In all installations, there is a filterlock (consisting of a filter assembly and a vacuum or electric solenoid operated shut-off valve) located at the input to the converter.
Previously, the shut-off switch had been moved to a wall across from the escalator in order to prevent pranksters from turning it off while people were on it.
Non-pressurized refueling systems do not require tank pressurization for automatic nozzle shut-off, thus allowing their use on thin-walled metallic and composite material fuel tanks.
Although idlis are often cooked in a steamer over the stove, microwave steamers and electric idli steamers are also available, with automatic steam release and shut-off for perfect cooking.