Steam Piping - FULTON FB-S series Installation, Operation & Maintenance Manual

Cleaning
A STEAM PIPING
Steam and water piping systems connected to the boiler may contain oil, grease, or foreign matter.
The impurities must be removed in order to prevent damage to pressure vessel heating surfaces. On
a steam system, the condensate should be wasted until tests show the elimination of undesirable
impurities. During the period that condensate is wasted, attention must be given to the treatment of
the raw water used as make-up so that an accumulation of unwanted materials or corrosion does not
occur. For more information, contact your local authorized boiler representative.
On a hot water system, chemical cleaning is generally necessary and the entire system should be
drained after treatment. Consult your local authorized boiler representative for recommendations,
cleaning compounds, and application procedures.
B PRESSURE VESSEL
The waterside of the pressure vessel must be kept clean from grease, sludge, and foreign material.
Such deposits, if present, will shorten the life of the pressure vessel, will interferer with efficient
operation and functioning of control, of safety devices, and quite possibly cause unnecessary and
expensive re-work, repairs, and down-time.
The installation and operating conditions that the boiler will be subjected to should be considered and
cleaning of the waterside of the pressure vessel should be provided during the course of initial
start-up.
The pressure vessel and the steam and return lines or hot water piping represent, in effect, a closed
system. Although the steam and return (condensate) lines or hot water piping system may have been
previously cleaned, it is possible that:
(1) Cleaning has been inadequate.
(2) Partial or total old system is involved.
(3) Conditions may prevent adequate cleaning of piping.
The pressure vessel waterside should be inspected on a periodic basis. An inspection will reveal true
internal conditions and serve as a check against conditions indicated by chemical analysis of the
boiler water. Inspection should be made three months after initial starting and at regular 6-, 9-, or
12-month intervals thereafter. The frequency of further periodic inspections will depend upon the
internal conditions found.
If any unwanted conditions are observed, contact your local authorized boiler representative for
recommendations.
Any sludge, mud or sediment found will need to be flushed out. If excessive mud or sludge is noticed
during the blowdown the scheduling or frequency of blowdown may need to be revised. The need for
periodic draining or washout will also be indicated.
Any oil or grease present on the heating surfaces should be removed promptly by a boil-out with an
alkaline detergent solution.
Temperature of initial fill of water for hydrostatic tests, Boil-out, or for normal operation
should be as stated in the ASME Boiler Code.
NOTE
11
Fulton Boiler FBS Series
FBS 01/05