Paddy passed the hydraulic pressure test on the 19.03.14, all boiler fittings are replaced with plugs and blanks, the boiler is then filled completely with water, pressure is then applied via a manual water pressure pump, the pressure must be held for at least 20 mins.with no more than a 10% drop.
The main steam pipe, injector, safety valve, regulator, water pump, whistle, and any other fitting's are then re-installed ready for the steam test next week, this will include any adjustments to the safety valve, Paddy will then be ready for service. I hope i haven't sent you all to sleep!!
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