Kampa Pro 330 awning blows up

Two air awnings exploded when we were on site at morn hill, and on an earlier visit this year at Sandringham one exploded, 

The camping store near us say that  new "tubes"are one of  their best sellers

Over-inflated!

Is that possible as are they not fitted with over pressure release valves ?,or when the sun comes out the owner has to manually reduce the pressure

Safer with poles? Plus they can sort your plumbing. 

I have the same Kampa Pro air 330 and find that I just need to inflate to 6 psi to get a very firm stable set up. This is less than the 9 - 11 psi suggested by Kamp but as it works well and provides a wider safety margin I am happy to stick with it. What PSI had you set Madwomen49?

I have a Kampa air awning .... .no idea what pressure I inflate mine to as there's no gauge anywhere. I just squeeze it to test! 

If you use the hand pump supplied with the awning, it can't over-inflate it.  I use an electric one on our 390 Grande and, like Tirril, set it to 7 or 8 psi and it automatically cuts out at that pressure.  That said, if it's really hot and I'm worried, I always let a bit of air out just to be on the safe side.

I can see the attraction of air awnings due to the ease of getting them set up but blowing up??? That’s something that you never heard of. With the hot sun, I would do the same as Tirril had I got one- have the manufacturers missed something here? 

In their literature Kampa say their air poles are tested to be safe up to 22psi.

btw an increase of 10C leads to about a 1 psi increase

when we bought our 390 some years ago, the dealer said it was tested to 22 psi. I would like to meet the person who could put 22psi in the awning with the provided hand pump. I have a Kampa pump which is pre-set to 10psi. For the record, we had a puncture quite recently whilst in Spain, Kampa got a new leg to us in 5 days, just as well because the awning is not as modular as Kampa like to make out, e.g. if you get a puncture in the main leg nothing goes up as there is only on inlet valve and that is in the main leg.