gents,
I'd like to let you know that our low pressure steam boiler (water tube type) is in preservation since 2015.
There is a plan to started for test to check its integrity and reliability. Hydro test carried out successfully. Also, baroscopic inspection performed for tubes side, unfortunately it was observed scales formed along tube with localized corrosion.
It is recommended the boiler should have chemical cleaning (boil-out process).
So. we have lack of documents, proper chemicals, and related procedure.
I am grateful to all who give us help or advice to solve this issue.
Regards,
Faisal