Can anybody tell me what this valve (arrow pointing to it) does on a low pressure gas regulator. I think its to shut of the gas flow when there is a leak somewhere but not sure.

I am having some issues that this valve shuts of by itself so i don't have a gas flow even though there is no leak anywhere so it might be faulty. Thinking of changing it for a regulator with no valve.

 

It's a safety valve that closes if the gas flow goes above a certain level , say if a hose split or ruptured. Normally the gas flow needs to go way above normal flow for it to trip. You also need to push it down to open it if you have turned the gas valve on the bottle off and the turned it back on.

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4 hours ago, Bcgardener said:

It's a safety valve that closes if the gas flow goes above a certain level , say if a hose split or ruptured. Normally the gas flow needs to go way above normal flow for it to trip. You also need to push it down to open it if you have turned the gas valve on the bottle off and the turned it back on.

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so is it safe to use a regulator without that valve ?

 

They sell plenty of regulators without that valve so it is okay to use one without it. Its just a bit of extra protection if you have a leak. Your choice.

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the regulators with the safety check valve cost around 400bt including the rubber hose. The basic one costs 250bt or less.

 

Its a no brainer in my book.

 

Even more important if you gas bottle is inside your house, in a kitchen cupboard....it doesnt bear thinking about what can happen with a small leak from a hose or an old cooker and someone comes down for breakfast smoking or waving a dozen smelly incense sticks.

And for us a "rigorous policy": always shut the valve at the bottle when done.

Just remember that the usual cookers here have no safety mechanism at all.

Open the valve and gas will flow indefinite whether ignited or not!

 

^^yeah...I usually close the valve on the gas bottle when I'm finished using it...my western kitchen is inside and the gas bottle is local to the cooker...

 

upstairs we got a traditional thai kitchen on the terrace where there is good ventilation and the hazard from gas leaks is reduced...but they still close the valve to conserve the gas and make the bottle last longer...