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Model Engineering Clearing House :: General :: General Chat :: Gas flow problem Author Topic: Gas flow problem (Read 262 times) itbookham Active Member member is offline Joined: Sept 2007 Gender: Male Posts: 31 Gas flow problem « Thread Started on Mar 18, 2012, 4:35pm » Hello, I recently bought a used Accucraft Ruby (45mm Gauge). I am having problems with the flow of gas from the gas tank. I don't think it is the gas jet, as I have removed the pipe which connects the jet to the tank. When the tank is filled and the gas regulator is opened the gas flow coughs and splutters, and there is not a steady flow of gas but interrupted and patchy. Could it be that the gas canister which is used to fill the tank is at fault? The canister is about 12-24 months old? Any thoughts will be much appreciated. I am not too sure if this is the right Forum for G Scale live steam? Many thanks, Mark Link to Post - Back to Top   Logged SteveW Statesman member is offline Joined: Jul 2004 Gender: Male Posts: 809 Re: Gas flow problem « Reply #1 on Mar 18, 2012, 9:13pm » Mark, I have no idea about your model but if the gas flow is spluttering it could be that you're getting both gas and liquid gas at the jet. If you don't have a vapourisor, basically the liquid gas feed pipe goes through the flame or at least a hot bit you'll should only be feeding the jet with gas from the top of the tank and not liquid from the bottom. I've seen steam boat applications where two feeds are used from the gas tank, one gas, one liquid. The system is started on gas to get it hot then swapped to liquid gas which goes through the now hot vapouriser. The point being it avoids the conversion of liquid to gas freezing the tank and shutting down the source of gas. This can also happen when taking a very high gas flow from a bottle when soldering big boilers. Link to Post - Back to Top   Logged SteveW (Locomotion@...) itbookham Active Member member is offline Joined: Sept 2007 Gender: Male Posts: 31 Re: Gas flow problem « Reply #2 on Mar 19, 2012, 5:36pm » Hello Steve, Much obliged for your advice. Mark Link to Post - Back to Top   Logged Forum Jump--------------------» Home--------------------» General--------------------- Board Admin- General Chat- ME Club Information- Tools and Tooling- Images- Model Engineer- Boiler Design, Construction & Testing--------------------» Buy, Sell, Exchange--------------------- Personal- Trade--------------------» Modelworks--------------------- General Chat- Britannia- 14XX- Bagnall- Black 5- Duchess--------------------» Prairie--------------------- General Chat--------------------» Simplex--------------------- General Chat--------------------» Stationary Engines--------------------- General Chat--------------------» Gauge 1--------------------- General Chat--------------------» Road Steam--------------------- General Chat

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