Hoe Do Flame Failure Gas Shut Off Devices On Marine Cookers Work?

[Deleted member 36384]

..... As for the OP considering "implementing a bodge" on a gas system in a boat (or anywhere else for that matter) I can't believe I just read that!

Replace the current oven gas valve for one that does not have a solenoid valve. They are available but may require an alternative mounting arrangement.

If I choose to bodge, I do it properly.

 

[saltylegs]

All of the suggestions so assume that a thermocouple is used on this cooker.

Thermocouples generate small electrical voltages when the two ends are at different temperatures. They are commonly used in domestic boilers and other gas appliances to detect whether the gas is burning correctly. There is an associated circuit which operates a solenoid valve.

However, it is unlikely that they would be used on a basic boat cooker since these do not usually have any electric power. I think that it is more likely to be a simple mechanical device, relying on the expansion of some medium inside the probe to operate a gas valve.

I have not been able to find any details of how they might work but if they use a liquid or gas it is unlikely that they can be repaired. You will probably need to buy the appropriate spare part.

the type of devise you describe is an FSD either vapour or liquid expansion type these are not normally found on marine appliancies as they do not fail safe and let a small amount of gas to flow without being lit and with the description in the OP he has a T/couple. also I dont think force 4 use FSD's.

back to the OP on a force 4 you can use a universial T/couple some available for less than a fiver,try (google) bes or gas products.

 

[Jim@sea]

Q. How Do Flame Failure Gas Shut Off Devices On Marine Cookers Work?

A. If it's a Plastimo - they probably don't

Perhaps things have changed in boat construction but I had a 26ft Motor Boat and with perhaps bashing through the waves must have loosened the gas pipe where it bolts onto the back of the cooker and when I went below to light the stove there was a small explosion and flames and I immediatly shot to the back of the boat to turn the gas off at the bottle.

 

[Bosun Higgs]

Taking advantage of this discussion, I have a Plastimo Atlantic cooker where the oven lights and stays on at full power but wont turn down for maybe 2 or 3 minutes. What is the likely problem?

 

[Giblets]

Taking advantage of this discussion, I have a Plastimo Atlantic cooker where the oven lights and stays on at full power but wont turn down for maybe 2 or 3 minutes. What is the likely problem?

If a thermostat is fitted then the oven has to heat up before the flames reduce to maintain the required temperature. Quite normal operation.