Propane regulator

Marshall Excelsior now makes that regulator- and they make them in the US. Seem to be higher quality than the last Marshall Gas units.

Yes, Marshall Gas is out of business. But they were made in San Marcos, Texas. Still part of the U.S.

RegO regulators are made in the USA (Elon College NC)and warranted for 10 years.
More expensive Yes but you get what you pay for.

I Believe Marshall Gas went bankrupt and they were made outside the US, Cavangna is made in Europe. Most all the others a Chinese.

MSGTRETIREDCSP wrote:

newman fulltimer wrote:
Are you using a marshall? Are you absolutly sure its not your bottles are not properly purged?

I'm curious, how do you purge the bottles of possible water?

Bottles are supposed to not have water in them coming from the factory, They are purged of AIR when they are first filled.. That should be the only purging needed.

Sometimes a load of propane may come with some oil in it, this can cause issues with the regulator.

in around 35 years of camping I have replaced ONE regulator, it was leaking.

Did you see this for Cavanga regulators?
Reset procedure

Sorry I didn't explain the problem.
The first regulator is a Fairview Model GR-9984-A. the problem was the indicator stayed green and emptied both tanks. It's still green with the regulator off the trailer. I think the second regulator is a Cavagna Group Type 924N. This one started clicking so I removed the tank cover and it showed green I turned the tank off that it was switched to and it still clicked so I turned that tank back on and turned the other tank off and the clicking stopped and about two minutes later the indicator turned red so I turned the full tank back on and the indicator turned green and no clicking.

Thank you.
Wayne

Bill T wrote:
There are three flow control devices before the gas gets to the regulator.

One is built in to the gas cylinder valve to prevent excess flow, take a cylinder and remove the green Acme nut, open the valve, it will only allow a small amount of gas pressure to vent.

Second flow control is a flow/check valve built in to the green Acme nut. Will prevent gas from escaping the system when the cylinder is removed for refilling.

Third is temperature sensing device that is in the green Acme nut that melts and prevents gas flow.

The first two devices should be checked for proper operation before condemning a regulator. And as stated we really need to know what your problem is.

The Marshall is a good regulator. Also there is a Rego #7525B34 a bit on the higher end price scale.

And if you do change your regulator be sure to replace with the same or greater btu output.

That one is a spring loaded shutoff. Without a hose connected no propane flows. If any does then valve is not completely closing.

When the thermal bushing in ACME nut melts it allows 'stub' to move back. Stub is what holds cylinder spring loaded valve open.

There are three flow control devices before the gas gets to the regulator.

One is built in to the gas cylinder valve to prevent excess flow, take a cylinder and remove the green Acme nut, open the valve, it will only allow a small amount of gas pressure to vent.

Second flow control is a flow/check valve built in to the green Acme nut. Will prevent gas from escaping the system when the cylinder is removed for refilling.

Third is temperature sensing device that is in the green Acme nut that melts and prevents gas flow.

The first two devices should be checked for proper operation before condemning a regulator. And as stated we really need to know what your problem is.

The Marshall is a good regulator. Also there is a Rego #7525B34 a bit on the higher end price scale.

And if you do change your regulator be sure to replace with the same or greater btu output.

I had a furnace that refused to stay lit, but all the other propane appliances worked well.

Tech eventually determined that the problem was the regulator not maintaining enough gas pressure for the furnace.

They replaced it with the Marshall regulator linked to above. And all is well.

They do go bad for whatever reason.

dons2346 wrote:
Regulators can shut the propane off if you open the valve to quick as it will assume that there is a serious leak. Ease the valve open instead of twisting it fast. If the regulator shuts the propane, the regulator will reset itself eventually

2 stage LP regulator used on RVs doesn't do that.

The 'excess flow' valve is an internal ball check valve in the green ACME nut on the pigtail hose.

OP......

How have your regulators been failing?
Leaking or failure to preform.

What brand were the regulators you used?