Quote by eirebus
That's what I was thinking but tyre fitters are putting standard valves in not allowing for higher pressures in heavier vans
A CRIMINAL ACTIVITY :shock: .
I had a rubber valve go a few years ago while it Italy, San Marino to be precise, when I went to a tyre fitters in Rimini the guy nearly had a heart attack when he saw the other three wheels also had rubber valves fitted.
He changed all four wheels to
THESE for a total cost of €60 including re-balancing each wheel.
The MH was originally supplied with standard steel wheels with metal valves but I got Ducato OE alloys from my local FIAT Professional dealer who fitted standard car valves, five years later when I replaced the original tyres the tyre fitters never spotted the valves fitted were unsuitable, about two months later the stem on one of them started to leak, fortunately I had parked up for the night when I heard the mysterious hissing sound, when I checked around the MH one of the rear valved had started to go.
How luck was I that it hadn't gone an hour or so earlier when I travelling at 100km/kh down the motorway.
Up to that time I knew nothing about the subject but quickly became an expert
There are an in-between type of valves,
LIKE THESE which are rated to 5.5 Bar but with those there is no safety margin. However, for peace of mind, I would always recommend the type I got in Italy as they are rated away beyond the 5.5 Bar, unlimited in reality.