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Part Number: TRV67
Medium flow fuel tank breather valve from Mocal. It has capacity for cars with a moderate fuel consumption rate. This valve fits into the top of the fuel tank itself, a 9/16" or 14mm hole needs to be drilled and it is secured internally with a -6 JIC lock nut (FBM2100). Can also be fitted to the removable top plate of a fuel cell if required or sneaked in on a fuel sender unit if space allows. It is straight in-line 1/4" male outlet for the breather hose to be pushed on to. Without a breather valve, a fuel tank cannot replace the space left by the reducing fuel and a vacuum tries to form. This makes it hard work for the pump to suck it out and the tank will collapse inwards. These valves allow air in as the fuel is used, yet close off should you roll over or if fuel tries to exit from the valve itself, due to the ball valve which closes when inverted or if pressure is applied, a useful and sensible safety feature.
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