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Can anyone please explain how the LPG regulator works Ė or link to a site which does?
The problem I have is that every few seconds, a small burst of gas seems to be expelled from one of the two small holes in the side of the regulator body and I would like to understand the purpose of these holes before buying a new regulator.
If the operation is similar to a diving regulator then the small holes are to admit ambient pressure air to the non-LPG gas side of the diaphragms. Is this the same on the LPG regulator?
I could understand that if a diaphragm had a hole in it then gas would escape but I canít understand why the escape seems to be intermittent.
The regulator is the one that came with the motorhome Ė 30mb fixed to the bulkhead. All the gas appliances still work OK.
I will try.
The gas flow to your appliances has to pass through a small needle valve in the regulator. This needle valve is kept open with a spring. Attached to this needle valve is a large diaphragm. The appliance side of the needle valve applies gas pressure to the diaphragm and when the pressure is sufficient will overcome the spring and close the valve. A balance is reached with the valve just open enough to enable sufficient gas through to supply the appliances.
If more pressure is required then a stronger spring is used.
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