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Old 08-17-2017, 08:10 PM #1
HWY36
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propane psi danger

So I've been running a propane heavy blend lately. Not used to the high psi's and not loving them (typically 120, as high as 150). I use 4' columns and have a 12' honey pot that I shoot over to. Can anyone tell me at what psi I should start panicking? Any need to change any equipment to accommodate the higher pressures (seals, hoses, etc?)?For sure I'm going to change the pressure release valves from the current 150 psi to 250 psi if anyone knows a good/cheap place to get them. Any insight towards safety in case I'm overlooking anything would be greatly appreciated.
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Old 08-18-2017, 12:43 AM #2
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What temperature are you running at? That seems pretty high to me, we run 50/50 blend and never really see over 50-60 psi on the collection.
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Old 08-18-2017, 02:16 AM #3
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Quote:
Originally Posted by HWY36 View Post
So I've been running a propane heavy blend lately. Not used to the high psi's and not loving them (typically 120, as high as 150). I use 4' columns and have a 12' honey pot that I shoot over to. Can anyone tell me at what psi I should start panicking? Any need to change any equipment to accommodate the higher pressures (seals, hoses, etc?)?For sure I'm going to change the pressure release valves from the current 150 psi to 250 psi if anyone knows a good/cheap place to get them. Any insight towards safety in case I'm overlooking anything would be greatly appreciated.
Your 12" 13MHP clamp is rated at 150psi at 70F.

I don't recommend changing the pressure reliefs to 250F.
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Old 08-21-2017, 05:40 AM #4
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Quote:
Originally Posted by Gray Wolf View Post
Your 12" 13MHP clamp is rated at 150psi at 70F.

I don't recommend changing the pressure reliefs to 250F.
GW, Are these PSI's normal for say, 100% propane? Why not the 250F pressure relief?
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Old 08-21-2017, 12:26 PM #5
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Originally Posted by HWY36 View Post
GW, Are these PSI's normal for say, 100% propane? Why not the 250F pressure relief?
The clamp is only rated for 150 psi. It would fail before the PRV released.
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__________________
An age is called Dark not because the light fails to shine, but because people refuse to see it.

Believing is seeing and ignorance is bliss until it bites you in the ass!

Fervor is the weapon of the impotent. The harder the sell, the poorer the product.

Alas, my ignorance abounds; the more I've learned, the less I know that I know..........

Thou shalt seek and respect the opinions of operators, even unto the third helper, for theirs is a wisdom unknown to technicrats.

Wise men learn more from fools, than fools from wise men.

In my dotage I finally discovered that the secret to putting on pants both legs at a time is sitting down.
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Old 08-21-2017, 06:19 PM #6
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Originally Posted by Gray Wolf View Post
The clamp is only rated for 150 psi. It would fail before the PRV released.
Got it. I should have clarified. I was going to change the pressure relief on the columns; they are 4' by 4 ft long.

Is 120 -150F a safe operating range in the columns? Should I change the pressure relief valves on them? Thank you in advance?
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