Propane Regulator leaking on Street Side

Francesca Knowles wrote:

wa8yxm wrote:
To the person who mentioned the not understanding the purpose of the single stage regulator

There are basically 2.1 types of regulator systems I have seen (this is the .1)

Single stage take gas from a variable pressure of around 100 PSI (can be 50 or 200) to a pressure of roughly 0.5 PSI in one jump, That's a lot to expect of a regulator. (O.5 PSI is about the pressure needed to hold 11" of water up, the exact outlet pressure is = to 11" of water least anyone want to argue with my 1/2 PSI round off).

Thus they came up with the 2 stage, Take it down to about 20-30 in one step, and 1/2 in the second.

usually the sequence is Tank-line-switchover valve-Stage 1-Stage 2-lines to appliances.

In this case it's Tank--Stage 1--Valve--Stage 2

NOTE that there are two tanks and two lines to the valve (And in this system two stage 1's)

That was me- I was actually wondering WHY there's a regulator on the offside tank plus a double autochangeover (two-stage?) regulator at the "main" tank. Most dual tank setups have only the latter.

Or did I get that completely wrong?

READ my post. It is to prevent HI pressure gas from going from one side of the RV to the other. IF you have a break in the supply line from the RED regulator side to the other side which has the regular LP regulator, it will be low pressure and not as much as a danger. Yes, leaking LP is a danger, but better to have low pressure smaller leak than a HI pressure leak. The reason to have a 2 stage regulator is you get a better constant 11.5 inches pressure. A Single stage can possibly have low pressure fluctuations. You will see single stage on Gas Grills and such as that type appliance can handle fluctuations and the LP regulator is only handling that one appliance. Doug