Adjustment of safety valves: It is required that after every survey, the safety valves be adjusted to the correct safe working pressure.
This adjustment must be done to the satisfaction of the surveyor on the first occasion when steam is raised on the boiler. Where the firing arrangements are such that normal working pressure of the boiler cannot be attained until the vessel is under way, the safety valves are to be adjusted by the Chief Engineer to the correct safe working pressure. This is to be recorded in the vessels log book and the Classification Society and Company informed by telex. The logbook entry must be presented to the next attending Class Surveyor for verification and to complete the Societies’ records.
Urgent 2nd engineer vacancy and Boilers guidance
Once the opening pressure is set and approved by the Class Society, the safety valve pressure adjusting mechanism is to be locked and at no time is anyone to tamper with it. For emergency situations where the boiler needs to be vented, the safety valves are to be activated by remote means only.
The Company is able to provide Urgent 2nd engineer vacancy, issues the following advice:
a) When the boilers are in service:
i) Proper feed water treatment should be administered at all times and alkalinity, suspended solids conductivity, and reserve levels maintained within the required parameters.
ii) The boiler water tests are to be made at least every other and recorded in the test log sheets provided by the chemical company. Vessel is to advise at least 6 weeks before the required forms run out, so that replacements can be made in time.
iii) Maker’s instructions should be followed.
b) During maintenance, routine cleaning and out of service periods:
i) Boilers when not in use should for extended periods either be kept full of water which is alkaline or completely empty and dry and should be maintained in accordance with the manufacturers instructions.
