B: 45 mm
The V3-14-02 valve is a type of valve used in tubeless truck wheel tyres. This type of valve is used in tyre systems that do not require an inner tube (tubeless tyres), i.e. tyres that have a seal between the rim and the tyre, eliminating the need for an inner tube.
The role of the V3-14-02 valve is to allow air to be inflated into the tyre. These valves are particularly important on trucks as they allow the tyres to be easily checked and maintained at the correct pressure, which is key to the safety and efficiency of the vehicle.