Fault identified with Excess Flow Valves

[Keithl]

If your MH (or Caravan) is fitted with an 'Excess Flow Valve' such as a 'GasStop' or one of the major gas manufacturers own brand devices AND an external gas BBQ point you need to read this article from Caravan magazine as they have identified a potential fault whereby the EFV does not respond to a failure of anything connected to the BBQ point...

 

https://www.outandaboutlive.co.uk/caravans/news/caravan-mags-tests-reveal-potential-gas-valve-danger

 

And then read a statement issued by GasStop here...

 

https://www.outandaboutlive.co.uk/images/files/UK%20%20Important%20Compatibility%20Notice%20-%207th%20June%202018_1%5b2%5d.pdf

 

Keith.

[Alanb]

Thanks Keith for an interesting and informative post.

 

As I do not have either a BBQ LPG outlet, or an excess flow device, my interes is academic.

 

The linked documents fail to provide any suggestion as to the cause of the problem. I can only speculate that the cause is either a deliberately designed in, or chance restriction in the gas flow through the BBQ point.

 

Any other thoughts on this?

 

Perhaps those who drive with gas turned on and rely on the excess flow device for safety in case of an accident may wish to reconsider?

 

Alan

 

[monique.hubrechtsgm]

They are used and common in natural gas lines, and shut- off when a set diif- press is reached. Or a high outlet pressure above 30 mbar system pressure. They are called safety shut- off valves. They have always a manual reset by HAND. i still do not understand that in the uk, this is a DIY job.

[tonyishuk]

May be me but the first link comes up as not found.

 

Tried a search but unable to find anything regarding the topic.

 

Rgds