172-65702M-04 (SQ-C01) 10 Dec 2020
22
2. Checking each area before commissioning
a)
Check the piping connections
Check to make sure that the steam inlet piping, cold water inlet piping,
condensate outlet piping and hot water outlet piping are properly connected
to the unit.
b)
Check tightening of internal piping, bolts and plugs
Make sure that piping inside the unit has been re-tightened after installation.
Make sure that all joints for flanges and plugs are properly tightened.
c)
Checking opening/closing of valves
Check to make sure that valves installed on the steam inlet piping, cold
water inlet piping and hot water outlet piping are closed.
Furthermore, close the valves related to supply steam or discharge hot
water, such as the valves on the supply water system.
d)
Initial blowdown
Before commissioning, make sure to perform flashing and blowdown. If
blowdown has not been adequately performed, TLV cannot guarantee
against damage or performance loss of valves and the unit due to scale.
e)
Check to make sure that steam is supplied just before the valve at the
steam inlet and that the pressure gauge reading is 0.2 to 0.7 MPaG.
