172-65627M-09 (SQ10) 18 Oct 2021
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(3) Air pressure of the positioner for the steam control
valve
If the facility manager has indicated the acceptable
pressure range on the pressure gauge, check that
the pressure is within the range.
The set value of the pressure gauge is 0.38 MPaG, marked in green on
the upper part on the proper value scale.
(If the air pressure value has deviated from the set value, make sure to
correct the value.)
(4) Filter regulator for the steam control valve
Check and make sure that condensate is
not accumulated in the mist separator of
the filter regulator. If condensate has
accumulated, turn the plug at the bottom of
the separator in the open direction to drain
the condensate. After draining the
condensate, make sure to close the plug by
turning it in the closing direction.
NOTE: If using a mini air compressor to supply air,
make sure to drain condensate from the
compressor periodically.
(5) Valve opening of the steam control valve (No. 11)
If the facility manager has indicated the acceptable pressure range on the
pressure gauge, check that the pressure is within the range.
(6) Abnormal sounds/vibrations
Check for any sounds or vibrations from inside the unit,
such as steam or water flow, or sounds or vibrations from
the circulating pump or valve motors etc. that are clearly
different from normal.
(7) Closing the condensate blow valve (No. 5)
Check to make sure that the valve is closed after
condensate blowdown is carried out. If the condensate blow
valve is not closed, it is dangerous as steam will blow out
when operation starts.
2. Periodic inspection
As a general rule, periodic inspection should be carried out once every two
years.
(1) For maintenance of the following components, refer to individual
instruction manuals. Instruction manuals can be requested from TLV or
accessed from the TLV website.
a) PowerTrap (GT14L)
b) Steam inlet valve (bellows valve) (BE6H)
c) Cyclone separator trap (DC3S)
d) Control Valve (CV10)
e) Electro-pneumatic positioner for control valve CV10
f)
Check valve, steam trap, air vent for steam, ball valve
