B&C Technologies SI Series Industrial - Manual (Page 53)

Figure 7.6: Steam Trap Service
1. Ordinary deposits if dirt and grease can be removed with detergent and water. The metal
should be thoroughly rinsed and dried after washing. Periodic cleaning will help to maintain
the bright surface appearance and prevent corrosion.
2. Contact with dissimilar metal should be avoided whenever possible. This will help prevent
galvanic corrosion when salty or acidic solutions are present.
3. Salty or acidic solutions should not be allowed to evaporate and dry on stainless steel. They
may cause corrosion. Ensure that the stainless steel is wiped clean of acidic solution residues.
4. Deposits that adhere to the stainless steel should be removed, especially from crevices and
corners. When using abrasive cleaners, always rub in the direction of the polish lines or grain
of the stainless steel to avoid scratch marks. Never use ordinary steel wool or steel brushes
on the stainless steel. Use stainless steel wool or soft non-metal bristle brushes..
5. If the stainless steel appears to be rusting the source of the rust may actually be an iron or
steel part not made of stainless steel, such as a nail or screw. One remedy is to paint all
carbon steel parts with a heavy protective coating. Stainless steel fasteners should be used
when possible.
6. Discolorations or heat tint from overheating may be removed by scouring with powder or
by employing special chemical solutions.
7. Sanitizers or sterilizing solutions should not be left in stainless steel equipment for prolonged
periods of time. They often contain chlorine, which may cause corrosion. The stainless steel
should be cleaned and rinsed thoroughly of any solution containing chlorine.
8. When an external chemical supply system is used, make certain that no siphoning of chemi-
cals occurs when the washer-extractor is not in use. Highly concentrated chemicals can cause
severe damage to stainless steel and other components within the machine. Damage of this
kind is not covered by the manufacturers warranty. Locate the pump below the washers
injection point to prevent siphoning of chemicals into the machine.
49