the system is fully functioning by confirming
condensate is passing through it.
i)
After flushing of lines is complete, ensure stop by-pass valve
(6)
closed and stop
valve
(2)
opened.
ii)
Check for leaks and attend if any.
6.3
Setting of steam lock release (SLR) : (Refer to Figure 7)
Only SLR Assembly:
1.
Loosen the gland nut
(1)
by one thread
2.
Rotate the stem
(2)
in clockwise direction. This moves the stem
(2)
towards SLR seat.
3.
Once the stem touches the SLR seat, rotate the stem
(2)
in anti-clockwise direction by
th
1/4 of a turn.
8
SOFT31(DN15-25)
