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Safety Valve<br />
The Reservoirs<br />
One-way<br />
check valve<br />
Low air warning device<br />
Wet tank<br />
Dry Tank<br />
Drain Valve<br />
Drain Valve<br />
The reservoirs, or tanks, are made of steel and serve to contain the compressed air delivered<br />
by the compressor. <strong>Air</strong> from the compressor is hot. When it comes into contact with the cold<br />
steel, condensation occurs. This moisture must not be allowed to accumulate in the tanks. If it<br />
did, it would reduce the amount of air the tank would be able to hold, and thus, reduce the<br />
volume of air available for the operation of the vehicles brakes. A safety valve is fitted to allow<br />
the air to escape if over-pressurisation occurs. (140 to 150 psi.) A one way check valve between<br />
the reservoirs disallows the back flow of air from the dry tank to the wet tank. A low air<br />
warning device will warn the operator of low air pressure when the pressure in the reservoirs<br />
drops to 60 psi. This warning is either audible or visual.<br />
We need to know<br />
We need to know…more reservoirs, more volume; they must be drained at least once per day;<br />
they must be drained completely in order to allow all the moisture and sludge to escape; the<br />
wet tank should be drained first so the function of the one-way check valve can be tested.<br />
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