Propane Pigtails

I recommend the Cavagna brand pigtails. They seem to have a superior crimp and build quality.

https://www.rvplus.com/lp-gas/pigtails-gas-hoses-and-accessories/pigtails/

To protect the rubber from the sun consider some plastic corrugated wire loom material.

Pigtails have a 'flow limiting' check valve inisde the ACME Nut.
If upstrea/downstream flows are not balanced then the 'ball' moves to the 'closed' position (towards downstream flow direction) thus Limiting the flow of propane (amount of propane availble is diminished if a LEAK shpuld occur)

Opening the OPD/Service Valve too quickly will trip the flow limiting device
To reset one needs to close the OPD, wait 30 seconds and then Open OPD SLOWLY

Two styles of pigtails
Old Version ....there is an EXPOSED thermal bushing on backside of ACME Nut.
New Version....the thermal bushing is covered and just a little of bushing is visible thru slots
That thermal bushing melts in 'high temp' (fire) and allows the internal stub to slide backwardswhich allows OPD spring loaded check valve to close stopping all propane flow from cylinder

Do you have a cover over your cylinders/pigtails/regulator??

Exposed to sunlight WILL cause the pigtail hoses to deteriorate in just a few years.
Replace at any signs of hoses cracking, becoming brittle, malfunctioning (inside of hoses breaking down)-----cylinder pressure on pigtails can be as high as 250# PLUS
A busted pigtail hose (between OPD and REG) WILL allow propane to FLOW at High Pressure and cause a HUGE Vapor Cloud.....not good!

Thanks for the follow up.

My pigtails on totally out of the sun. The tanks, regulator and pigtails are in a compartment. BTW, I tried numerous times to get the propane to flow and also opened the valve slowly. I disconnected, reconnected and tried several times. I saw no issues with the pigtail. I just could not get any pressure and the indicator on the regulator never moved from red to green.

time2roll wrote:
I recommend the Cavagna brand pigtails. They seem to have a superior crimp and build quality.

https://www.rvplus.com/lp-gas/pigtails-gas-hoses-and-accessories/pigtails/

To protect the rubber from the sun consider some plastic corrugated wire loom material.

Yes, that is what I/we use. Notice the crimp on the rubber. THAT is what you want. The BAD ones are the ones that use a standard round crimp ring like you see on water plastic tubing. THOSE will leak after a few years. Covering the rubber pigtails to keep the UV and sun from hitting them also helps. Doug

After the squirrels got mine this year, I plan on switching everything over to stainless braided. Only needs to happen once.

No flow from not screwed in all the way, defective flow limiter or defective back flow. Here is my pigtail attached to cylinder and no regulator, note back flow check at the regulator connection. need volume to hear propane flow.

RV pigtail