Please refer to the ‘owner’s handbook’ for your particular model of
locomotive, for details on correct use of these pressure vessels.
Pressure vessel care and maintenance
Gas tank
The gas tank is used for the storage of LPG (liquefied petroleum gas) in
the form of butane, iso-butane or as set out in the ‘owners handbook’.
The tank is fitted with a self-venting filler valve which contains no
serviceable parts. Should the filler valve become defective in any way, it
must be replaced with a new item.
It is recommended that the gas tank should undergo the following checks,
carried out by a ‘competent person’, club, society or pressure vessel
manufacturer, every year:-
1/ thorough visual inspection.
And every five to ten years:-
1/ hydrostatic pressure test to not less than 1.5 and not more than 2
times the maximum working pressure.
Boiler
The boiler is fitted with a safety valve to prevent the steam pressure rising
above the maximum allowable working pressure. This is pre-set to open
at between 2.38 bar (35 psi) and 2.72 bar (40 psi) and must not be
adjusted to increase this value.
If the safety valve becomes defective in any way, it should be replaced or
returned to the factory for service and calibration.
It is recommended that the boiler should undergo the following checks,
carried out by a ‘competent person’, club, society, or pressure vessel
manufacturer, every one to two years:-
1/ thorough visual inspection.
2/ hydrostatic pressure test to not less than 1.5 and not more than 2
times the maximum working pressure.
3/ steam test to check the correct functioning of all steam controls, gauge
and safety valve.
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